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Last seen: Aug 11, 2026
@mairia Firstly its good to heat that cancelling setback improved things most of the time. Very cold weather is of course the strongest test. Ye...
@newhouse87 I have changed the title of this thread to specify the make. In most cases the only turnkey app for heat pump remote control that wont al...
OK so you have read the introduction. As @majordennisbloodnok said this takes time. You have come to this at a great period for adjusting things, bu...
So in simple terms triVAI is designed for a hybrid system, ie one combining a heat pump and another source (usually a boiler). If you haven't got a h...
@green_fox If you are new to heat pumps can I suggest you read this introduction. You need to forget almost everything you thought you knew about r...
You are doing well in January. Dec COP with my Vaillant was 4.2 which is also a typical SCOP for me. Jan so far 3.2. I suspect the fact I run in 'l...
I am not an ecodan expert but my instinct would be to say yes. Failure to defrost can cause a death spiral and leave your heat pump in a position whe...
That was what confused me! The heat pump FT is doing what you would expect.
I expect its something Octopus are looking at. Given the scale of their operation any way to shorten the installation process and make it more robust...
@batpred Thanks. I wasnt contemplating a self build battery, life is too short. Thanks for the info on UKPN, will check their site. @old_scient...
@bash Thats very helpful thanks, maybe I will just put together a G99 application (my DNO is UKPN) and see what happens! Im really hoping that by bu...
@andbeck Couple of questions and a thought: I cant actually work out in the plot which line is the DHW temperature and which the heat pump flow ...
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Latest Posts
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 39 minutes ago
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The "thermal comfort" we feel is a mix of air temperatu...
By bobflux , 1 hour ago
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 11 hours ago
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I meant to say I cannot register my kit at Energyplus… ...
By Batpred , 12 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
@indevolt-tech When you say 'dedicated switched fused ...
By JamesPa , 16 hours ago
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RE: PV and battery long payback - sense check query
So if it helps I was recently quoted about 8 grand for ...
By EtchedPixels , 2 days ago
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RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
By bobflux , 2 days ago
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RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 3 days ago
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 3 days ago
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RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 4 days ago
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RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
Thats all interesting. DHW on my Vailant seems to respe...
By JamesPa , 4 days ago
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