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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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RE: Siting of the external sensor on a heatpump
I agree. However I would also (primarily) expect that ...
By JamesPa , 8 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 11 hours ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 15 hours ago
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RE: Is it the house or the equipment?
@majordennisbloodnok I do sympathise. On the original...
By springswood , 17 hours ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 20 hours ago
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Sorry to hear about the problems, its going to be somet...
By JamesPa , 22 hours ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 1 day ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 1 day ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 3 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 3 days ago
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RE: Tell us about your Solar (PV) setup
We have a 6.56kW solar PV system (16x 410W panels) inst...
By Rob of York , 4 days ago
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