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strange hot water
just down at the static van and I thought I would take a bath rather
than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer |
strange hot water
Thats one of the issues with Combis, the flow of water can be greater than the boilers ability to heat it. The only remedy is to slow the rate of the water and fill the bath slower but then catch 22 comes in to play in that by the time you have filled the bath it has gone tepid anyway.
Richar |
strange hot water
On 03/08/2020 09:22, Tricky Dicky wrote:
Thats one of the issues with Combis, the flow of water can be greater than the boilers ability to heat it. The only remedy is to slow the rate of the water and fill the bath slower but then catch 22 comes in to play in that by the time you have filled the bath it has gone tepid anyway. Richar or either: The combi boiler is undersized. to fill a bath, you are looking at a 38kW boiler. the DHW FPHE is scaled up affecting thermal energy transfer from the boiler internal water to the incoming cold mains water (DHW FPHE is Domestic Hot Water Flat Plate Heat Exchanger) S. |
strange hot water
On Mon, 3 Aug 2020 08:10:13 +0100, "Jim GM4DHJ ..."
wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer haveyougottheinstructionsforthewaterheaterandhavey oureadit......tee hee. Cheers, T i m |
strange hot water
On 03/08/2020 09:29, No Name wrote:
On 03/08/2020 09:22, Tricky Dicky wrote: Thats one of the issues with Combis, the flow of water can be greater than the boilers ability to heat it. The only remedy is to slow the rate of the water and fill the bath slower but then catch 22 comes in to play in that by the time you have filled the bath it has gone tepid anyway. Richar or either: The combi boiler is undersized. to fill a bath, you are looking at a 38kW boiler. Assuming your mains water pressure and delivery rate are up to it, plus the distance from meter to boiler might need 28mm gas pipe. the DHW FPHE is scaled up affecting thermal energy transfer from the boiler internal water to the incoming cold mains water (DHW FPHE is Domestic Hot Water Flat Plate Heat Exchanger) S. |
strange hot water
On 03/08/2020 08:10, Jim GM4DHJ ... wrote:
just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... |
strange hot water
On 03/08/2020 10:51, T i m wrote:
On Mon, 3 Aug 2020 08:10:13 +0100, "Jim GM4DHJ ..." wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer haveyougottheinstructionsforthewaterheaterandhavey oureadit......tee hee. Cheers, T i m I for one only read instructions as a last resort......I understand why you read them .... |
strange hot water
On 03/08/2020 12:08, Jim GM4DHJ ... wrote:
On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... all I can think is that the bath tap has a MUCH greater flow rate than the sink and whb....doesn't seem like that though .... |
strange hot water
Jim GM4DHJ ... wrote:
On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Paul |
strange hot water
On 03/08/2020 12:24, Jim GM4DHJ ... wrote:
all I can think is that the bath tap has a MUCH greater flow rate than the sink and whb....doesn't seem like that though .... Stick a bucket (or bowl, or other reasonable size container) under the taps & measure them. Andy |
strange hot water
On 03/08/2020 13:08, Paul wrote:
Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Â*Â* Paul well it is open to the elements under the van ....but wouldn't have thought |
strange hot water
On 03/08/2020 13:08, Paul wrote:
Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. They may be a Thermostatic mixing valve inline with the bath hot tap. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
strange hot water
John Rumm wrote:
On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. They may be a Thermostatic mixing valve inline with the bath hot tap. In Scotland its a legal requirement to fit either a thermostatic mixer or an in-line mixing valve in the hot supply for baths on new installations. I dont know how long this has been the case for. Tim -- Please don't feed the trolls |
strange hot water
On 03/08/2020 17:45, Tim+ wrote:
John Rumm wrote: On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. They may be a Thermostatic mixing valve inline with the bath hot tap. In Scotland its a legal requirement to fit either a thermostatic mixer or an in-line mixing valve in the hot supply for baths on new installations. I dont know how long this has been the case for. Tim I see that ...... |
strange hot water
Or go back to an immersion heater and a tank.
Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "No Name" wrote in message ... On 03/08/2020 09:22, Tricky Dicky wrote: That's one of the issues with Combi's, the flow of water can be greater than the boilers ability to heat it. The only remedy is to slow the rate of the water and fill the bath slower but then catch 22 comes in to play in that by the time you have filled the bath it has gone tepid anyway. Richar or either: The combi boiler is undersized. to fill a bath, you are looking at a 38kW boiler. the DHW FPHE is scaled up affecting thermal energy transfer from the boiler internal water to the incoming cold mains water (DHW FPHE is Domestic Hot Water Flat Plate Heat Exchanger) S. |
strange hot water
Talking about heat, is there a temperature that hot water can be that is the
hottest safe temp, ie it might hurt if you put your hand under it, but not scold you, as it seems to me for safety whatever you are filling the bath with that is the highest temp you want it to come out at. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! "Vir Campestris" wrote in message ... On 03/08/2020 12:24, Jim GM4DHJ ... wrote: all I can think is that the bath tap has a MUCH greater flow rate than the sink and whb....doesn't seem like that though .... Stick a bucket (or bowl, or other reasonable size container) under the taps & measure them. Andy |
strange hot water
On 03/08/2020 15:20, Jim GM4DHJ ... wrote:
On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Â*Â*Â* Paul well it is open to the elements under the van ....but wouldn't have thought right panic over....... let the bath tap run full then turned it right back and I got a bath full of very hot water I could just about sit in.....just didn't realise the flow was so great from a bath tap...silly me.....great bath like brand new the previous owner obviously didn't use it....kind of a sitz bath a wee bit short in length but very nice....what a bargain this van was...think it was top of the line and only one with a bath.... https://www.youtube.com/watch?v=pQL7yEaoi3g |
strange hot water
On 03/08/2020 20:32, Brian Gaff (Sofa) wrote:
Talking about heat, is there a temperature that hot water can be that is the hottest safe temp, ie it might hurt if you put your hand under it, but not scold you, as it seems to me for safety whatever you are filling the bath with that is the highest temp you want it to come out at. Brian good idea......much higher flow rate indeed.....never a problem at home with a combi |
strange hot water
On 03/08/2020 20:42, Jim GM4DHJ ... wrote:
On 03/08/2020 15:20, Jim GM4DHJ ... wrote: On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Â*Â*Â* Paul well it is open to the elements under the van ....but wouldn't have thought right panic over....... let the bath tap run full then turned it right back and I got a bath full of very hot water I could just about sit in.....just didn't realise the flow was so great from a bath tap...silly me.....great bath like brand new the previous owner obviously didn't use it....kind of a sitz bath a wee bit short in length but very nice....what a bargain this van was...think it was top of the line and only one with a bath.... https://www.youtube.com/watch?v=pQL7yEaoi3g not bad for five and a half cash ..... |
strange hot water
On 03/08/2020 20:42, Jim GM4DHJ ... wrote:
On 03/08/2020 15:20, Jim GM4DHJ ... wrote: On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Â*Â*Â* Paul well it is open to the elements under the van ....but wouldn't have thought right panic over....... let the bath tap run full then turned it right back and I got a bath full of very hot water I could just about sit in.....just didn't realise the flow was so great from a bath tap...silly me.....great bath like brand new the previous owner obviously didn't use it....kind of a sitz bath a wee bit short in length but very nice....what a bargain this van was...think it was top of the line and only one with a bath.... https://www.youtube.com/watch?v=pQL7yEaoi3g "Includes site fees for 2012" That's useful. Do they only come with that ****ty coloured settee and curtains, or is that a reflection of the tastes of a typical 'owner' ?. |
strange hot water
On 04/08/2020 17:24, Andrew wrote:
On 03/08/2020 20:42, Jim GM4DHJ ... wrote: On 03/08/2020 15:20, Jim GM4DHJ ... wrote: On 03/08/2020 13:08, Paul wrote: Jim GM4DHJ ... wrote: On 03/08/2020 08:10, Jim GM4DHJ ... wrote: just down at the static van and I thought I would take a bath rather than a shower.....anyway water at the sink is scalding ....shower with the mixer up the right way up now is working well...the whb is pretty hot but the bath water is temped at the most... anybody got any idea why this is the case ? ....all about the same distance from the Worcester combi.....whb and bath have separate hot and cold taps....sink is a mixer it's a Worcester 24i propane....sink scalding at full flow rate......whb scalding at full flow rate...bath tepid at full flow rate...not too bad at slow flow rate.....just have to live with it.....no water temp adjustment on the boiler...thanks all except tim ..... Hot water is being diluted by cold somewhere. Before it gets to the control you're using. Â*Â*Â* Paul well it is open to the elements under the van ....but wouldn't have thought right panic over....... let the bath tap run full then turned it right back and I got a bath full of very hot water I could just about sit in.....just didn't realise the flow was so great from a bath tap...silly me.....great bath like brand new the previous owner obviously didn't use it....kind of a sitz bath a wee bit short in length but very nice....what a bargain this van was...think it was top of the line and only one with a bath.... https://www.youtube.com/watch?v=pQL7yEaoi3g "Includes site fees for 2012" That's useful. Do they only come with that ****ty coloured settee and curtains, or is that a reflection of the tastes of a typical 'owner' ?. covered up the couch and changed all the drapes I'll do a video if you want.... |
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