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Last seen: Jun 26, 2026
@tim441 very good question, and the reason is our limited BESS capacity of 13kW, which would not power the ASHP in the heating season during the day. ...
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 ...
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Degrees of Separation
Latest Posts
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@jamespa Also this coming winter I am going to run my c...
By kilgorexv , 6 hours ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 9 hours ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 10 hours ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 18 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 18 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 20 hours ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 1 day ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 4 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 5 days ago
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 5 days ago
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 6 days ago
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