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Last seen: Aug 16, 2026
@derek-m Good point!
@old_scientist Hi, yes I was comparing COP without taking the cycling into account.
@jml Hi Jordan, welcome to the forum. You sound like you have done a lot of research already and that your house is well suited to low temperature...
@toodles Well to me, it would depend on the deal I was getting, If the quote was substantially cheaper than others and it was take it or leave it, the...
@toodles absolutely, I, like you prefer 22.5C so my house is configured to achieve that where I need it. Its worth pointing out I suppose that if you ...
Its a fair point that rooms these days can be multifunctional although in terms of heat pump output and heat loss, it would only be an issue on a coup...
21C in the bedroom would be very warm , my wife would disown me! 18C is about average although many like it cooler! The sleep foundation say: The be...
@pie_eater Is it one of these models? If so they all seem to do much better than 3kW at -7C OAT. Where did you get that figure from? I had a quick...
@pie_eater "The Heat Geek cheat sheet estimates your heat loss to be between 4.4 and 8.8 kWMichael Podesta's quick and dirty method gives it as 4.7...
LOL at least I can do my hobby out of the rain!
@johnmo Thanks for the link. I am in effect running it in pure weather compensation mode as my samsung controller/thermostat is in my hall not my livi...
Just thought I would post back in this thread for any future viewers as what what Ive discovered. It appears that the Samsung controller does not ha...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Not a problem; that’s why I left it as it was. The pers...
By Majordennisbloodnok , 6 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 , 15 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 , 2 days 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 , 3 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 3 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
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