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Last seen: Sep 21, 2026
OK so lets start with some back of the envelope stuff. Your peak heating load is say 3kW. So you need 3/(4.2*4) l/s = 0.18l/s=10l/min to carry this ...
OK so if you are consuming 1300kWh per year that's about £300 at current electricity prices, less if you have an ashp-optimised tarrif. So you may fe...
sorry to bring it back to gutter level - but its builders innit. I'm seriously not sure that anything we are hearing about ASHPs, frustrating though...
That may be the case in your house but its definitely not the case in mine nor in many others reported here. Even with my current gas boiler (with mo...
They may be for all I know! Perhaps 'adaptive' mode (or other manufacturers equivalents) use such controllers. AFAIK the problem with delay ...
I think you are confusing kWh (energy) with kW (power = rate of using energy). Think of the first as distance and the second as speed. It would help...
OK so we DO agree on the desirability of changing the flow temperature. Thats the most important point. AFAIK commercial heat pump controllers abso...
Can you clarify. Do you mean 1300kWh and is this electricity in or heat out? For UFH that's completely ridiculous (as you obviously realise)...
I think you (for the avoidance of doubt by you I mean @tasos) may be misunderstanding what variable the inverter reacts to. It changes the energy del...
Maybe, or maybe (depending on the system) you need a differential component also, which is why PID controllers are a thing. And maybe you want to tak...
... which is precisely how it achieves cost savings, by playing with LWT in response to OAT, predicted OAT, quite possibly predicted solar gain and wi...
OK got you. Thats how a buffer should, ideally, be run. I know of two basic techniques - 1. Adjust pump speeds (somehow) so the flow rates in an...
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Latest Posts
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 41 minutes ago
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RE: Why are ASHP installs so expensive?
And then you look at US electricity prices and weep.
By bornagain , 3 hours ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 8 hours ago
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The positive reviews keep coming in for Britain's Heat ...
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
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It looks like some sort of short pre-run. The question...
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My feed of random industrial auctions turned up this au...
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