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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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Central heating, upstairs too hot
Hi,
Can someone tell me what the best solution is to get a balanced temperature in my house. I have a wireless thermostat programmer to control the CH. If I have it downstairs in the living room, it is too hot upstairs. If I move it upstairs it is too cold downstairs. To solve this, should I simply adjust the control valves on the upstairs radiators, or should I install control valves which have thermostats on the upstairs radiators? I recently changed my system from basic on/off timer without any thermostats, to "c plan" (gravity fed cylinder with thermostat on cylinder and valve to cut off gravity fed loop, programmer for hot water control, pump on CH circuit, and wireless thermostat programmer for CH control). Cheers, EF |
#2
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"EF" wrote in message om... Hi, Can someone tell me what the best solution is to get a balanced temperature in my house. I have a wireless thermostat programmer to control the CH. If I have it downstairs in the living room, it is too hot upstairs. If I move it upstairs it is too cold downstairs. To solve this, should I simply adjust the control valves on the upstairs radiators, or should I install control valves which have thermostats on the upstairs radiators? I recently changed my system from basic on/off timer without any thermostats, to "c plan" (gravity fed cylinder with thermostat on cylinder and valve to cut off gravity fed loop, programmer for hot water control, pump on CH circuit, and wireless thermostat programmer for CH control). Cheers, EF Theromstatic valves upstairs make sure you put them on the feed (hot) side of the rad. MikeS |
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#4
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In an earlier contribution to this discussion,
EF wrote: Hi, Can someone tell me what the best solution is to get a balanced temperature in my house. I have a wireless thermostat programmer to control the CH. If I have it downstairs in the living room, it is too hot upstairs. If I move it upstairs it is too cold downstairs. To solve this, should I simply adjust the control valves on the upstairs radiators, or should I install control valves which have thermostats on the upstairs radiators? I recently changed my system from basic on/off timer without any thermostats, to "c plan" (gravity fed cylinder with thermostat on cylinder and valve to cut off gravity fed loop, programmer for hot water control, pump on CH circuit, and wireless thermostat programmer for CH control). Cheers, EF The first thing is do is to balance the system in order to get equal temperature drops across all radiators. There is a FAQ all about this, but basically it means partially closing the lockshield valves on the hottest rads. If, when the system is in balance, some rooms are *still* hotter than others, it indicates that the hotter rooms have got over-sized ** radiators relative to the heat losses. The best way to deal with this is to fit TRVs on these rads, which will turn the rads off when the room gets up to temperature. ** OR, that the coolest rooms have under-sized rads - but you may not find out which until the middle of winter! -- Cheers, Set Square ______ Please reply to newsgroup. Reply address is invalid. |
#6
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"EF" wrote in message om... Hi, Can someone tell me what the best solution is to get a balanced temperature in my house. I have a wireless thermostat programmer to control the CH. If I have it downstairs in the living room, it is too hot upstairs. If I move it upstairs it is too cold downstairs. To solve this, should I simply adjust the control valves on the upstairs radiators, or should I install control valves which have thermostats on the upstairs radiators? I recently changed my system from basic on/off timer without any thermostats, to "c plan" (gravity fed cylinder with thermostat on cylinder and valve to cut off gravity fed loop, programmer for hot water control, pump on CH circuit, and wireless thermostat programmer for CH control). Cheers, EF EF, One can calculate the output of a radiator if you can accurately measure the Temperature drop across the radiator and take account of ambient air temperature using a formula (which I can't remember as it was some twenty years ago since I designed my and my friend systems). You can find out about how to measure the output of a radiator at heating and ventilation news group ( or this one if there are any Heating and ventilation engineers lurking). Some electronic volt meters can measure temperature accurately but one has to have a probe to use it, I got mine from Halfords. MikeS |
#7
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The first thing is do is to balance the system in order to get equal
temperature drops across all radiators. There is a FAQ all about this, but basically it means partially closing the lockshield valves on the hottest rads. If, when the system is in balance, some rooms are *still* hotter than others, it indicates that the hotter rooms have got over-sized ** radiators relative to the heat losses. The best way to deal with this is to fit TRVs on these rads, which will turn the rads off when the room gets up to temperature. ** OR, that the coolest rooms have under-sized rads - but you may not find out which until the middle of winter! Thank you all for your advice. I shall read the balancing faq and go and buy an infrared thermometer. If that doesnt fix it I'll fit some TRVs. Thanks, EF |
#8
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"EF" wrote in message om... Hi, Can someone tell me what the best solution is to get a balanced temperature in my house. I have a wireless thermostat programmer to control the CH. If I have it downstairs in the living room, it is too hot upstairs. If I move it upstairs it is too cold downstairs. To solve this, should I simply adjust the control valves on the upstairs radiators, or should I install control valves which have thermostats on the upstairs radiators? I recently changed my system from basic on/off timer without any thermostats, to "c plan" (gravity fed cylinder with thermostat on cylinder and valve to cut off gravity fed loop, programmer for hot water control, pump on CH circuit, and wireless thermostat programmer for CH control). Cheers, EF See this site http://www.diyfaq.org.uk/plumbing/rad-balance.html MikeS |
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