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Last seen: Nov 5, 2026
Yes if it results in the heat pump being cycled on and off, which clearly it does. In this circumstance it's the average you need to think about whi...
Between 0 and 4 it appears to be cycling with an average power in of 0.8kW and an OAT of 5C. Why do you think this is high. It suggests about 3kW to...
The secret to this is (a) turn all or most of the TRVs to maximum and (b) balancing the radiators. Same as any open loop heating. Its a bit tediou...
Fair comment. I have a feeling that ratings more generally have become subject to fears over liability. Its utter rubbish, but can you prove it? ...
If there is any way you can determine daily oil consumption (with date) through the season I suggest you do so. Ideally run your oil boiler for the s...
Good plan and pretty much what I did in the end (there were still 4 rad upgrades to be done by the installer when I got the heat pump installed, but I...
Sure. Mitsubishi ilife2 slim is the one Ive got. Panasonic do something similar. Myson ivector is another, Smiths Ecovector a low end one. Jaga Str...
I don't but I do have an a2W system with one fancoil and 2 radiators that have had fans added on a DiY basis. The rest is conventional rads. If I we...
If you can turn on the destrat pump COP should improve because the water in contact with the coil will be colder. You will also heat more of the tank...
As you know balancing flow rates is very important. If flow from heat pump < flow to emitters you get significant system distortion (and thus loss...
This is what I do, but I have a very simple economy 7 like tarrif (EON Next Drive) so the settings are trivial. EV-rated 13A wall socket, 'granny' ch...
Many, perhaps most, heat pumps run their water pumps occasionally (sometimes every 24 hrs or once per week) to prevent this. With it b...
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders An interesting conversation to have...
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RE: Why don't people choose heat pumps?
I have been putting together some material for a series...
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes, in my case, the ISP hub is permanently there, they...
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RE: Electricity price predictions
@rob-of-york sounds like a term that Heidegger would...
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RE: Adding data centre electricity costs to domestic energy bills?
never ceases to amaze me.. Keeping steel works going ...
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RE: Boiler Upgrade Scheme funding reduced by circa £750 million in 2026 budget
Absolutely agree. The massive Hager CU my vaillant requ...
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RE: Octopussy cosy 6 experience
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I thought the cr*p came first and the biofuel came afte...
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RE: Aerotherm and weather compensation
@jamespa I replied yesterday with detailed readings whi...
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RE: Marvel Heating liquidation
@editor This is an important point. each winter, you...
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