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Last seen: Oct 27, 2026
Because it's been done in a completely muddle headed way. The requirement for accessing a grant has been conflated with both planning and building re...
One of the many reasons I think that MCS should be taken entirely out of the regulatory loop. That which needs to be regulated should be regulated th...
@fazel @bontwoody Anyone who said central heating system design is easy lied, particularly in a retrofit situation where one of many often competing...
Like most on here I'm not a heatpump engineer either. My background is in physics and engineering with a recent diversion into local government. So ...
If sizing for 35C leads to rads of a tolerable size then in principle i agree ( although you can do both) However I'm not chasing what you suggest, i...
That's interesting data provided that a) in doing your calculations you adjusted the lwt in the case of a cycling pump so that the average power...
Unfortunately you are wrong assuming the objective is to heat the house to a given temperature. If the heating is on/off, whether controlled by the h...
Yes but at the expense of running at a higher flow temperature (and thus lower efficiency) than is necessary to achieve the power output required from...
Equally some achieve greater output than their name plate rating. Choice of model should be based on the capacity table and design min OAT, not an ar...
Good point! [/quote] True, but surely its alright to go without, or just use the immersion, on the handful of days during the year when the OAT is...
Looks like these guys are onto it, albeit for energy efficiency not system sizing.
If you have a smart meter and gas heating, you have in principle very accurate data on demand. It's not entirely easy to interpret, and some addition...
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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
@editor I completely forgot to document wha...
By Burtis , 9 minutes 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 , 3 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 , 3 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 , 5 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 , 11 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 , 15 hours ago
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
By JamesPa , 15 hours 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 , 16 hours ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 17 hours 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 , 1 day 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 , 4 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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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 5 days ago
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