Firstly, apologies if this has been asked before and/or I'm asking in the
Anyway, I'd be grateful if there's anyone who could tell me why my hot water
temperature is lower when I have my central heating on than if not. I
recently had some rewiring and as far as I can remember before the wiring it
was the same temperature whether I had the heating on or not. However, the
thermostat, boiler, pump etc all appear do the right things at the right
time (ie pump comes on when thermostat tells it to, boiler comes on when
requested, etc). Maybe its to be expected if both are on - the boiler can
only do so much ?
Any help gratefully received.
Here are a couple of possibilities.
1) The HW cylinder is not getting as much heat from the boiler when the
CH is on and so is not heating up as quickly. - This is a balancing
issue between the radiators and the cylinder.
2) The boiler is so under powered it is not gettting enough to its own
internal target temperature when the CH is on.
Ed Sirett - Property maintainer and registered gas fitter.
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