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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: New Build 3 Phase or 1Phase
Not so. 1: It's now the case that the Service Fuse wi...
By Transparent , 2 hours ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
I think it has an enormous impact on air/air users. The...
By EtchedPixels , 9 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 1 day ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 1 day ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 2 days ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 3 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 3 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 3 days ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
By Singlespeed , 3 days ago
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york I must admit that when we had a Daikin hea...
By Toodles , 3 days ago
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 3 days ago
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RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
By dansus , 3 days ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
By Rob of York , 3 days ago
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