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Last seen: Sep 22, 2026
To do a fairly rough calculation isn't difficult, but of course the answer may fluctuate given the fluctuating costs of oil and electricity (particula...
No I apologise. I didn't mean to quote you I meant to quote OP (perils of working on a mobile phone!) - ie the comment was meant to help OP not as so...
Agreed. I expanded on this and related matters a bit in an earlier post of mine. You may want to re-read now the basics are done and I'm happy to an...
In a new build, which I presume this is, the supplier is reliant on what the architect tells them about the fabric, which is why I speculated that may...
I think the passivhaus standard is 10W/sq m and, if I'm right, 20W/sq m isn't impossible. I'm not for a moment suggesting the design is right, if t...
@notechknowhow if the breaker below is for the solar PV then that is a generation meter above. It's just the same as mine on a fit eligible system. ...
Daikin user manual is here and it explains how to program DHW. Check its actually programmed before you pay anyone, there may well be nothing wrong. ...
OK, so to summarise you have A heat pump Solar PV with eddie and Harvi Solar thermal A tesla powerwall You are lucky enough to have ...
Well that tells us that the Eddi works in manual mode (but may or may not work in divert mode) and your hp isn't heating water at all. So now the qu...
This does sound like a settings issue, or just possibly a diverter valve issue to me. And suspiciously it sounds like your 'maintenance check' is pro...
Doesn't the effect on cycling depend on how the water pump is controlled. If the pump (secondary in the case of a buffer tank, only in the case of a ...
As far as I am aware short cycling can be cured just as effectively by a volumiser as opposed to a buffer tank. Volumisers dont depend on accurate co...
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Degrees of Separation
Latest Posts
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@mrkfm I also went through all the doubts and uncertai...
By mkz , 13 minutes ago
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RE: Cooling using an air to water heat pump
@mrkfm Yes and no. There are some issues Conden...
By JamesPa , 15 minutes ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Hi @singlespeed That's fine we have installs where the ...
By Will H , 2 hours ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 3 hours ago
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RE: Why are ASHP installs so expensive?
Looking at it another way, do we think heat pump instal...
By scrchngwsl , 5 hours ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 18 hours ago
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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 , 23 hours ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 1 day ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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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...
By Old_Scientist , 2 days ago
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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...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago
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