Last seen: Jun 23, 2025
@jamespa I appreciate you really digging into this with your brain! 😀 So this is the first summer that I'm actually thinking about this sort of thin...
Yep! And I agree.. the R290 placement restrictions are crazy prohibitive atm. 🙁 If R32 continues being phased out (and manufacturers don't add more '...
@jamespa Hmm, ours would be on an adjoining wall to one bedroom (our current bedroom), and directly below another bedroom (which will be our future ...
@jamespa Also, check the noise spec given its going to be indoors. They say it's 56db, which is apparently similar to a modern boiler? And much lo...
@jamespa & @judith Thank you for giving me confidence in my logic! It’s great to hear I’m kind of on the right track, and it’s super helpful to he...
Hello @old_scientist! Yep looking at the coldest day(s) is exactly what I showed in my spreadsheet on the previous page, here:/p> You can see on t...
Hello @old_scientist! Yep looking at the coldest day(s) is exactly what I showed in my spreadsheet on the previous page, here:/p> You can see on t...
I did a little thinking on it myself! In February this year we used an average of 31 kWh of gas per day for heating + HW. Assuming a generous boiler e...
@editor Hah, interesting! Thank you for asking! I assumed they weren't as bad just due to the smaller size, and the way they're spoken about in some o...
Well you have certainly done due diligence I've certainly tried! 🤣 It's been mind-blowing how hard it is to convince some installers that ...
@bontwoody Would the main consideration for determining whether the pump could achieve that flow (with the pipe resistance as it is) be the power capa...
@allyfish That does look wrong, doesn't it! For identical flows, where the primary and secondary sides are 'in balance' What about when that isn't t...
Latest Posts
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@agentgeorge Back to the Future with the flux capacitor...
By GrahamF , 9 hours ago
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RE: Heat loss calculations and how they work in conjunction with heat pump sizing
@jamespa unfortunately, I don't think heat loss calcula...
By GrahamF , 9 hours ago
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RE: Renewables & Heat Pumps in the News
I am not sure if many people would be running aircon or...
By Batpred , 12 hours ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
That will be producing significant losses due to phase ...
By Transparent , 12 hours ago
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RE: Isolating the system for a planned power cut
When I said we'd need to know more about the RCD, MCB a...
By Transparent , 12 hours ago
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RE: Radiator sizing for heat pump installation by British Gas - are these correct?
With the frvs, I assume looking at the blurb, they just...
By Bash , 14 hours ago
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Which tells us something (including possibly everything...
By cathodeRay , 14 hours ago
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RE: Flexi-Orb Heat Pump Scheme Update: Progress, Pilots and Why This Matters for Homeowners
Thanks for sharing. Sounds promising, ISO are indepe...
By Batpred , 18 hours ago
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RE: Specifying batteries, pv solar etc using ChatGPT
I have been positively surprised when I asked it to spe...
By Batpred , 18 hours ago
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Thank you. That simultaneously answers my question abou...
By Transparent , 22 hours ago
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RE: Heating Turned Off but Radiators Still Warm
What do you mean by 'turned off' exactly. Same questio...
By JamesPa , 23 hours ago
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RE: Low Flow Rate Error - 8 kW Ideal Logic ASHP - Help!
@wh0am3ye - OK, starting to make sense, but it does mea...
By cathodeRay , 23 hours ago
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@editor fortunately we have a boiling water tap in the ...
By bontwoody , 1 day ago
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@Fiona, I really don’t want to disappoint you, but I ha...
By Mars , 1 day ago
