Last seen: Sep 17, 2025
Nothing wrong with a bit of thermal mass unless you want to keep varying the indoor temperature, which is not generally how you aim to run a heat pump...
Maybe. Radiators can 'start off' well oversized, particularly if the fabric has been improved (although that appears not to be the case here). We ne...
Not sure where to start with this so I will start with basics. Apologies if you already know this. Heat pumps work best at the lowest possible ...
That attitude isn't unique to heat pumps, many tradesmen exhibit it. The number of times I have either been told that it's 'complex' or simply given ...
@derek-m @iantelescope @editor I am probably making a mistake wading into this but... Sometimes in life bad things happen, its a fact. In this ...
OK I found some prices etc. Attached a very crude comparison. In both cases I assume that the system is well set up - ie the Oil boiler actually con...
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. ...
Latest Posts
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RE: Powerwall 3 or Myenergi or something else?
Many of those tariffs are simple time of use tariffs, w...
By Temperature_Gradient , 10 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Yes thats the whole point of the flexis as regards tran...
By JamesPa , 10 hours ago
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So far as I can tell designing for DT5, which is 'the n...
By JamesPa , 10 hours ago
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Mitsu PAR-WT60R Wireless Controller - options
I hope I have satisfactorily installed the above wirele...
By DavidAlgarve , 12 hours ago
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WC curve best discovered by experiment anyway as any lo...
By JamesPa , 17 hours ago
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RE: Big Changes Coming to Our Heat Pump System
@editor your engineer's attitude is truly horrifying. ...
By GrahamF , 1 day ago
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RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
By GrahamF , 1 day ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 2 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 2 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 2 days ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
I've never physically seen it, but I seem to recall som...
By cathodeRay , 2 days ago
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RE: Midea ASHP – how to set weather compensation
I noticed that too and thought the same thing, but then...
By cathodeRay , 3 days ago
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RE: Ya can’t win! It is S*d’s Law!
@old_scientist If IOF is still running next late spring...
By Toodles , 3 days ago
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RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 3 days ago
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RE: Who’s Caved and Switched the Heating On Already?
We've been running our Ecodan system, installed in June...
By Sheriff Fatman , 3 days ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 3 days ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 3 days ago
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Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 4 days ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 5 days ago
