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Last seen: Apr 8, 2025
You can't forecast the annual generation by simple extrapolation from the winter six months. I have a winter tree shading problem (some of the trees a...
Encouragement of installers to take account of the emitters must be a good thing. It might make it more difficult for the likes of Octopus to get away...
The flow doesn't get reversed but just keeps circulating without being heated at the heat pump. Consequently there's a drop in flow temperature as the...
1970s 4-bed detached house approx 168 sq.m internal area in central southern England. Approx 200mm of roof insulation, insulated cavity walls, fairly ...
How many pipes go in/out of those tanks? Buffer tanks normally have four pipes but if there's only one pipe per tank then they are expansion tanks, he...
Further to the above I have just made some observations during a defrost cycle. My Arotherm+ kept the secondary (radiator) circuit pump running so the...
I should add that my system has two circulating pumps: One in the heat pump which circulates water to the buffer tank and DHW cylinder and one in the ...
I agree with the cost of servicing being a major disincentive for the heat pump purchase. I had hoped that investing in a heat pump and associated rad...
I've got a 7kW Arotherm+ with 50 L buffer tank (so no immediate slug of cold water going to the radiators) and see the recovery from defrosting as onl...
The condensation demonstrates that the curtains are very effective so the window gets cold. My bedroom has a fairly big (2.4m x 1.2m) north-facing win...
Curtains and the loss through the window is what I was thinking about overnight. I've got a 3m wide and two storey high north facing window in my hall...
I have to wonder if the cold lounge needs a much bigger, or additional, radiator to get sufficient heat output from water which is cooler than what th...
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Degrees of Separation
Latest Posts
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 1 hour ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 2 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 4 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 5 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago
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