Last seen: Apr 19, 2025
@julianc 190m2 and not done a full year yet on ashp. Annual gas usage ~17,000kWh but efficiency unknown. We’ve used the wood burner a similar number o...
Some of these documents on moisture control
@julianc so far in January we’ve achieved 3.8 energy efficiency. Really pleased but we’ve not not a calibrated heat meter only the Vaillant prediction...
I was looking for the link about what heat could go down each microbore pipe. But I’ve been beaten to it. Your heat loss document should give the loss...
In no particular order some thoughts:- Clivet is a badged Midea and personally I wouldn’t have one given me. Since a Heatgeek trained installer sa...
On your first point @rosst your best best is to start with your installer, the manufacturer and dedicated forums possibly on Facebook for your type, s...
@jamespa ours (without a noise issue) was installed in September. I too recall reading the firmware is in a hardware (not-remote programmable) chip an...
@cathoderay digging into further dirty details are your fully open trvs suitable for bidirectional use or are they your secondary constriction?
@samiebon1 When adjusting lockshields its worth bearing in mind that some have a tiny range over which the adjustment makes any difference. S...
@samiebon1 our DHW gets to 48C with a heating temp of ~55C within ~ 45mins but it’s not usually empty (residual ~35 in bottom third of tank). The la...
@cathoderay &@bobtskutter This is getting interesting! I was convinced from much earlier posts that the early hypothesis of the PHE being inad...
@transparent to give context to my results of slow switch on current. Our Vaillant is inverter controlled, the system is open and the overall system i...
Latest Posts
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RE: The Rise and Fall of Europe’s Most Generous Green Subsidy
This is where the cold water storage tank was situated;...
By Dwynwen , 5 hours ago
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RE: Help with understanding my Mitsubishi Ecodan air source heat pump
@majordennisbloodnok, the same thought occurred to me, ...
By Morgan , 5 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I agree with @mars. My install was not dissimilar. ...
By JamesPa , 5 hours ago
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RE: Air Source Heat Pump - Side Alley Suitability
Thats probably fair enough. The degree-days calculatio...
By JamesPa , 5 hours ago
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
That’s interesting, but obviously concerning also…. Do ...
By SUNandAIR , 22 hours ago
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RE: In the middle of an ASHP installation - a few questions (and issues)
Thank you @robs - that very useful data. The issue wa...
By Transparent , 1 day ago
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
@trebor12345 The Auto function is supposed to adapt au...
By Heatgeek , 2 days ago
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RE: The Great British Heat Pump Quiz
@allyfish thanks for the feedback and glad it was fun! ...
By Mars , 2 days ago
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RE: help sizing rads based on room by room heat loss
If its 1988W at DT 50, which is how most radiators are ...
By JamesPa , 2 days ago
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RE: Career change – entering the world of heating and heat pumps
@editor Mars, thank you. That's along the routes I was ...
By Lakey , 2 days ago
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@editor thanks Mars, it's a rare occasion I'm looking f...
By big_si , 3 days ago
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RE: Efficiency Concerns on newly installed Mitsubishi Ecodan 8.5kW
@ashp-bobba and @jamespa - thank you both for all your ...
By CBrenewable , 3 days ago
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Win one of five "Heat Pumps 101" Courses
Heat pumps are gaining traction in the UK, but between ...
By Mars , 3 days ago
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RE: Agile: average import cost vs other tariffs?
@toodles thanks for the analysis. I'll be really intere...
By Old_Scientist , 4 days ago
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RE: Is this normal? Click of the DHW returning to space heating
@grantmethestrength Oh sorry to hear that, there should...
By ASHP-BOBBA , 4 days ago
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@ashp-bobba TBH the ladies are rather disorganised, so ...
By Cathyem1 , 4 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
And for those of us without an automatic irrigation sys...
By Majordennisbloodnok , 4 days ago
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Logically, the lower frequency = more gentle, yes, but ...
By SUNandAIR , 4 days ago
