Last seen: Jan 29, 2025
@togfather as I said before, you won’t beat oil with a heat pump….. Oil really is the cheapest heat source out there. Anyway, back to the original i...
Swimming pool heat pumps often lack the reversing valve to do a defrost…. Mine certainly does. you’d be much better off using a mini split, gutt...
@iancalderbank we can argue with installers on Linkedin about how they're mostly incompetent 😀
@bontwoody My self install seems to be working nicely too, despite me ignoring the manufacturers instructions and running it direct, open loop... I st...
@derek-m it’s interesting you discuss the changes in outside air temp as registered by the sensor, so commonly mounted on the evaporator guard. Mine...
@william1066 it’s a hard one to compete against, Oil…. Definitely the cheapest fuel source for home heating. I went into this with a break even with...
@jwilliams89 ah, ok you’re changing the sealed units. Gotcha. It might be possible, with a simple change of glazing bead to go for triple, In the exis...
@jwilliams89 sensible…. We’ve just completed an upgrade to triple glazing, it has made a big difference. Mainly because I supervised the measurement a...
Nothing wrong with 45 degree flow, that will be at the design outside temperature, which in your area might well be -2 or -5. After all, there needs t...
I think the Carel platform just calls this ‘coil temperature’…. It’s always below ambient when in heating mode, unless it has just done a defrost.
My pump stays on 24/7, as it's the only pump in the system and I don't ever turn my heating off.
@cathoderay ah yes, because the Midea is only a single fan, for apparently up to 16kW of output... Working that evaporator coil very hard. My 9kW, w...
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Latest Posts
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RE: Aira Heat Pump: Stylish Scandinavian Heating
@vsmith1 I have a feeling that some ‘discretionary fact...
By Toodles , 8 minutes ago
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Noted but (a) constant vs variable flow rate doesn't ma...
By JamesPa , 18 minutes ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
Our latest podcast episode is out featuring our very ow...
By Mars , 30 minutes ago
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RE: Transforming a Derbyshire Property into an Energy-Efficient Haven
Incredibly detailed piece @carpenterstation – thanks fo...
By Mars , 1 hour ago
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RE: Who's your electricity provider and what's your tariff?
I haven't yet bothered optimising the heat pump cycle, ...
By JamesPa , 3 hours ago
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@lucia thanks for the reply, I think I've now got suffi...
By big_si , 4 hours ago
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RE: Battery storage to run Heat Pump.
Thanks I presume 3.86kW applies to export (is this co...
By JamesPa , 4 hours ago
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RE: Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?
Would be nice to see some data for Midea units, as thes...
By Old_Scientist , 4 hours ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?
@cliffhanger - thoughts on how to deal with your situat...
By cathodeRay , 4 hours ago
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RE: Setback savings - fact or fiction?
@jamespa - thank you for your ongoing heroic attempts t...
By cathodeRay , 5 hours ago
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RE: Towel rails. An unexpected final hurdle
@davesoa No, unfortunately. I had to pay the VAT becaus...
By Lucia , 6 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@editor I have been persuaded by the argument that you ...
By SUNandAIR , 6 hours ago
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RE: SolarPV tables / online calculator
@majordennisbloodnok what degradation per year is typic...
By MichelleC , 6 hours ago
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RE: Daikin Heat Pump Cycling Frequency?
I think your current method of logging F-gas pipe tempe...
By Mars , 17 hours ago
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RE: Baxi Air Source Heat Pump tips and tricks please
@cathoderay thank you, I will.
By Cathyem1 , 20 hours ago
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RE: Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
Sorry, yes, 2105. OOPS! If I recall the unit circulates...
By AllyFish , 22 hours ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
No pressure or obligation, this discussion has moved on...
By JamesPa , 22 hours ago
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RE: Split system and pipe lengths for air source heat pump installation
@johnmo got it. Thanks.
By nickmorgan , 24 hours ago
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RE: Ecodan ASHP - How to optimise my set up?
Thanks everyone for posting this, so much useful info t...
By Bamnio , 1 day ago
Latest Topics
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Daikin Heat Pump Cycling Frequency?
By Ubert767 19 hours ago
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Battery storage to run Heat Pump.
By Broadsman 1 day ago
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Heat Pump Sizing & Installation Costs
By Mars 2 days ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 2 days ago
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SolarPV tables / online calculator
By MichelleC 3 days ago