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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#161
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combi vs conventional
On Thu, 24 Jun 2004 01:14:41 +0100, "IMM" wrote:
"Andy Hall" wrote in message .. . On Wed, 23 Jun 2004 23:32:52 +0100, "IMM" wrote: A U6 212 cu/ft per/hr meter could handle 350 cu/foot no problem at all, and were installed to do so, despite having 212 on the front. The limiting factor was the supply pipe, which being 1" should deliver 350 no problem anyhow. Could you produce a letter from Transco approving this as a working specification? No. You have to take a professionals word for it. That fills me with confidence....... ..andy To email, substitute .nospam with .gl |
#162
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In article ,
IMM wrote: You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. So is capable of sustaining the same flow/temperature at all times? Care to state what this sustainable flow is and at what temperature? That can sustain the temperature at the above mentioned 6.6 lpm, or if you accept a fall in temp you can have the 11 lpm flowrate. Either will result in a significant drop in flow rate at the tap (i.e. well under half of what you started out with). If you have a non thermostatic shower you are likely to get you gonads frozen off. I see no maths only figures plucked from the air. Well, let's see some accurate ones. If you can. -- *I was once a millionaire but my mom gave away my baseball cards Dave Plowman London SW To e-mail, change noise into sound. |
#163
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IMM wrote:
Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? That can sustain the temperature at the above mentioned 6.6 lpm, or if you accept a fall in temp you can have the 11 lpm flowrate. Either will result in a significant drop in flow rate at the tap (i.e. well under half of what you started out with). If you have a non thermostatic shower you are likely to get you gonads frozen off. I see no maths only figures plucked from the air. Sorry, thought it was self evident - here we go with sub titles for the hard of thinking: 28kW Boiler - lets assume that is the power that is going to actually heat the water, and there are no other efficency losses to take into account. That is 28,000J / Sec, but we are interested in flow rate / min hence 28,000 x 60 = 1,680,000 J of energy available per min. Water takes 4200J of energy to raise its temperature by 1 degree C. We are interested in a 60 degree rise (65 final temperature less the assumed 5 degrees ground water temperature during winter). Hence the energy required is: 4200 x 60 = 252,000 J/kg So the total number of kilograms of water than can be raised to the desired temperature is: 1680000 / 252000 = 6.67 kg With 1 kg being equivilent to 1L (near enough) that gives you the 6.67 lpm As for figures plucked from the air (your speciality I believe) the 28kW you supplied, the 4200J/kg/C is the specific heat capacity of water - go look it up if you want verification, the 5 degree ground water temperature in winter, is an arbitary figure that should be fairly representertive for most of the country. Oh and the sixty seconds in a minute figure I did just pluck from my memory... -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#164
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combi vs conventional
In article , Andy Hall
wrote: Obviously system components are designed with a margin. It remains bad practice to use them close to and certainly beyond their specification. I have had this sort of 'argument' with an engineer friend over steel beam sizing. My approach is that I like to have something in hand, notwithstanding the fact that a steel beam that can, by the codes, hold up 10 tonnes won't actually start failing until you apply a load of 15-20 tonnes, so I wouldn't use that section for a load of 9.9 tonnes. My friend's view is that this is precisely the section you should be using (unless you have some reason to expect that loads may increase in the future) as it is adequate and anything larger is needless expense: "an engineer is someone who can do for $1 what anyone else can do for $2" (anon). You're not unhappy about taking 13A out of a 13A socket are you? I can see no problem with taking 60kW out of a 62kW rated supply since (i) unless there is a major appliance malfunction there is no risk of this being exceeded and (ii) nothing very dreadful will happen if the pressure drops slightly - it's not like the gas main will glow red hot when you try and pull too much gas through it. Having said this I would think it unwise not to allow for the future installation of a gas cooker (if not already present) when determining the supply capacity -- Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm |
#165
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combi vs conventional
"Andy Hall" wrote in message ... On Thu, 24 Jun 2004 01:14:41 +0100, "IMM" wrote: "Andy Hall" wrote in message .. . On Wed, 23 Jun 2004 23:32:52 +0100, "IMM" wrote: A U6 212 cu/ft per/hr meter could handle 350 cu/foot no problem at all, and were installed to do so, despite having 212 on the front. The limiting factor was the supply pipe, which being 1" should deliver 350 no problem anyhow. Could you produce a letter from Transco approving this as a working specification? No. You have to take a professionals word for it. That fills me with confidence....... That is an improvement. |
#166
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combi vs conventional
"John Rumm" wrote in message ... IMM wrote: Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? You obviously can't see it. E.g., a 60 litre cylinder will deliver more than 60 litres. It effectively increases the size of the cylinder. A conventional cylinder can be made "bigger" by not replacing it by having a flow switch that operates only when flow is above a certain rate (you don't want the boiler firing when the tap is on for a few seconds). Also a blending valve on the draw-off and storing water hotter will extend the size too. Blending valves are to become the norm next year. That can sustain the temperature at the above mentioned 6.6 lpm, or if you accept a fall in temp you can have the 11 lpm flowrate. Either will result in a significant drop in flow rate at the tap (i.e. well under half of what you started out with). If you have a non thermostatic shower you are likely to get you gonads frozen off. I see no maths only figures plucked from the air. Sorry, thought it was self evident - here we go with sub titles for the hard of thinking: Good. You can keeping going back to them. 28kW Boiler - lets assume that is the power that is going to actually heat the water, and there are no other efficency losses to take into account. That is 28,000J / Sec, but we are interested in flow rate / min hence 28,000 x 60 = 1,680,000 J of energy available per min. Water takes 4200J of energy to raise its temperature by 1 degree C. We are interested in a 60 degree rise (65 final temperature less the assumed 5 degrees ground water temperature during winter). Hence the energy required is: 4200 x 60 = 252,000 J/kg So the total number of kilograms of water than can be raised to the desired temperature is: 1680000 / 252000 = 6.67 kg With 1 kg being equivilent to 1L (near enough) that gives you the 6.67 lpm As for figures plucked from the air (your speciality I believe) the 28kW you supplied, the 4200J/kg/C is the specific heat capacity of water - go look it up if you want verification, the 5 degree ground water temperature in winter, is an arbitary figure that should be fairly representertive for most of the country. Oh and the sixty seconds in a minute figure I did just pluck from my memory... Once again, a representative outlet temperature of approx 43C (average shower/bath) gives far more than near 7 litres/min. Of course having 99C outlet temperature would reduce the flowrate too. Duh! |
#167
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On Thu, 24 Jun 2004 11:38:12 +0100, Tony Bryer
wrote: In article , Andy Hall wrote: Obviously system components are designed with a margin. It remains bad practice to use them close to and certainly beyond their specification. I have had this sort of 'argument' with an engineer friend over steel beam sizing. My approach is that I like to have something in hand, notwithstanding the fact that a steel beam that can, by the codes, hold up 10 tonnes won't actually start failing until you apply a load of 15-20 tonnes, so I wouldn't use that section for a load of 9.9 tonnes. My friend's view is that this is precisely the section you should be using (unless you have some reason to expect that loads may increase in the future) as it is adequate and anything larger is needless expense: "an engineer is someone who can do for $1 what anyone else can do for $2" (anon). You're not unhappy about taking 13A out of a 13A socket are you? I can see no problem with taking 60kW out of a 62kW rated supply since (i) unless there is a major appliance malfunction there is no risk of this being exceeded and (ii) nothing very dreadful will happen if the pressure drops slightly - it's not like the gas main will glow red hot when you try and pull too much gas through it. Having said this I would think it unwise not to allow for the future installation of a gas cooker (if not already present) when determining the supply capacity This was really my point. 2kW of spare capacity doesn't allow you to run much at all - not even a hob. Given that we know that a boiler used in this way really is going to use the 60kW, by definition adding something of any note *is* going to put the requirement over the limit. OK, so one can argue that there is a design margin wherein the pressure on the consumer side of the meter won't drop below spec. until the flow is some way over 62kW, and that the pressure at the appliances will be in spec. as long as the pipes are adequately sized and that there is a margin of tolerance on what appliances will accept and work OK. However, we *know* that we are going to be operating outside the spec. limits as soon as anything else other than perhaps a gas poker is added, so it does mean that the design rule is bound to be broken, not that one is designing up to it. ..andy To email, substitute .nospam with .gl |
#168
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combi vs conventional
On Thu, 24 Jun 2004 11:02:55 +0100, John Rumm
wrote: IMM wrote: Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? John, you know that, I know that, almost everybody reading this knows that as does anybody who understands basic first form thermodynamics. I think that even IMM knows that but chooses to gloss over it. That can sustain the temperature at the above mentioned 6.6 lpm, or if you accept a fall in temp you can have the 11 lpm flowrate. Either will result in a significant drop in flow rate at the tap (i.e. well under half of what you started out with). If you have a non thermostatic shower you are likely to get you gonads frozen off. I see no maths only figures plucked from the air. Sorry, thought it was self evident - here we go with sub titles for the hard of thinking: 28kW Boiler - lets assume that is the power that is going to actually heat the water, and there are no other efficency losses to take into account. That is 28,000J / Sec, but we are interested in flow rate / min hence 28,000 x 60 = 1,680,000 J of energy available per min. Water takes 4200J of energy to raise its temperature by 1 degree C. We are interested in a 60 degree rise (65 final temperature less the assumed 5 degrees ground water temperature during winter). Hence the energy required is: 4200 x 60 = 252,000 J/kg So the total number of kilograms of water than can be raised to the desired temperature is: 1680000 / 252000 = 6.67 kg With 1 kg being equivilent to 1L (near enough) that gives you the 6.67 lpm As for figures plucked from the air (your speciality I believe) the 28kW you supplied, the 4200J/kg/C is the specific heat capacity of water - go look it up if you want verification, the 5 degree ground water temperature in winter, is an arbitary figure that should be fairly representertive for most of the country. Oh and the sixty seconds in a minute figure I did just pluck from my memory... This does all involve long multiplication and division and working in proper scientific units so could be a stretch..... ..andy To email, substitute .nospam with .gl |
#169
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IMM wrote:
The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? You obviously can't see it. E.g., a 60 litre cylinder will deliver more than 60 litres. It effectively increases the size of the cylinder. A conventional cylinder can be made "bigger" by not replacing it by having a flow switch that operates only when flow is above a certain rate (you don't want the boiler firing when the tap is on for a few seconds). Also a blending valve on the draw-off and storing water hotter will extend the size too. Blending valves are to become the norm next year. I think you will find that I can "see it" just fine - I can also see it makes naff all difference in real terms... Lets say somone is running a bath - they are drawing 30 lpm from the hot supply. Your 60 L tank will be completely drained in 2 mins. The replacement water will be at 5 deg. Lets say your snazzy integrated system in a box boiler has flow actuated switching and spots this the moment the bath tap goes on. So the boiler runs flat out for the whole two mins. Hence it adds 28000 x 120 = 3,360,000 J of heat to the cold water. So 3360000 / 4200 / 60 gives a temp delta of 13 odd degrees, raising its temperature to a tad over 18 degrees total... So your bath was running for two mins. You were drawing 30 lpm from the hot plus say 15 lpm of cold water - 90L so far - the mix temp would have worked about right allowing for some losses heating the bath etc. You are now however filling the bath 30 lpm of 18 degree water mixed with 15 lpm of 5 degree water. You do the math... If somone got in the shower a couple of mins before the bath started running, the situation gets even worse. Sorry, thought it was self evident - here we go with sub titles for the hard of thinking: Good. You can keeping going back to them. I can - not much point though - you obviously don't want to learn... Next time you are in a book shop, why not look out a basic book on physics? You may find it helps. Otherwise you are not going to shake your reputation that every time you open your mouth in public it is just to change feet. Once again, a representative outlet temperature of approx 43C (average shower/bath) gives far more than near 7 litres/min. Of course having 99C outlet temperature would reduce the flowrate too. Duh! Pay attention, you need to take into consideration the temp of the stored water, and the rate of draw off. The 43 degrees is the blend temperature. Even with an auto blending valve you are not going to sustain the 43 degree output when the temperature of both inputs fall (or remain) below that figure. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#170
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"Andy Hall" wrote in message ... On Thu, 24 Jun 2004 11:02:55 +0100, John Rumm wrote: IMM wrote: Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? John, you know that, I know that, You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! |
#171
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"John Rumm" wrote in message ... IMM wrote: The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? You obviously can't see it. E.g., a 60 litre cylinder will deliver more than 60 litres. It effectively increases the size of the cylinder. A conventional cylinder can be made "bigger" by not replacing it by having a flow switch that operates only when flow is above a certain rate (you don't want the boiler firing when the tap is on for a few seconds). Also a blending valve on the draw-off and storing water hotter will extend the size too. Blending valves are to become the norm next year. I think you will find that I can "see it" just fine - I can also see it makes naff all difference in real terms... Lets say somone is running a bath - they are drawing 30 lpm from the hot supply. Tsk, tsk. Flowrate is 60-65C @ 19 litres/min. Your 60 L tank will be completely drained in 2 mins. No it will not. These actually fill a 120 litre bath with no problems at all (for your info: BS recommened flow for a bath tap is 16 litres/min). Here is a snip from uk.d-i-y regarding an Ariston Genus 27 which has an integral 60 litre cylinder... Anyway, it's all plumbed in and it is superb. The central heating works like a dream - it's like a sauna in our house. AND tons of hot water. It's great. I'm looking forward to creating another bathroom in the loft and seeing if this boiler can handle the demand from 2 bathrooms. So, on my limited experience of heating systems and boilers I would recommend this boiler if anyone wants lots of heat and hot water. Note: that is does his one bathroom super well. It will do two baths as long as they are not filled at the same time. Well two 100 litre baths being filled by a CB50 would cope as it would never run out of hot water. A little slow with two bath filling of course. It will do two average 7 to 7.5 litre/min showers. And one bath could be filled and a recovery rate of a few minutes and the other is filled. I reckon a CB50 would do two bathrooms, as the possibility of two baths being run at once is slim. snip misinformed babble |
#172
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In article ,
IMM wrote: Here is a snip from uk.d-i-y regarding an Ariston Genus 27 which has an integral 60 litre cylinder... Anyway, it's all plumbed in and it is superb. The central heating works like a dream - it's like a sauna in our house. AND tons of hot water. It's great. I'm looking forward to creating another bathroom in the loft and seeing if this boiler can handle the demand from 2 bathrooms. So, on my limited experience of heating systems and boilers I would recommend this boiler if anyone wants lots of heat and hot water. Note: that is does his one bathroom super well. In his 'limited experience of heating systems' Perhaps a relation of yours? -- *I started out with nothing... and I still have most of it. Dave Plowman London SW To e-mail, change noise into sound. |
#173
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On Wed, 23 Jun 2004 22:46:12 +0100, IMM wrote:
It is not a pertinent factor. Boilers don't brake down every month. True enough since they are (usually) fastened to the house so don't move very fast. Perhaps things are different for mobile installation wink. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html |
#174
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On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote:
You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? ..andy To email, substitute .nospam with .gl |
#175
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"Ed Sirett" wrote in message news On Wed, 23 Jun 2004 22:46:12 +0100, IMM wrote: It is not a pertinent factor. Boilers don't brake down every month. True enough since they are (usually) fastened to the house so don't move very fast. Perhaps things are different for mobile installation wink. Ed - you waste your breath on DIMM ;-( |
#176
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combi vs conventional
"Andy Hall" wrote in message ... On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote: You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? This proves you are on planet Zog and detached from reality. Just about every man woman and child in the UK in the past 2 weeks has heard of Wayne Rooney, unless you live on the top of a mountain....or on planet Zog. |
#177
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"Ed Sirett" wrote in message news On Wed, 23 Jun 2004 22:46:12 +0100, IMM wrote: It is not a pertinent factor. Boilers don't brake down every month. True enough since they are (usually) fastened to the house so don't move very fast. Perhaps things are different for mobile installation wink. Poor attempt at humour. 2/10. |
#178
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"John" wrote in message ... "Ed Sirett" wrote in message news On Wed, 23 Jun 2004 22:46:12 +0100, IMM wrote: It is not a pertinent factor. Boilers don't brake down every month. True enough since they are (usually) fastened to the house so don't move very fast. Perhaps things are different for mobile installation wink. Ed - you waste your breath on DIMM ;-( Our cowboy CORGI man raises his head. |
#179
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On Thu, 24 Jun 2004 23:25:29 +0100, "IMM" wrote:
"Andy Hall" wrote in message .. . On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote: You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? This proves you are on planet Zog and detached from reality. Just about every man woman and child in the UK in the past 2 weeks has heard of Wayne Rooney, unless you live on the top of a mountain....or on planet Zog. I've just read in the news that he has something to do with football, which I explained much earlier holds less than zero interest for me. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism and gratuitous violence the silly flags on cars episode will also end. ..andy To email, substitute .nospam with .gl |
#180
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"Andy Hall" wrote in message news On Thu, 24 Jun 2004 23:25:29 +0100, "IMM" wrote: "Andy Hall" wrote in message .. . On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote: You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? This proves you are on planet Zog and detached from reality. Just about every man woman and child in the UK in the past 2 weeks has heard of Wayne Rooney, unless you live on the top of a mountain....or on planet Zog. I've just read in the news that he has something to do with football, Just? What has it been like on planet Zog for the past 2 weeks? which I explained much earlier holds less than zero interest for me. An unsporting man. A man without sport is an odd one. I always watch them. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism You mean foreign police forces having baton practice on our citizens! and gratuitous violence By foreign police forces. the silly flags on cars episode will also end. So you were not wearing a Wayne Rooney mask then! How unpatriotic! And you think the English flag silly too. Get back to planet Zog. If you were my neighbour I would watch you very carefully. |
#181
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On Fri, 25 Jun 2004 00:23:12 +0100, "IMM" wrote:
Just? What has it been like on planet Zog for the past 2 weeks? You tell me. which I explained much earlier holds less than zero interest for me. An unsporting man. A man without sport is an odd one. I always watch them. I didn't say that, just that football holds no interest. There are other sports. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism You mean foreign police forces having baton practice on our citizens! If they misbehave then that is entirely reasonable So you were not wearing a Wayne Rooney mask then! How unpatriotic! And you think the English flag silly too I didn't say that either and I previously explained that I am by no means unpatriotic. However, I do think that use of England flags on idiot's cars and houses in connection with something as trivial as a football tournament is inappropriate. I don't think that national identity and culture depends on a group of inarticulate and overpaid primadonnas attempting to kick a ball around. If you were my neighbour I would watch you very carefully. How do you know I'm not your neighbour :-) ..andy To email, substitute .nospam with .gl |
#182
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"Andy Hall" wrote in message ... On Fri, 25 Jun 2004 00:23:12 +0100, "IMM" wrote: Just? What has it been like on planet Zog for the past 2 weeks? You tell me. which I explained much earlier holds less than zero interest for me. An unsporting man. A man without sport is an odd one. I always watch them. I didn't say that, just that football holds no interest. There are other sports. Tiddlywinks? Football is the beautiful game, the most popular in the world. A game we gave to the world. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism You mean foreign police forces having baton practice on our citizens! If they misbehave then that is entirely reasonable No. Foreign police forces having baton practice on our citizens. So you were not wearing a Wayne Rooney mask then! How unpatriotic! And you think the English flag silly too I didn't say that either and I previously explained that I am by no means unpatriotic. However, I do think that use of England flags on idiot's cars and houses in connection with something as trivial as a football tournament is inappropriate. Should we wave flags for Tiddywinks then? I don't think that national identity and culture depends on a group of inarticulate Petty snobbery coming out here. and overpaid primadonnas attempting to kick a ball around. Jealousy too. Is it because most of the talent is from the working class? I think so. If you were my neighbour I would watch you very carefully. How do you know I'm not your neighbour :-) People like you stand out. I read this in the Mirror. It is typical of the attitude of people like you. This kid may prove to be the greatest sporting talent we have ever produced. It certainly looks that way. He is "world" news... Probably not on planet Zog though. TAKE THE MICKEY, ROONEY Jun 24 2004 IT WAS the (now second) most famous Scouser who described what it felt like to come from nothing and get it all. "They hate you if you're clever and they despise a fool, 'til you're so f****** crazy you can't follow the rules. A working-class hero is something to be," was John Lennon's take on the peculiarly British suspicion of everyone from a council house who makes it. Wayne Rooney is more Busted than Beatles, so he's probably not familiar with the lyric. But by now he'll be well-acquainted with the sentiments. How all the praise he's receiving is laced with a patronising air and a smug prediction that, as sure as butts follow benders, he'll self-destruct. He first came across this snobbery when he won the BBC's Young Sports Personality Of The Year aged 16, and was labelled an uncouth slob because he chewed gum and had a loosened tie. When he took his parents to Mexico and their pale, un-toned frames were caught stumbling out of the sea, they were ridiculed for not knowing that their place was in a Blackpool chip-shop queue. When his fiancee's 18th birthday party ended in fisticuffs, his relatives were likened to Jerry Springer trailer-trash. Profiles describe him as a "scally" from the "deprived" streets of Croxteth, by people who know as much about him and Croxteth as they do about sorghum prices in Zambia. And no analysis of his future is complete without warnings about him ending up like Gazza and George Best. An alcoholic wreck, violently abusing himself, his talent and those around him. Why? Because received wisdom states that's what happens to poorly-educated, working-class lads when they confront sudden wealth. And it sums up how deeply-entrenched the class system still is in a country which judges people on their appearance, accent and background before their talent. In a Daily Mail article which suggests he is Gazza II, a leading writer asks: "Is there some hidden vice, some secret in Rooney's psyche which is yet to emerge? Drink, drugs, wife-beating?" Well, as someone who went to the same school as Rooney and knows his teachers, the answer to that disgracefully loaded question is no. So why is it being asked, if not in expectation and hope that those vices exist? Were those same assumptions made of middle-class sportsmen like Tim Henman or Jonny Wilkinson? No. Because they're assumed to have a breeding and education which teaches them how to cope with upward-mobility. But Rooney is doomed because council house lads can't escape their roots. An attitude summed up in the popular email above, which shows stolen goods falling from Rooney's pockets as he celebrates a Euro 2004 goal, next to the words, "You can take the boy out of Liverpool..." A woefully-dated gag that may offend some Scousers, perhaps. But it's far more honest than the patronising inference lurking beneath much of the praise, that the lovable scally is an ugly late-night arrest waiting to happen. Fortunately, young Rooney has seen it all before. Two years ago he walked into a Chelsea estate agents with a fellow Evertonian, only to be escorted off the premises when they opened their mouths, by staff who thought the shell-suited pair were lining up burglaries. Today, the richest man Chelsea has ever seen, salivates over the sight of a track-suited Rooney. Roman Abramovich wants him so badly he'll part with a £50million cheque, plus £8million-a-year in wages to entice him to those same golden streets. If Rooney goes, he should do every council house kid in the land a favour. Get Roman to drop him off in his limo outside that London estate agents. Do a celebratory cartwheel into their office with £50 notes dropping out of his pockets. And watch the petrified, cap-doffing, class-riddled snobs in suits drop to their knees and gather it up. Then tell them he's buying the shop, turning it into a shell-suit emporium, and throwing them on the dole. Now that's the kind of future I wish for the lad. |
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On Fri, 25 Jun 2004 00:59:38 +0100, "IMM" wrote:
I read this in the Mirror. So it must be right then....... ..andy To email, substitute .nospam with .gl |
#184
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In article ,
Andy Hall wrote: If you were my neighbour I would watch you very carefully. How do you know I'm not your neighbour :-) You'd know if you lived next door to him by all the boiler flues... -- *Why is the man who invests all your money called a broker? Dave Plowman London SW To e-mail, change noise into sound. |
#185
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DIMM dribbled on his keyboard and some words appeared:
Tsk, tsk. Flowrate is 60-65C @ 19 litres/min. OK so it has a built in flow restrictor - whoopy do! Still makes naff all differnece: Your 60 litre tank will cycle all pre heated stored water out in 3 mins then - gives the boiler an extra 60 seconds to impart its 28kW. Net result after 3 mins the hot water is coming out at 25 degress instead of 18. (Not forgetting the taps are still set to mix water at 5 degres 1:2 with the now cool "hot" water. No it will not. These actually fill a 120 litre bath with no problems at all (for your info: BS recommened flow for a bath tap is 16 litres/min). I am sure it will fill it - but who wants a bath full of tepid water? Note: that is does his one bathroom super well. It will do two baths as long as they are not filled at the same time. Well two 100 litre baths being filled by a CB50 would cope as it would never run out of hot water. A As long as "hot" is defined as cool.... what is your name Tony Blair? little slow with two bath filling of course. It will do two average 7 to 7.5 litre/min showers. So would a bog standard non storage 38kW combi... your point being what exactly? And one bath could be filled and a recovery rate of a few minutes and the other is filled. I reckon a CB50 would do two bathrooms, as the possibility of two baths being run at once is slim. I would expect that would depend on the size of your family and their lifestyles, not something you can prognosticate about. You will just have to accept - combis are fine but they have limitations. Some people can live with them (myself included) some can't. A standard system boiler with separate (correctly sized) cylinder will be a better solution in some situations. The "system in a box" things you seem to think are combis might be easy to install but beyond that they seem to run out of attractions... snip misinformed babble go on then - argue day is night if it makes you happy. Only if you want to defy the lays of thermodynamics, please post the maths you use to arrive at the conclusions you come to. We could do with a laugh. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#186
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Dave Plowman (News) wrote:
You'd know if you lived next door to him by all the boiler flues... No you are out of date Dave - multiple boilers was the fad months ago... storage systems that convince the gullible they are combis are the thing to go for now apparently - they can fill a bathroom super good I am told. Perhaps they printed that in the Mirror as well. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#187
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In article , IMM
writes "Andy Hall" wrote in message .. . On Thu, 24 Jun 2004 11:02:55 +0100, John Rumm wrote: IMM wrote: Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? John, you know that, I know that, You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Oh here its goes, this is the "I've lost the argument" post so am going to resort to the usual rhetoric -- David |
#188
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In article , Andy Hall
writes On Thu, 24 Jun 2004 23:25:29 +0100, "IMM" wrote: "Andy Hall" wrote in message . .. On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote: You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? This proves you are on planet Zog and detached from reality. Just about every man woman and child in the UK in the past 2 weeks has heard of Wayne Rooney, unless you live on the top of a mountain....or on planet Zog. I've just read in the news that he has something to do with football, which I explained much earlier holds less than zero interest for me. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism and gratuitous violence the silly flags on cars episode will also end. Careful Andy, you're talking about John's religion here and you know what these religious fanatics are like.., if you ask he'll tell you how Everton are the most successful team in footballing history and then proceed to go on about them for ages -- David |
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In article ,
wrote: Oh here its goes, this is the "I've lost the argument" post so am going to resort to the usual rhetoric Rhetoric. The art of effective writing or speaking. I think not. -- *In some places, C:\ is the root of all directories * Dave Plowman London SW To e-mail, change noise into sound. |
#190
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On Thu, 24 Jun 2004 21:47:35 +0000, John wrote:
"Ed Sirett" wrote in message news On Wed, 23 Jun 2004 22:46:12 +0100, IMM wrote: It is not a pertinent factor. Boilers don't brake down every month. True enough since they are (usually) fastened to the house so don't move very fast. Perhaps things are different for mobile installation wink. Ed - you waste your breath on DIMM ;-( Clearly some people find there is some fun in the contest, mostly I can't be bothered. I view the matter a bit like watching bull-fighting, you know who is going to lose. So the entertainment is in then variations in which: The inevitable but fruitless 'charge' will be made. The skill with which the arguments are refuted logically and quantitatively, especially the latter. The pathos as the 'bull' persists to to his dying breath. I was going to use the metaphor of cock-fighting or bear-baiting but in those contests the outcome, presumably, is more uncertain. -- Ed Sirett - Property maintainer and registered gas fitter. The FAQ for uk.diy is at www.diyfaq.org.uk Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html |
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wrote in message ... In article , IMM writes "Andy Hall" wrote in message .. . On Thu, 24 Jun 2004 11:02:55 +0100, John Rumm wrote: IMM wrote: Simple maths... You start off with the stored water in the "system in a box" boiler at 65 deg and ample flow rate. As it runs out you revert to instant water heating. The boiler reheats the cylinder as hot water is being drawn-off. Not that it is going to make much difference.... the boiler does not have the power required to sustain the supply rate in real time that would alow it to match the performance of delivery from its inbuilt storage tank. If it could, there would be no need for the storage tank would there? John, you know that, I know that, You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Oh here its goes, this is the "I've lost the argument" post so am going to resort to the usual rhetoric Bertie, do you have your Wayne Rooney mask on? |
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wrote in message ... In article , Andy Hall writes On Thu, 24 Jun 2004 23:25:29 +0100, "IMM" wrote: "Andy Hall" wrote in message . .. On Thu, 24 Jun 2004 16:06:19 +0100, "IMM" wrote: You don't know. Get real man!! I bet you are not even a real Little Middle Englander either. Are you sitting there with your Wayne Rooney mask on? I bet not! Who the hell is Wayne Rooney? One of your cowboy friends? This proves you are on planet Zog and detached from reality. Just about every man woman and child in the UK in the past 2 weeks has heard of Wayne Rooney, unless you live on the top of a mountain....or on planet Zog. I've just read in the news that he has something to do with football, which I explained much earlier holds less than zero interest for me. I also read that the England team is out of the tournament, which presumably means that once we have had the obligatory hooliganism and gratuitous violence the silly flags on cars episode will also end. Careful Andy, you're talking about John's religion here and you know what these religious fanatics are like.., if you ask he'll tell you how Everton are the most successful team in footballing history and then proceed to go on about them for ages I would? That is stange as I an not an Everton fan. |
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"John Rumm" wrote in message ... Dave Plowman (News) wrote: You'd know if you lived next door to him by all the boiler flues... No you are out of date Dave - multiple boilers was the fad months ago... storage systems that convince the gullible they are combis are the thing to go for now apparently - they can fill a bathroom super good I am told. Perhaps they printed that in the Mirror as well. You are learning. Keep it up. |
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"Andy Hall" wrote in message ... On Fri, 25 Jun 2004 00:59:38 +0100, "IMM" wrote: I read this in the Mirror. So it must be right then....... Mr Little Middle Englander, it is right. |
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"Andy Hall" wrote in message ... On Fri, 25 Jun 2004 00:59:38 +0100, "IMM" wrote: I read this in the Mirror. So it must be right then....... Mr Little Middle Englander, it is right. |
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"John Rumm" wrote in message ... DIMM dribbled on his keyboard and some words appeared: Tsk, tsk. Flowrate is 60-65C @ 19 litres/min. OK so it has a built in flow restrictor - whoopy do! Still makes naff all differnece: You lack understanding. Your 60 litre tank will cycle all pre heated stored water out in 3 mins then - gives the boiler an extra 60 seconds to impart its 28kW. Net result after 3 mins the hot water is coming out at 25 degress instead of 18. (Not forgetting the taps are still set to mix water at 5 degres 1:2 with the now cool "hot" water. As the 28kW can deliver aprox 11 litres/min, that is 60 litres of 60-65C plus 3 mins of 11 litres, whcihs is...approx 90 litres. This will more than fill an avaegage bath of 100 litres @ 45C. No it will not. These actually fill a 120 litre bath with no problems at all (for your info: BS recommened flow for a bath tap is 16 litres/min). I am sure it will fill it - but who wants a bath full of tepid water? You are making this up. The CB50 lowers the flowrate to have approx 11 litres/min, so no tepid water. can you understand that? Have you ever seen one of these stored water combi's in action? No.of copurse not. They fill a bath zippo, no problem. Note: that is does his one bathroom super well. It will do two baths as long as they are not filled at the same time. Well two 100 litre baths being filled by a CB50 would cope as it would never run out of hot water. A As long as "hot" is defined as cool. You are a silly pillock. The CB50 does NOT run cold. Understand? little slow with two bath filling of course. It will do two average 7 to 7.5 litre/min showers. So would a bog standard non storage 38kW combi... and that it would. your point being what exactly? "It will do two average 7 to 7.5 litre/min showers". that was clear. Please focus. And one bath could be filled and a recovery rate of a few minutes and the other is filled. I reckon a CB50 would do two bathrooms, as the possibility of two baths being run at once is slim. I would expect that would depend on the size of your family and their lifestyles, not something you can prognosticate about. Yiu can. As I said "the possibility of two baths being run at once is slim". You will just have to accept - combis are fine but they have limitations. Wrong! There are various types and sizes of combi's. The average home, with average use ca be served by one. Some people can live with them (myself included) some can't. Some can't? What is it? They don't like hot water? A standard system boiler with separate (correctly sized) cylinder will be a better solution in some situations. Only if the flowrate required can't be met by a combi. A Poweremax "is" a combi and they can belt it out. The "system in a box" things you seem to think are combis might be easy to install but beyond that they seem to run out of attractions... What are you on about? snip misinformed babble go on then - argue day is night if it makes you happy. You are one who is saying a CB50 can't supply an average house. It can, AND it NEVER runs out of useful hot water reverting to infinitely continuous mode. Only if you want to defy the lays of thermodynamics, You have been taking Andy pills. You have been reading your skule science books. You have NEVER experienced a high flowrate combi in action, that is clear. And I bet you didn't wear a Wayne Rooney mask either. |
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On Fri, 25 Jun 2004 21:49:58 +0100, "IMM" wrote:
"Andy Hall" wrote in message .. . On Fri, 25 Jun 2004 00:59:38 +0100, "IMM" wrote: I read this in the Mirror. So it must be right then....... Mr Little Middle Englander, it is right. Does it still have a reading age of 8? ..andy To email, substitute .nospam with .gl |
#198
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"Andy Hall" wrote in message ... On Fri, 25 Jun 2004 21:49:58 +0100, "IMM" wrote: "Andy Hall" wrote in message .. . On Fri, 25 Jun 2004 00:59:38 +0100, "IMM" wrote: I read this in the Mirror. So it must be right then....... Mr Little Middle Englander, it is right. Does it still have a reading age of 8? Nah, that's the Sun, the Mirror is slightly higher... I'll get my coat! |
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IMM wrote:
OK so it has a built in flow restrictor - whoopy do! Still makes naff all differnece: You lack understanding. You are right - I fail to make any sense of your nonsense.... Your 60 litre tank will cycle all pre heated stored water out in 3 mins then - gives the boiler an extra 60 seconds to impart its 28kW. Net result after 3 mins the hot water is coming out at 25 degress instead of 18. (Not forgetting the taps are still set to mix water at 5 degres 1:2 with the now cool "hot" water. As the 28kW can deliver aprox 11 litres/min, that is 60 litres of 60-65C plus 3 mins of 11 litres, whcihs is...approx 90 litres. This will more than fill an avaegage bath of 100 litres @ 45C. Will it also adjust the cold tap on the bath for you? Here is where you seem to loose the plot. When the water was coming out of the hot tap at full rate, you set the taps such that you were adding 50% cold water to the mix to arrive at your final bath temperature. The boiler now decides to make a big reduction to the hot flow rate - therefore the mix temperature falls to well below bath temp. Hence you need to manually adjust for that. As does the person in the shower now getting their cobbles frozen. Also how does the shower perform after someone has been showering for five minutes and then someone else runs a bath? They start off with a shower mixed from 65 and 5 degree water - the bath tap goes on and drains the remaining high temp stored water and you are left with the 11 lpm supply at a lower temperature. 90% of which will go in the bath - net result cold shower. Not saying you can't work round these issues, or explain them to any guests you have staying etc. Then again you would not need to bother if you had installed something appropriate for your requirements in the first place. No it will not. These actually fill a 120 litre bath with no problems yup agree - filling it is not the issue.... You are a silly pillock. The CB50 does NOT run cold. Understand? Aha admitting you have now run out of argument I see.... same old form. I would expect that would depend on the size of your family and their lifestyles, not something you can prognosticate about. Yiu can. As I said "the possibility of two baths being run at once is slim". In your household perhaps - does that apply to everyone? The family with several teenagers? The one running a guest house? The one with a big corner bath that takes a couple of hundred litres? You will just have to accept - combis are fine but they have limitations. Wrong! There are various types and sizes of combi's. The average home, with average use ca be served by one. How can my statement possibly be wrong? Are you arguing that there are absolutely no limitations to a combi system? If you are it would suggest you have no real experience of these matters. Take you own advice and read back through this thread. Plenty of people have explained the various limitations. More to the point - you have on many occasions stated why you think a combi is better than a stored water system, and bleated on about the limitations of stored water systems. Now you seem to be arguing that so long as you put a stored water system in a box and pretend it is a combi, all of those limitations suddenly vanish. Perhaps you need to clarify your thinking a little. Some people can live with them (myself included) some can't. Some can't? What is it? They don't like hot water? Perhaps they need full flow rate all the time? perhaps they do not want the hot water temperature falling unexpectedly? Perhaps the maximum tank size available in the stored water system pretending to be a combi is not big enough for them? Perhaps they do not have room for such a large size of boiler? Perhaps they live in an area with unreliable mains water supply? How would you know? Do you still have two balls? Are they crystal? A standard system boiler with separate (correctly sized) cylinder will be a better solution in some situations. Only if the flowrate required can't be met by a combi. I do believe he has got it.... well done sir! You are one who is saying a CB50 can't supply an average house. It can, AND it NEVER runs out of useful hot water reverting to infinitely continuous mode. I think if you read back I did not make such a claim. I was challenging your nonsensical claim that combis are akin to the holy grail and the solution to all heating and hot water requirements. I was challenging you apparent belief that the laws of thermodynamics somehow don't apply to a boiler so long as it was designed by an "expert" and you personally have read and approved the glossy brochure or web site. You have been taking Andy pills. I will take that as a compliment - thanks! You have NEVER experienced a high flowrate combi in action I installed a high flow rate combi for our home a few months ago. (High flow rate by your previous definition that is). It is good enough. Compared to our previous stored water system it has some advantages and some disadvantages. It was a compromise that suited my requirements. And I bet you didn't wear a Wayne Rooney mask either. Very true... -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
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"John Rumm" wrote in message ... IMM wrote: OK so it has a built in flow restrictor - whoopy do! Still makes naff all differnece: You lack understanding. You are right - I fail to make any sense of your nonsense.... You lack understanding. FULL STOP. Your 60 litre tank will cycle all pre heated stored water out in 3 mins then - gives the boiler an extra 60 seconds to impart its 28kW. Net result after 3 mins the hot water is coming out at 25 degress instead of 18. (Not forgetting the taps are still set to mix water at 5 degres 1:2 with the now cool "hot" water. As the 28kW can deliver aprox 11 litres/min, that is 60 litres of 60-65C plus 3 mins of 11 litres, whcihs is...approx 90 litres. This will more than fill an avaegage bath of 100 litres @ 45C. Will it also adjust the cold tap on the bath for you? It can be arranged. Here is where you seem to loose the plot. The plot in your misinformed eyes, you mean. When the water was coming out of the hot tap at full rate, you set the taps such that you were adding 50% cold water to the mix to arrive at your final bath temperature. The boiler now decides to make a big reduction to the hot flow rate This "now", be more specific. snip tripe Also how does the shower perform after someone has been showering for five minutes and then someone else runs a bath? Someone runs the bath "immediately" after the shower? Didn't the get dried and dressed after? Or in your house do you dart in and out the shower running past each other along the way, naked. snip more tripe No it will not. These actually fill a 120 litre bath with no problems yup agree - filling it is not the issue.... Is emptying the bath an issue? You are a silly pillock. The CB50 does NOT run cold. Understand? Aha admitting you have now run out of argument I see.... same old form. What are you on about dopey? It does NOT run out of hot water. You can. As I said "the possibility of two baths being run at once is slim". In your household perhaps - does that apply to everyone? yep. The family with several teenagers? Then you get either: a) Two combi's (never run out of hot water) b) Heat bank Having "several teenagers " in the family is not average. Look up "average". snip even more tripe You will just have to accept - combis are fine but they have limitations. Wrong! There are various types and sizes of combi's. The average home, with average use ca be served by one. How can my statement possibly be wrong? It is totally wrong. Are you arguing that there are absolutely no limitations to a combi system? In an average home, no. A combi can be bought to suit 90 plus of cases. boy! more snipping of tripe More to the point - you have on many occasions stated why you think a combi is better than a stored water system, And I have. You never listened. and bleated on about the limitations of stored water systems. And I have. You never listened. Now you seem to be arguing that so long as you put a stored water system in a box and pretend it is a combi, See my post on combi's. That will put you right. Any part you don't understand ask Qs. snip tripe again Some people can live with them (myself included) some can't. Some can't? What is it? They don't like hot water? Perhaps they need full flow rate all the time? All the time to do what? To fill what? In an average house you don't have full flowrate all the time. If you do need that then get a small commercial system. The apanese make the high flowrate combis' in the world. Get one of those. more tripe snipping A standard system boiler with separate (correctly sized) cylinder will be a better solution in some situations. Only if the flowrate required can't be met by a combi. I do believe he has got it.... well done sir! Got what? You are one who is saying a CB50 can't supply an average house. It can, AND it NEVER runs out of useful hot water reverting to infinitely continuous mode. I think if you read back I did not make such a claim. You said it runs warm. tripe sipping again You have been taking Andy pills. I will take that as a compliment - thanks! I hope you both have never shared these pills at Brookmoor. You have NEVER experienced a high flowrate combi in action I installed a high flow rate combi for our home a few months ago. (High flow rate by your previous definition that is). It is good enough. Does it run warm? Compared to our previous stored water system it has some advantages and some disadvantages. It was a compromise that suited my requirements. And I bet you didn't wear a Wayne Rooney mask either. Very true... Shameful! |
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