Last seen: Jan 9, 2026
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 ...
My first comment is that this is a heroic effort to eliminate variables and illustrates how difficult this problem is. I might suppose that the fact ...
Interesting. Are they getting bunged up do you think, or somehow 'shifting'. I haven't seen them in the flesh but from the photos they look like the...
Latest Posts
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RE: Fan is clipping ice build up from the front of unit.
In fairness, @toodles, I'd be more concerned if it beca...
By Majordennisbloodnok , 12 minutes ago
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RE: Setback savings - fact or fiction?
Just as an aside, I notice your graph has come from Hom...
By Majordennisbloodnok , 18 minutes ago
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RE: Running from backup generaor in powercut?
It seems the Microsoft minute has been usurped by the S...
By Majordennisbloodnok , 42 minutes ago
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RE: Recommended home battery inverters + regulatory matters - help requested
That doesnt seem quite the same description as the one ...
By JamesPa , 1 hour ago
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RE: Running my new Nibe ASHP efficiently
I'm new to the forum. Did you get a reply to this last ...
By Mike @ Camelot , 1 hour ago
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RE: ASHP Energy Consumption: Aira 12kW heat pump
@grantmethestrength MCS requirements for DHW capacity h...
By Toodles , 2 hours ago
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RE: New Mitsubishi Ecodan 11.2kW installation - L9 errors and maybe more
Great to hear! I just figured this out a day or tw...
By anotherdaveuk , 3 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk I'm observing my own system at low temperatures ...
By dr_dongle , 8 hours ago
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RE: Free Ecoheat Heat Pump Install
@deltona Yes older houses are problematic like that, bu...
By bontwoody , 1 day ago
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RE: Radiator sizing sanity check
As I mentioned early on the cost of supplying and fitti...
By JamesPa , 1 day ago
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RE: Advice for a novice on Mitsubishi Ecodan 6kW
I hadn't spotted that there were two pumps in the UFH (...
By JamesPa , 1 day ago
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RE: Electricity price predictions
Great point, one of the key ones in my chat with Octopu...
By Batpred , 2 days ago
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RE: New Fogstar 15.5kWh upright solution
Let me point out that there are many Chinese suppliers ...
By Transparent , 2 days ago
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RE: Weather compensation- why you should use it
@majordennisbloodnok — The Two Ronnies Mastermind sketc...
By cathodeRay , 2 days ago
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Just realised that this image of the cylinder cupboard ...
By Sheriff Fatman , 2 days ago
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RE: Rodents! A word of warning for heat pump owners
Two thoughts: 1: Let's ask @david-s if Primary Pro in...
By Transparent , 2 days ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
In the diagram below, I describe my understanding of th...
By Batpred , 2 days ago
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I need to have a look out for it. I know IBM feeds some...
By Batpred , 2 days ago
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RE: Daikin Atherma ASHP Cycling 6 Times an Hour?
Thanks for your reply. Yes that's a good idea to try a...
By John Marshall , 2 days ago
