Last seen: Sep 13, 2025
I read another report which says that the changes in PD also include increasing max volume to 1.5cu m and allowing 2 heat pumps on detached houses. N...
The efficiency gain through weather compensation gets less at low flow temperatures, and is probably around 2% per C or less at 32 and you are already...
4 hours isn't very long, houses have a large heat capacity (ie energy stored in the fabric) and can therefore take a day or more to reach a steady tem...
Welcome to the forum, you will find that people here are very willing to help. To answer this properly we need to know a bit more eg what was the as...
Sensible IMHO, varying the target FT might give a clue!
OK I must admit Im a bit stumped. Reducing it to its basics, the heat pump does not appear to be reaching the flow temperature you have told it t...
OK. It does sound like its possibly the system not the heat pump, thats limiting the output, and since room temp has dropped then there quite possibl...
Radiator manufacturers generally provide either outputs at lower temperatures, an equation, or the 'exponent'. For radiators other than fan radiators...
A few questions might help point us in the right direction: Is the buffer tank plumbed 2 port or 4 port? Is there a secondary pump on the emitter ...
Not irrelevant, but you shouldn't be throttling all radiators just to increase delta t, that achieves nothing other than to make the pump work harder ...
I'm not sure what you mean by better. As a general principle you should be fully opening the valve on the radiator furthest away/last to heat up and ...
Interesting There is a discussion about this hereand the discussion is consistent with the measured AC potential. Since it's the IET it's pro...
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