Last seen: Dec 3, 2023
Why must it? Heat loss is proportional to the difference between indoor and outdoor temperatures. Heat loss Q depends on the thermal transmission va...
I voted "generally good" although it would have been "very pleased" were it not for a fault on the indoor unit which can't be blamed on the installer ...
Is that actually true though? See the other thread entitled "heat pump myths". The cooler a house is at any given time, the less heat it is losing to ...
I'm confused, aren't the room stats supposed to be turning the flow on and off, while the weather compensation controls how hot the flow is? It seem...
The other variable, which applies to me and I suspect quite a few other people, is variable electricity tariffs. My energy costs about 33% less overni...
I believe that is actually a COP of 3. The energy yield is the excess heat generated, on top of the electricity used. So you have produced (222+444) o...
My outdoor unit had similar damage to the fins - it looks like it's only very small areas and ours was similar - the bottom corner had obviously been ...
The room thermostat controls when the UFH calls for heat, and the weather compensation controls the flow temperature that the heat pump delivers. Is t...
I'm trying to work out the best way to run my ASHP with Economy 7. Our cheap tariff runs from 11.30pm to 6.30am. At the moment I have the thermostat s...
I would also add that having checked out the Bulb tariff for non Economy 7, the rate is only slightly lower than my existing tariff (34.2258p versus 3...
Hello, I posted this in the welcome thread so I wasn’t expecting to get my own thread 😀 Some more info: Electricity rates: night 23.9p, day 36.8p...
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RE: Additional Battery v Wind Turbine v Ripple
I should add, being an investment, the value of your in...
By Old_Scientist , 4 hours ago
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RE: Ecodan - flow rates, sensors, settings
Achieving an accurate flow measurement is probably the ...
By Derek M , 7 hours ago
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RE: Ecodan ASHP - How to optimise my set up?
Again, thank you for another thorough post, @derek-m - ...
By rhh2348 , 9 hours ago
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RE: Delivering a smart and secure electricity system: government consultation
@Transparent.Now that I am represented by a new MP I th...
By IanMK13 , 12 hours ago
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RE: Vaillant aroTHERM plus not level or flat - what base is best under an external unit?
Similar thread here
By Johnmo , 12 hours ago
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RE: VDI 2035 heating water specification
Been looking and it seems a good little project. Ever...
By Johnmo , 1 day ago
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RE: Do I accept an ASHP and Solar Panel retrofit under the HUG 2 scheme?
Will do. I'm currently waiting for another survey / vis...
By dssr , 2 days ago
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The company that did the borehole were expecting us to ...
By Johnmo , 2 days ago
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RE: The Misquote That Ruined the Heating Industry
@abernyte manufacturer training is pretty average. They...
By Mars , 2 days ago
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RE: ECO4 Scheme and EPC ratings
@mellow Thanks. Given there is a scheme requirement to ...
By Old_Scientist , 3 days ago
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RE: Do I just go with the lowest quote for my heat pump?
@jancold To me its a no-brainer then, a max 40C flow te...
By bontwoody , 3 days ago
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RE: Heat Pump Books Beginners – Bodge Buster & From Zero To Heat Pump Hero
@editor Presumably he had some good weather Compensatio...
By Toodles , 4 days ago
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RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??
Storage capacity really is dependent on storage tempera...
By Johnmo , 4 days ago
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RE: HP Cycling, Expected or Undesirable
Just a little update. I ordered a longer shielded twin ...
By bontwoody , 4 days ago
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RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump
Thanks @allyfish for the pics and info. Spoke to the in...
By Mellow , 4 days ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
It's been a busy day for calls and emails from Aira. I ...
By MikeH , 4 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
Hmm. A bit of a nuanced answer, methinks. As I've alr...
By Majordennisbloodnok , 4 days ago
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Ecodan - flow rates, sensors, settings
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Replacing mains water with well water
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Additional Battery v Wind Turbine v Ripple
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By jamespipe 3 days ago
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VDI 2035 heating water specification
By Johnmo 3 days ago
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Do I just go with the lowest quote for my heat pump?
By Jancold 5 days ago
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The Misquote That Ruined the Heating Industry
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