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Last seen: Jul 8, 2026
That’s good gives you more capacity. It made me think, have you checked what your total radiator capacity is, because regardless of the heat pump, if ...
Hi @dreg1 I was wondering if you’ve made any progress in resolving your issue.
@john-castle Yes, I too have become somewhat obsessed, trying to comprehend what should in essence be something simple. As soon as external temps re...
@dreg1 . Thanks, I echo @heacol comments. A couple of thoughts you said two things that appear to me contradictory, that the thermostat on the landing...
@john-castle Yes that does sound problematic, I very rarely touch 900w and if I do I am wondering what the problem is? Who did your install. There is ...
@heacol , sorry how do I send a pm, I know I ought to know, but I don’t. Thanks.
@heacol , so does that mean you can’t comment?
Hi @john-castle , I’m new here too. I also have a Daikin. It’s the altherma 3 8kw. My system is a little different from yours because I have a mixergy...
@heacol , your footer says you are Director at Heacol & Head of Domestic Heat Pump Design Net Zero British Gas. I don’t know if you can help, chee...
Hi @dreg1 , I’m fairly new to this too. You’ll probably get some really helpful replies. A couple of questions, you referred to a primary circuit, whi...
@jamespa The third priority was a type, it was meant to be flow speed. Which was the whole point I was making. Also I notice you refer to radiators ca...
@jamespa Thanks for that. I think from what you have said that we seem to disagree, if we disagree at all, about the way the system responds in relati...
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Latest Posts
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 57 minutes ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 3 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 4 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 , 1 day 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 , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days 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 , 2 days 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 , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago



