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Last seen: Oct 10, 2026
If you find the spec sheet of a 12kW Midea it’s only about 10kW at -2C (design temp for a lot of south England) whereas the 11kW Mitsubishi could actu...
The above beautifully detailed reply by Ray shows the issue of units used. Air changes per hour ACH are easy to visualise and hence a larger room volu...
If you want to get into engineering /architectural details the there are a couple of good blogs from guys, one with a solid wall cottage
Personally I wouldn’t touch BG with a barge pole, based on 2 family experiences with them when they went into solar. On your own heat loss estimate ...
Or is refusal to burn wood when the market price is above the strike price (and the system needs power presumably) simply gaming the system to maximis...
I’ve been educating myself on electricity supply issues and the above research briefing is a balanced summary. Newspapers and statements from companie...
@derek-m and others i think I’m getting there, so can I try this out…..? There are too many dTs in this game. Derek rightly corrected me on averag...
We’ve just had ufh in our (not yet finished) extension but the rest of the house has radiators (and will stay that way). We really had to insist that ...
Naive input here: I understand that LLH are supposed to act as impedance transformers (when set up right), giving the option of a higher delta T acr...
I’m not that stupid, but I’m having trouble getting my head around this, science, engineering, physics, control engineering and programme management t...
Aaaaah! your situation is more complicated than I realised!
@toodles I asked the plumber who was installing this yesterday (we’re only going to use the electric version in the summer when the water isn’t bei...
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Degrees of Separation
Latest Posts
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york Thanks Rob! A LOT to digest here! Plea...
By SusannaSaunders , 1 hour ago
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RE: Electrical works for air to air heat pump
An electrician who signs off work is responsible for it...
By EtchedPixels , 3 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 , 4 hours ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews I have read you latest response re buffer ...
By JamesPa , 23 hours 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 , 1 day ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 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 , 3 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 , 3 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 , 4 days ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 4 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 5 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 5 days ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 5 days ago
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