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Last seen: Nov 2, 2026
I agree. I have been advising another user with a Hitachi heat pump and that does have the ability to program more complex wc curves. Given how the...
Thats quite plausible particularly with radiators. Radiator output is not a linear function of surface temperature unfortunately, its (usually) pro...
My consumption figures, for a house in the South East that has a measured loss of 7kW at -2, are here My SCOP is roughly 4, but of course in...
Its not really a downside of ASHPs, its a downside of using weather compensation. Boilers with WC have exactly the same limitation. Other than t...
The Sunny boy is old enough that it should be considered dumb for all practical purposes. It limits its own output to 16A (measured at its own output...
Doubtless its possible but Im not currently sure its necessary or even desirable. You have plenty of kit much of which is unnecessary and unhelpful, ...
That doesn't make much sense as it should alter the flow temp, that's what WC is. 0 and 15 are presumably the outside temps, what are the correspond...
It does but it almost all applies to boiler systems and I wish I had understood when I had a boiler as much as I understand now. Just before I replac...
Seriously? So 'our heat pumps just work, we don't know how, but trust us they do'. That sounds like a red flag of the highest order! No sorry tha...
Some data is definitely useful. I ordered the internet connection for my Vaillant heat pump and use Home assistant to pick up some basic data because...
So theres a problem for starters. This means that the FT flatlines at -2 which means that, when its <-2 it isnt high enough to deliver the energy ...
That seems high. Do you know what your WC settings are (even if you cant change them and even roughly?)
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