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Last seen: Oct 28, 2026
Passive cooling should always be the first call. Keep the heat out rather than trying to extract it by using more heat! Southern European countries ...
It can be done but really, really, don't, you will regret it and you will suffer exactly the problems your installer is predicting and almost certainl...
I think this calculation goes the other way. 3.54kW gas is used of which 85% went to the house (the rest up the flue). So the house needed 3kW. ...
Volumisers are normally plumbed so that they are in the heating circuit only, which is done by putting them after the diverter valve. Yours has obvi...
My thought is simple. Bring it on and bring on plug in batteries asap as well. I think that the g98 position may mean that you can still have 1 p...
That's consistent with your heat loss calculation. You will end up with a 5 or 6kW heat pump. Cosy 6 if you go with octopus, probably the Vaillant ...
Good exercise. Obviously I have nothing to check it against but its very plausible. Do you have your current fuel consumption as a sense check? At...
When looking at 3-4kW houses its also worth bearing in mind that most manufacturers dont sell anything smaller than 5kW (sometimes they sell a heat pu...
@majordennisbloodnok @tomtheheatingengineer For my money both Heat Geek and Octopus have the advantage of volume. This provides them with real da...
There is scope for product development here. I for one don't want another ODU and another set of pipework around the house, even to just the two or t...
Nought for nought is the very best you can do, as soon as you try to get anything at all you get less because entropy continually increases. This is...
Really flow rate is a pipework limitation not a water pump limitation, you can always fit a pump with a greater head or a supplementary pump, but ther...
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Degrees of Separation
Latest Posts
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RE: The good, the bad and the not that great – my heat pump installation
@burtis Thanks for posting this and Im so pleased you ...
By JamesPa , 1 hour ago
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RE: I need help with Ecodan ASHP
@f1p It turns out there have been a solar panel install...
By Andris , 13 hours ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews your installer would be right to say that the...
By GrahamF , 14 hours ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
@trebor12345 That curve looks healthy to me. I woul...
By JamesPa , 15 hours ago
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RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
By Majordennisbloodnok , 22 hours ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders can I just add to @rob-of-york s comm...
By JamesPa , 1 day ago
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 1 day ago
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RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 1 day ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 1 day ago
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RE: Are there any comparisons of DHW heat stores around?
@sarahemmm I have done things the opposite way round I ...
By Toodles , 2 days ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 3 days ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 5 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 5 days ago
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