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Last seen: Aug 11, 2026
@old_scientist In my case I want to avoid any quick cycles on the HP, so in addition to using ambient temperature curves to control temperature, I pla...
@bobflux Yeah .. that is what I see as well. In my case I’ll run the pump in parallel, always on, through the floor as well as through a whole house ...
@old_scientist Thanks for the reply. I am looking at this question from the perspective of physics. My system will be open loop with two large heat ...
Perfect is the enemy of good. I can’t perfectly control some of the “overshoot” in house temperature .. ie due to sunshine and / or burning too much ...
@bobflux … yeah .. we have to run glycol here. The HP I’m looking at can signal a secondary system … so I may experiment with that as a control for su...
@jamespa Thanks guys. Just for fun .. I should also point out that since we are so cold here in the winter (it usually stays above -30C but we do occ...
@bobflux I’ve been experimenting with the cooling loop for 2 years now .. running 7C well water through it to see if the exchanger could keep up with ...
@editor Thanks for the reply. I agree .. I’m good at math and reason .. and the mass of the slab greatly exceeds the mass of a buffer. As long as my...
@jamespa Thanks for the quick reply. My supplier is suggesting a 4 port buffer for 3 reasons .. to assist defrost, to reduce short cycling, and to en...
I am an Alberta, Canada installer new to A/W heat pumps. I just signed up to distribute Arctic Heat Pumps, which I believe sell rebranded Macon R32 i...
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Degrees of Separation
Latest Posts
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you are considering phasing the project, then I woul...
By GrahamF , 5 hours ago
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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 , 7 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 7 hours 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 , 9 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 , 10 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 , 2 days 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 , 3 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 4 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
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