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Last seen: Mar 16, 2026
The built-in thermostats on most immersion heaters are very approximate. They are more of a safety thermostat than a control device. Mine is maxed out...
There's a lot of misconceptions about legionella and 60degC. Similarly a lot of misunderstanding about how a stratified [non-mixing] domestic hot wate...
Welcome @solenoid. I have a Grant Aerona R32 10kW ASHP. The ASHP itself has been uber-reliable, it has never really missed a beat. The Chofu [built in...
I have voted for air to air on the basis of a future 'hypothetical' new house largely open plan living spaces, with multi-split systems including bedr...
Thermal contraction of the radiator as it cools? Aluminium has approximately twice the thermal expansion coefficient of steel.
Really puzzling @crimson. I have a 'text book' Appendix B Grant 10kW Aerona install scheme with secondary pump, 4 port low loss header, all original 2...
@Crimon, but the Grant Aerona R32 range has fixed speed pumps with 1,2 or 3 configurable speeds? Coupled with the previously blackened flow setter you...
Hi @grahamf, yes, exactly this. Unless you live in a house with all internal doors closed, high levels on insulation between downstairs and upstairs, ...
So the tomato has gone splat then? No surprise.
The Government DESNZ response to the Boiler Upgrade Scheme Certification Requirements consultation has been published. The MCS will retain their ...
2025 - now a record year of Solar PV Generation. October 30th any our Solar PV generation has exceeded 3740kWh, our previous yearly record in 2023 for...
Hi @colinc. Your concerns are well-founded. At least you can make a well-informed decision either way. The laws of physics and thermodynamics can't be...
Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
Hi @ian33a you could do your own heat loss calculation ...
By Judith , 5 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@djh ah, I have never seen this before, interesting ide...
By ASHP-BOBBA , 5 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 6 hours ago
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RE: Setback savings - fact or fiction?
@jamespa — this version may be marginally better: &nb...
By cathodeRay , 8 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 8 hours ago
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Current metrics - DHW target set to 47c
By TaffontheTaff , 13 hours ago
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RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
By GrahamF , 15 hours ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
By Broadsman , 17 hours ago
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 20 hours ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 20 hours ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
That would be abnormal but I cant see from your charts ...
By JamesPa , 21 hours ago
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RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
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RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
By Deltona , 1 day ago
