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Last seen: Aug 26, 2026
The defrost cycle on an A2A works almost the same as the A2W but where on A2W you need a volume of water to offset the energy needed to compl...
Hard to tell but I think I have placed the arrow on what you are looking for?
@editor this is great news.
I see where you were also going with this, its is likely where you use your system less (for not heating water) your system is less likely to need ser...
Technically these monoblocks do not loose refrigerant unless they are failing, they are hermetically sealed, refrigerant top ups are not a service ite...
The issue with over sizing or sizing correctly is equally related to it minimum capacity as well as max req capacity, cost difference between capacity...
@djh ah, I have never seen this before, interesting idea, so a central ASHP but a much lower loop temp then a local top up with mini units in each roo...
Mitsubishi have something called HVRF, this is their VRF with 2 main CH pumps feeding multiple fan coil units with water but acting like an AC system,...
Like with some other minor mistakes made, this is something that catches out even good ASHP companies sometimes, MLCP is not a good solution for any h...
The 32mm PEX/PE MLCP is not 26mm at the connection points, it is 22mm, I do not know the brand they are using but they are often simular to each other...
It seems odd these companies don't design and plan for you before the build, I would say this is at least half our work load, in fact I quite...
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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 , 12 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 , 21 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 , 2 days 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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