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Last seen: Oct 16, 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...
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Degrees of Separation
Latest Posts
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RE: Why don't people choose heat pumps?
@transparent History shows (particularly very recent hi...
By Toodles , 23 minutes ago
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RE: Our 10 year old Grant heat pump failed
@editor @mike-patrick A 10 year old grant heat pump ...
By JamesPa , 1 hour ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Just revisiting this, now that it is a lot colder. Sin...
By AndrewJ , 2 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
In principle I agree but for what? OP has drawn a sche...
By JamesPa , 3 hours ago
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RE: Say hello and introduce yourself
Good to see you here, @claytonbrowne, and welcome to th...
By Mars , 6 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I couldn't agree more. It's all to easy to get wrapped ...
By Majordennisbloodnok , 23 hours ago
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RE: Issues with Samsung heat pump – high running costs and house dropping to 11C overnight
It looks very much like a radiator balancing i...
By hml1827 , 23 hours ago
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I have, @transparent, but chose to pose the question he...
By Majordennisbloodnok , 24 hours ago
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RE: Should I change my cylinder when changing from a gas boiler to a heat pump.
@jamespa’s point about payback is a useful counterbalan...
By Mars , 1 day ago
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If it no longer works after forgetting its settings and...
By bobflux , 1 day ago
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RE: Plug and play solar. Thoughts?
Impressions so far from the one I've installed are that...
By EtchedPixels , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@editor And as an occasional contributor, may I say wel...
By Toodles , 2 days ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
They don't have to try. Our entire system is d...
By EtchedPixels , 2 days ago
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