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Last seen: Nov 3, 2025
Question, the HP seems to be cycling off before the thermostat says the room is heated up. Is this normal? Perhaps the return water is warm enough tha...
@morgan 45 at -3, 20 at 20?
Curve adjusted down again last night - we are now at; Max: 50 @ -4 degrees Min: 25 @ 15 degrees I might leave these alone now and track for the...
@derek-m to be fair they did ask me where I wanted it. As I was using a thermostat I just said put it there (and pointed to the place). I think I do h...
@justinsb exactly where mine is - directly above the solar inverter which gets very very warm. I'm kicking myself for not getting them to punch it thr...
Another day, another filter clean. Barely anything in there today
@kev-m maybe you want to set your thermostats to 22°. That way you won't suddenly wake up sweating and you'll be able to see what conditions your heat...
@justinsb it's not the best time to rely on solar ... lol I'd very much consider getting a hybrid inverter if you are getting solar installed. It'll...
@justinsb yes, but how many KW of gas did you use? That's the consideration
@kev-m that's an issue to cross when I get there lol. But it's more about trying to take cop out of the theoretical and ground it in reality so you ca...
Some feedback for everyone in two charts. As a note, I've created my own measure of efficiency beyond COP. At the moment its called COP-A (or COP per ...
@heacol I have a plumber looking at my system in terms of the pump. I'm sure he would be open to understanding the changes if we could make them rever...
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Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Thanks for the update. Vaillant is a good choice, their...
By Batpred , 2 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 9 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 2 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 2 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 4 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 5 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago


