On Tue, 12 Dec 2006 14:43:43 +0000, Grunff wrote:

|JoeJoe wrote:
| I have a brand new combi running 18 radiators + 1 shower in my house. No
| complaints there.
|
| Problem is that the radiators seem to be getting very cold very quickly as
| soon as the boiler is switched off. My suspicion is that the cause could be
| because some of the pipes (copper) hat feed the downstairs radiators are not
| insulated. I have a 1m high space under the house, where the pipes are
| located, and it is freezing cold and drafty there.
|
| Does it make sense?
|
|Not really. Once the boiler shuts off, there is no more heat input into
|the system. The various components will lose heat to the surroundings.
|The rate of this heat loss will depend on how good each component is at
|losing heat. Radiators are, by design, good at losing heat.
|
|
| Will it be a good idea to insulate the pipes? It
| shouldn't be a very big job.
|
|Certainly not a bad idea to insulate them, but it won't make a
|measurable difference to how quickly your radiators lose heat.

But will make a huge difference to your Gas bill.
--
Dave Fawthrop dave hyphenologist co uk Google Groups is IME the *worst*
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