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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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#1
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Damp House
I seem to be running into all sorts of issues . This started with my storage
heater having lamped the electric and I switched it off. I know its been damp outside and I know I have switched all heating off but I cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. I have one room that smells of garlic! Mustiness I suppose. I sure its damp. I can feel its damp in the air. All my carpets are damp when you walk on them - yet I cant find the cause. I've looked for leaks, gutters, floorboards. Signs of mould are now beginning to appear on walls, black bitty stuff. ( those which have an outside surface) . Wallpaper is feeling damp and it is peeling in a couple of corners. Never had that before ( except in the bathroom - always have a condensation problem there). I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. |
#2
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Damp House
"endymion" wrote in message ... I seem to be running into all sorts of issues . This started with my storage heater having lamped the electric and I switched it off. I know its been damp outside and I know I have switched all heating off but I cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. I have one room that smells of garlic! Mustiness I suppose. I sure its damp. I can feel its damp in the air. All my carpets are damp when you walk on them - yet I cant find the cause. I've looked for leaks, gutters, floorboards. Signs of mould are now beginning to appear on walls, black bitty stuff. ( those which have an outside surface) . Wallpaper is feeling damp and it is peeling in a couple of corners. Never had that before ( except in the bathroom - always have a condensation problem there). I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. All condensation problems are caused by lack of heat and/or ventilation, do you have the windows open or have proper vents? Are you cooking a lot without turning the extractor on? Anyway, pop down Argos and buy a dehumidifier (about £70) and dry it out before the mould spreads, if you can't open the windows. |
#3
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Damp House
endymion wrote:
I seem to be running into all sorts of issues . This started with my storage heater having lamped the electric and I switched it off. I know its been damp outside and I know I have switched all heating off but I cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. I have one room that smells of garlic! Mustiness I suppose. I sure its damp. I can feel its damp in the air. All my carpets are damp when you walk on them - yet I cant find the cause. I've looked for leaks, gutters, floorboards. Signs of mould are now beginning to appear on walls, black bitty stuff. ( those which have an outside surface) . Wallpaper is feeling damp and it is peeling in a couple of corners. Never had that before ( except in the bathroom - always have a condensation problem there). I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. Seems to me it hasn't been just the usual summer 'damp outside', but extraordinarily damp - and with little relief. (Currently 17.9C and 72.5% RH - but has been consistently 98% for hour after hour many days.) We open windows a lot. Even when it seems positively wet outside, some interior moisture seems to disappear out of them. If possible, open windows on both sides of the house to encourage through ventilation. Do you close interior doors? If so, don't. Other than bathroom, we almost never close them. Could dampness from your bathroom be spreading round the house? Our bathroom is usually one of the driest rooms in the house - other than when actually washing/bathing. I think you really have to go to town here. Maybe some humidistat-controlled fan (often discussed here)? What about kitchen? Quite a lot of water can be added by cooking. Do you have anything like an aquarium? Do you do lots of steam ironing? You could try a dehumidifier - but they cost to buy/hire and to run, and IMHO they are only really sensible for acute use. Maybe your chronic problem has become acute? -- Rod Hypothyroidism is a seriously debilitating condition with an insidious onset. Although common it frequently goes undiagnosed. www.thyromind.info www.thyroiduk.org www.altsupportthyroid.org |
#4
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Damp House
On Sat, 30 Aug 2008 07:59:52 +0100, "endymion"
wrote: I seem to be running into all sorts of issues . This started with my storage heater having lamped the electric and I switched it off. I know its been damp outside and I know I have switched all heating off but I cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. I have one room that smells of garlic! Mustiness I suppose. I sure its damp. I can feel its damp in the air. All my carpets are damp when you walk on them - yet I cant find the cause. I've looked for leaks, gutters, floorboards. Signs of mould are now beginning to appear on walls, black bitty stuff. ( those which have an outside surface) . Wallpaper is feeling damp and it is peeling in a couple of corners. Never had that before ( except in the bathroom - always have a condensation problem there). I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. Make sure the dampproof course is exposed all around the bungalow and that any air bricks are clear. Floors can go very quickly if not properly ventilated. |
#5
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Damp House
On Sat, 30 Aug 2008 07:59:52 +0100, endymion wrote:
I know its been damp outside and I know I have switched all heating off but cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. In the same house? I have a very vague memory that you have only moved into this place in the last year but could be wrong with that. I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. I doubt it was orginally constructed with double glazing or roof insulation. With the replacement windows there is now not enough ventilation to remove the warm damp air inside. Open the windows or the trickle vents if they exist. Use any extractor fans in the kitchen and/or bathroom to remove the exccess moisture, don't dry clothes inside on racks. Lack of heat inside will mean the walls will cool, if they go below the dewpoint of the air inside you will get condensation aka damp. You can lower the dewpoint of the air by making it warmer or by removing moisture. -- Cheers Dave. |
#6
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Damp House
In article ,
"dennis@home" writes: "endymion" wrote in message ... I seem to be running into all sorts of issues . This started with my storage heater having lamped the electric and I switched it off. I know its been damp outside and I know I have switched all heating off but I cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. I have one room that smells of garlic! Mustiness I suppose. I sure its damp. I can feel its damp in the air. All my carpets are damp when you walk on them - yet I cant find the cause. I've looked for leaks, gutters, floorboards. Signs of mould are now beginning to appear on walls, black bitty stuff. ( those which have an outside surface) . Wallpaper is feeling damp and it is peeling in a couple of corners. Never had that before ( except in the bathroom - always have a condensation problem there). I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. All condensation problems are caused by lack of heat and/or ventilation, do you have the windows open or have proper vents? Are you cooking a lot without turning the extractor on? Anyway, pop down Argos and buy a dehumidifier (about £70) and dry it out before the mould spreads, if you can't open the windows. I would find the source of the problem first. Dehumidifiers can easily damage timber such as floorboards in a building. Have you got a solid concrete floor, or a suspended timber floor? I would take a peek under the floor coverings, and in the case of a suspended timber floor, under the floor. If you are on a water meter, check it's not spinning round when you aren't expecting to be using water, e.g. due to a leak somewhere. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#7
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Damp House
In article ,
endymion wrote: I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. Have the windows built in ventilators? Earlier designs did not - all new ones have to have. If they have, are they all open? Does your household do lots of washing and drying with the windows always closed? Lots of showering or bathing? Is the damp worse in some rooms than others? Thing is most human activities produce moisture - even just breathing. Some houses of that era were pretty well sealed to external air movement. Especially if they have solid floors. -- *Why do they put Braille on the drive-through bank machines? Dave Plowman London SW To e-mail, change noise into sound. |
#8
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Damp House
On Sat, 30 Aug 2008 08:19:27 +0100, dennis@home wrote:
Anyway, pop down Argos and buy a dehumidifier (about £70) and dry it out before the mould spreads, if you can't open the windows. I'm glad you put the "if you can't open the windows" rider on that. Air circulation within the building, a liitle ventilation (forced in the kitchen and bathroom when in use and for 30 mins to an hour afterwards(*)) will almost certainly cure the problem. (*) Timed or fit an extrator fan with a built in humidistat. But note that a humidistat controlled fan might trigger in the early hours when the air in the house cools and the RH goes up. -- Cheers Dave. |
#9
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Damp House
Dave Liquorice wrote:
On Sat, 30 Aug 2008 07:59:52 +0100, endymion wrote: I know its been damp outside and I know I have switched all heating off but cant account for the dampness I am now getting. I have had the heating off before in summer and not had this. In the same house? I have a very vague memory that you have only moved into this place in the last year but could be wrong with that. I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. I doubt it was orginally constructed with double glazing or roof insulation. With the replacement windows there is now not enough ventilation to remove the warm damp air inside. Open the windows or the trickle vents if they exist. Use any extractor fans in the kitchen and/or bathroom to remove the exccess moisture, don't dry clothes inside on racks. Lack of heat inside will mean the walls will cool, if they go below the dewpoint of the air inside you will get condensation aka damp. You can lower the dewpoint of the air by making it warmer or by removing moisture. Getting these problems in August suggests a water leak. I know it's been wet, but it hasn't been cold. Washing still dries on the line despite the high RH levels. |
#10
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Damp House
endymion wrote:
I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. drying clothes indoors? Made that mistake myself. De-humidifier sorted out both the accomulated moisture and clothes drying. |
#11
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Damp House
In article ,
www.GymRatZ.co.uk wrote: I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. drying clothes indoors? Made that mistake myself. I always dry clothes indoors. But since pretty well every room in this house - including the kitchen - has a working chimney and trickle vents on any double glazing it's pretty well ventilated. Of course I'm not doing huge amounts of washing like those with a young family might. -- *OK, who stopped payment on my reality check? Dave Plowman London SW To e-mail, change noise into sound. |
#12
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Rod saying something like: Seems to me it hasn't been just the usual summer 'damp outside', but extraordinarily damp - and with little relief. (Currently 17.9C and 72.5% RH - but has been consistently 98% for hour after hour many days.) I've noticed it too, this year. I've been paying more attention to indoor humidity levels because I have a small collection of lenses and cameras I've acquired over the last 12 months and have to keep in relatively low humidity. I've not seen 98%, but plenty of days in the 80%s, although that's reading a cheapy greenhouse humidity meter (which surprisingly tallies very closely with daily Met Office figures for my area). I'm now looking at heating the cupboard the stuff is kept in - just a 20W tubular heater would do it, I reckon. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#13
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Damp House
"Grimly Curmudgeon" wrote in message ... I'm now looking at heating the cupboard the stuff is kept in - just a 20W tubular heater would do it, I reckon. 20w dehumidifier would be better. |
#14
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Damp House
Grimly Curmudgeon wrote:
We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember Rod saying something like: Seems to me it hasn't been just the usual summer 'damp outside', but extraordinarily damp - and with little relief. (Currently 17.9C and 72.5% RH - but has been consistently 98% for hour after hour many days.) I've noticed it too, this year. I've been paying more attention to indoor humidity levels because I have a small collection of lenses and cameras I've acquired over the last 12 months and have to keep in relatively low humidity. I've not seen 98%, but plenty of days in the 80%s, although that's reading a cheapy greenhouse humidity meter (which surprisingly tallies very closely with daily Met Office figures for my area). I'm now looking at heating the cupboard the stuff is kept in - just a 20W tubular heater would do it, I reckon. My awareness has greatly increased since getting a (very) cheap Tchibo indoor/outdoor thing several years ago. I upgraded to an Oregon with three remotes last year - that seems to agree with Met Office, feeling and reality (i.e. when it is ****ing down it goes to 98% at times - the max. it can read). Would like a *good* Davies or something but priorities mean that isn't going to happen for a while. 63% at 23.9 on one side of the house at the moment. Seems many years the ground dries out. Along the road there is a winter bourne (apparently a stream that normally runs only in winter). For years it has never been more than a dribble and much of the summer its bed was like concrete. People seemed ot think it would never run again. But this summer it has been full of reasonably fast flowing water. I guess when the ground water is so high, any sun will tend to evaporate that and plants will transpire at a rate of knots. All of which will build up and produce the hazy, sticky, humid days we have been having. -- Rod Hypothyroidism is a seriously debilitating condition with an insidious onset. Although common it frequently goes undiagnosed. www.thyromind.info www.thyroiduk.org www.altsupportthyroid.org |
#15
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Damp House
"Dave Plowman (News)" wrote in message ... In article , endymion wrote: I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. Thanks to everyone for their replies. Today the sun has been shining and it is dry - and they house is dryer too. So it must be condensation from somewhere. Have the windows built in ventilators? Earlier designs did not - all new ones have to have. If they have, are they all open? There are earlier design windows. In fact I suspect they may have been put in back in the 1970's/80's when double glazing was a new thing. There are no ventilators . I have not had the windows open as it was so cold . So possibly there is no air movement here. The house could be well sealed. Does your household do lots of washing and drying with the windows always closed? Lots of showering or bathing? Is the damp worse in some rooms than others? Showers certainly we have. I havent exactly washed a lot in the last two weeks ( that makes me sound dirty but its just I knew I couldnt dry it easily. Do sometimes use a tumble dryer ( but its a new washer dryer and the dryer is a condenser). The damp certainly seems to concentrate. Having looked further this morning. Its in one bedroom I dont use except as a study ( thats the garlic smelling room) . Its in the kitchen. Bathroom is always bad and I always have a window open in there. Its in the sitting room too. The walls affected are the ones which are external Mostly the North and NE ones but I had started to feel dampness in the hal and main bedroom Its the carpet in the sitting room that seems to be taking the damp if you can understand that. I looked under the carpet and underlay and cant see anything on the floorboards/ void. The floors are suspended. Wooden ones. |
#16
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Damp House
"dennis@home" wrote in message ... "endymion" wrote in message ... I am out of ideas for the cause. Anyone any experiences? House is double glazed except for two windows, and roof insulated. Its a brick built detached bungalow circa 1958 build. All condensation problems are caused by lack of heat and/or ventilation, do you have the windows open or have proper vents? The windows have been closed because its been so cold. The windows do not have vents of any kind. Are you cooking a lot without turning the extractor on? I dont have an extractor fan in my kitchen at all. I know cooking does sometimes affect the kitchen ( sundays mostly) but I have recently had a new cooker ( two weeks ago) which is fan assisted in the oven. I cant see that making a difference though. But it does coincide with the damp in the kitchen wall ( the damp the is on the opposite wall to the cooker - the wall concerned is the exterior wall to the house. I have been cleaning the mould off the wals but its spreading in bits. - like its flying in the air and landing in odd places. |
#17
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Damp House
"Andrew Gabriel" wrote in message ... In article , "dennis@home" writes: "endymion" wrote in message ... I seem to be running into all sorts of issues . This started with my Have you got a solid concrete floor, or a suspended timber floor? I would take a peek under the floor coverings, and in the case of a suspended timber floor, under the floor. The floors are all suspended and timber. We dont have a cellar . We do have a void under the house. I have had carpets etc. up this morning. The floors ( wood) are dry. Its the carpets/ tiles that are getting damp/ wet. I have to say wet. They feel wet to walk on, as if I have had a carpet cleaner out and shampooed them over ( I have not) If you are on a water meter, check it's not spinning round when you aren't expecting to be using water, e.g. due to a leak somewhere. I am not on a water meter but we did have a water leak a while back . Husband fixed it and put in new pipe work. The water doesnt come under the house at all. It comes in at the kitchen and travels through to the bathroom. But there is no sign of a leak this morning. Its looking like a bad case of condensation I think isnt it? |
#18
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Damp House
"Dave Liquorice" wrote in message ll.net... On Sat, 30 Aug 2008 08:19:27 +0100, dennis@home wrote: Anyway, pop down Argos and buy a dehumidifier (about £70) and dry it out before the mould spreads, if you can't open the windows. I'm glad you put the "if you can't open the windows" rider on that. Air circulation within the building, a liitle ventilation (forced in the kitchen and bathroom when in use and for 30 mins to an hour afterwards(*)) will almost certainly cure the problem. (*) Timed or fit an extrator fan with a built in humidistat. But note that a humidistat controlled fan might trigger in the early hours when the air in the house cools and the RH goes up. I have never used a de humidifier. I have to say the thought worries me although I am not sure why. |
#19
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Damp House
"stuart noble" wrote in message ... Dave Liquorice wrote: I doubt it was orginally constructed with double glazing or roof insulation. With the replacement windows there is now not enough ventilation to remove the warm damp air inside. Open the windows or the trickle vents if they exist. Use any extractor fans in the kitchen and/or bathroom to remove the exccess moisture, don't dry clothes inside on racks. Lack of heat inside will mean the walls will cool, if they go below the dewpoint of the air inside you will get condensation aka damp. You can lower the dewpoint of the air by making it warmer or by removing moisture. Getting these problems in August suggests a water leak. I know it's been wet, but it hasn't been cold. Washing still dries on the line despite the high RH levels. I know some parts of the country have had much better weather than us. Its been very cold here as well as wet. Raining almost permanently and nothing d rying out. I have had all the windows closed. I opened them today. Have asked hubby to investigate fans in kitchen and bathroom. He has often said we need a fan in the bathroom, just never done it. I don't know if the new cooker is making a difference in the kitchen? But the sitting room and main bedroom are a new issue and a mystery. |
#20
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Damp House
The message
from "endymion" contains these words: I have never used a de humidifier. I have to say the thought worries me although I am not sure why. Can't imagine why it should worry you. I have one in my archive room in a detached outbuilding. On 24/365 (on a humidistat, of course) but not plumbed in. This summer it's taken FAR more moisture out of the air than ever before. These things do work. |
#21
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "dennis@home" saying something like: I'm now looking at heating the cupboard the stuff is kept in - just a 20W tubular heater would do it, I reckon. 20w dehumidifier would be better. Hah. I'd need a bigger cupboard Not a bad idea, actually. Only the lenses and the better cameras are kept in the small cupboard (which is really a set of office drawers) and if I were to keep all the kit together it would fill a small closet / cupboard with room for a D-H. Hmm... an old wardrobe would be a starting point. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#22
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Rod saying something like: i.e. when it is ****ing down it goes to 98% at times - the max. it can read). Ah right - outside; all is clear. 63% at 23.9 on one side of the house at the moment. Been 23C and 72% here all day - indoors. Seems many years the ground dries out. Along the road there is a winter bourne (apparently a stream that normally runs only in winter). For years it has never been more than a dribble and much of the summer its bed was like concrete. People seemed ot think it would never run again. But this summer it has been full of reasonably fast flowing water. I guess when the ground water is so high, any sun will tend to evaporate that and plants will transpire at a rate of knots. All of which will build up and produce the hazy, sticky, humid days we have been having. It's amazing the difference the transpiration of plants makes to the ground - an area I knocked the grass and weeds from a few months ago became quite sodden, even allowing for the extra rainfall, as last year the same ground in the same weather wasn't anything like as wet. There's huge amounts of water carried up and away like that. Of course, in a wider sense, there's all the extra land drainage which doesn't give the soil much of a chance to absorb the extra water and it gets channeled off into watercourses to flood the unlucky sods downstream. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#23
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Damp House
Appin wrote:
The message from "endymion" contains these words: I have never used a de humidifier. I have to say the thought worries me although I am not sure why. Can't imagine why it should worry you. I have one in my archive room in a detached outbuilding. On 24/365 (on a humidistat, of course) but not plumbed in. This summer it's taken FAR more moisture out of the air than ever before. These things do work. Of course they work. The question is where they're getting the air from. Unless the area is sealed they're going to be pulling in air from elsewhere, possibly from outside. |
#24
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"stuart noble" wrote in message ... Appin wrote: The message from "endymion" contains these words: I have never used a de humidifier. I have to say the thought worries me although I am not sure why. Can't imagine why it should worry you. I have one in my archive room in a detached outbuilding. On 24/365 (on a humidistat, of course) but not plumbed in. This summer it's taken FAR more moisture out of the air than ever before. These things do work. Of course they work. The question is where they're getting the air from. Unless the area is sealed they're going to be pulling in air from elsewhere, possibly from outside. What? They take air in one side and pass it out the other. In the middle it goes over cold coils on which water condenses. |
#25
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "newshound" saying something like: Of course they work. The question is where they're getting the air from. Unless the area is sealed they're going to be pulling in air from elsewhere, possibly from outside. What? They take air in one side and pass it out the other. In the middle it goes over cold coils on which water condenses. It raises a point - will moist air from outside infiltrate a drier area? I appreciate the room air will be circulated throught the DH, but will it attract moisture from outside via the normal air leaks in windows and doors? -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#26
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Damp House
"Grimly Curmudgeon" wrote in message ... We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "newshound" saying something like: Of course they work. The question is where they're getting the air from. Unless the area is sealed they're going to be pulling in air from elsewhere, possibly from outside. What? They take air in one side and pass it out the other. In the middle it goes over cold coils on which water condenses. It raises a point - will moist air from outside infiltrate a drier area? I appreciate the room air will be circulated throught the DH, but will it attract moisture from outside via the normal air leaks in windows and doors? It won't attract moisture.. it will remove the moisture from draughts into the drying area. |
#27
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Grimly Curmudgeon wrote:
We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "newshound" saying something like: Of course they work. The question is where they're getting the air from. Unless the area is sealed they're going to be pulling in air from elsewhere, possibly from outside. What? They take air in one side and pass it out the other. In the middle it goes over cold coils on which water condenses. It raises a point - will moist air from outside infiltrate a drier area? I appreciate the room air will be circulated throught the DH, but will it attract moisture from outside via the normal air leaks in windows and doors? If the leaks are small, the DH will cope. If not, you'll be dehumidifying the great outdoors. You can't really have ventilation and dehumidification. |
#28
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "dennis@home" saying something like: It raises a point - will moist air from outside infiltrate a drier area? I appreciate the room air will be circulated throught the DH, but will it attract moisture from outside via the normal air leaks in windows and doors? It won't attract moisture.. it will remove the moisture from draughts into the drying area. Yes, but will humid air tend to displace dry air? I just wonder how important room sealing is - if not, then I need have no particular worries, if so, I'd better attend to it. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#29
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We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember stuart noble saying something like: If the leaks are small, the DH will cope. If not, you'll be dehumidifying the great outdoors. You can't really have ventilation and dehumidification. If there's a through flow of outside air, it would definitely be a waste of time and money, true. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#30
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On Sat, 30 Aug 2008 17:30:49 +0100, endymion wrote:
I dont have an extractor fan in my kitchen at all. I know cooking does sometimes affect the kitchen ( sundays mostly) but I have recently had a new cooker ( two weeks ago) which is fan assisted in the oven. I cant see that making a difference though. Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... But it does coincide with the damp in the kitchen wall ( the damp the is on the opposite wall to the cooker - the wall concerned is the exterior wall to the house. Exterior walls will be colder than interior and it happening at the same time as the cooker change... I have been cleaning the mould off the wals but its spreading in bits. - like its flying in the air and landing in odd places. Thats what mould does, spores in the air. Not a great deal you can do TBH they are everywhere all the time just waiting to find a suitable habitat to grow. -- Cheers Dave. |
#31
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On Sat, 30 Aug 2008 21:06:49 +0100, Grimly Curmudgeon wrote:
I'm now looking at heating the cupboard the stuff is kept in - just a 20W tubular heater would do it, I reckon. 20w dehumidifier would be better. Hah. I'd need a bigger cupboard Not a bad idea, actually. If you can get such a tiny dehumidfier. B-) Anyway is the damage caused by the water vapour in the air or just the damp/condesation if the objects get close or below the dewpoint? If the latter just keeping 'em warm with a low power heater (15W tungsten light bulb?) will do the trick but if it's the absolute humidty in the air then you are into sealed cupboards and a control system to regulate the humidity both up and down. -- Cheers Dave. |
#32
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Damp House
On Sat, 30 Aug 2008 17:37:39 +0100, endymion wrote:
(*) Timed or fit an extrator fan with a built in humidistat. But note that a humidistat controlled fan might trigger in the early hours when the air in the house cools and the RH goes up. I have never used a de humidifier. I have to say the thought worries me although I am not sure why. Bigger electricity bill? You shouldn't need to use a dehumidfier if the air is being changed properly and really warm wet stuff from cooking and bathing is extracted. A humidistat controlled fan is just an extractor fan that comes on when the humidity of the air is above a preset amount, it goes off when below. This isn't a dehumidfier they draw air through themselves and over a cooled surface to condense and collect any water vapour in that air. -- Cheers Dave. |
#33
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"Dave Liquorice" wrote in message ll.net... On Sat, 30 Aug 2008 17:30:49 +0100, endymion wrote: I dont have an extractor fan in my kitchen at all. I know cooking does sometimes affect the kitchen ( sundays mostly) but I have recently had a new cooker ( two weeks ago) which is fan assisted in the oven. I cant see that making a difference though. Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... ??? My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. |
#34
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Damp House
On Tue, 2 Sep 2008 09:28:45 UTC, "dennis@home"
wrote: "Dave Liquorice" wrote in message ll.net... On Sat, 30 Aug 2008 17:30:49 +0100, endymion wrote: I dont have an extractor fan in my kitchen at all. I know cooking does sometimes affect the kitchen ( sundays mostly) but I have recently had a new cooker ( two weeks ago) which is fan assisted in the oven. I cant see that making a difference though. Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... ??? My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. Wow! A hermetically sealed oven... -- The information contained in this post is copyright the poster, and specifically may not be published in, or used by http://www.diybanter.com |
#35
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Damp House
"Bob Eager" wrote in message ... On Tue, 2 Sep 2008 09:28:45 UTC, "dennis@home" wrote: "Dave Liquorice" wrote in message ll.net... On Sat, 30 Aug 2008 17:30:49 +0100, endymion wrote: I dont have an extractor fan in my kitchen at all. I know cooking does sometimes affect the kitchen ( sundays mostly) but I have recently had a new cooker ( two weeks ago) which is fan assisted in the oven. I cant see that making a difference though. Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... ??? My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. Wow! A hermetically sealed oven... It has a 1" vent, and the fan doesn't blow air through it. Do other people really have cr@p ovens, that leak like sieves? Mine wasn't exactly an expensive top of the range one. |
#36
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Damp House
On Tue, 2 Sep 2008 11:07:05 +0100, dennis@home wrote:
Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. Wow! A hermetically sealed oven... It has a 1" vent, and the fan doesn't blow air through it. I bet more air comes out of that hole with the fan on than off. Fan ovens are drier inside than a convection, that moisture must get out some how. -- Cheers Dave. |
#37
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In article et,
Dave Liquorice wrote: On Tue, 2 Sep 2008 11:07:05 +0100, dennis@home wrote: Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. Wow! A hermetically sealed oven... It has a 1" vent, and the fan doesn't blow air through it. I bet more air comes out of that hole with the fan on than off. Fan ovens are drier inside than a convection, that moisture must get out some how. My double oven Neff (both fan assisted) certainly blows out some air. -- *Thank you. We're all refreshed and challenged by your unique point of view Dave Plowman London SW To e-mail, change noise into sound. |
#38
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Damp House
On 02/09/2008 14:40, Huge wrote:
On 2008-09-02, Dave Plowman (News) wrote: My double oven Neff (both fan assisted) certainly blows out some air. It almost certainly has a second fan that circulates air between the inner and outer casing for cooling - my Neff oven does - and that's what you can feel. Indeed, the second fan stays on after use on mine, specifically to cool the oven, they recommend not leaving the door open to cool it faster, in case the escaping heat harms the seals. |
#39
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Damp House
We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Dave Liquorice" saying something like: Hah. I'd need a bigger cupboard Not a bad idea, actually. If you can get such a tiny dehumidfier. B-) Anyway is the damage caused by the water vapour in the air or just the damp/condesation if the objects get close or below the dewpoint? The former, really - it's fungus in lenses and cameras I'm trying to guard against. There's never any condensation, but fungal growth will be inhibited if RH is below 50% to the best of my knowledge. At the moment RH in the room is 70% and tends to range between 60% and 80%. If the latter just keeping 'em warm with a low power heater (15W tungsten light bulb?) will do the trick but if it's the absolute humidty in the air then you are into sealed cupboards and a control system to regulate the humidity both up and down. I've decided against trying to seal the room - too much hassle and it would be all for nought every time a door or window was opened out of necessity. So, a big cupboard is the thing - I have a wardrobe-sized shelving unit which I can enclose and keep relatively sealed, with a heater in the base of it. It'll be cheap enough to give it a go - got to be better than the current storage system, which is a drawer unit for the lenses and most imporant cameras - only prevented from getting damp by the drawers not being opened much. As a temporary measure I have plenty of plastic Tupperware-type containers for lens storage which I will use with silica gel packets to keep the RH low inside. Getting more silica gel packs locally is a problem - I've run out of the small stock I had acquired over the years and they have a finite life anyway. -- Dave GS850x2 XS650 SE6a "It's a moron working with power tools. How much more suspenseful can you get?" - House |
#40
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Damp House
"Dave Liquorice" wrote in message ll.net... On Tue, 2 Sep 2008 11:07:05 +0100, dennis@home wrote: Fan assisted to tend to blow more air out and be dryer inside than a convection oven. This extra mositure ends up in the room... My fan oven doesn't blow air out.. the fan only circulates the air. It would be a pretty stupid design that blows the air out after you have heated it. Wow! A hermetically sealed oven... It has a 1" vent, and the fan doesn't blow air through it. I bet more air comes out of that hole with the fan on than off. Fan ovens are drier inside than a convection, that moisture must get out some how. Funny, I find them more moist. I don't even need foil unless I am roasting something for hours. Are you sure you are talking about a fan convection oven and not something else? |
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