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Last seen: Sep 20, 2026
The volumiser provides extra system volume which may reduce cycling or may be necessary for defrost if your system doesn't otherwise have sufficient w...
I believe so, we are looking for difference so as long as you can clamp consistently then it doesn't matter if the figure isn't perfect. I stress th...
@tim441 if you want to you can work out roughly how much it's costing by measuring the temperature drop across the buffer flow to flow. The cost is r...
15% or more typically The problem is not loss of energy (which as you say is small) its reduction in flow temperature to the emitters (due to the mi...
Pretty much that, basically (1) make sure that the fabric model represents the actual fabric and (2) adjust the ACH to fit measured loss. Here is th...
As long as they follow the weather compensation I wouldn't worry for now, You probably won't want room influence anyway. If they aren't following th...
3 times per hour is reasonable. Are you sure it isn't doing defrost rather than cycling because of overcapacity?
@lakey Do you have half hourly or daily readings and what was the heating pattern. Basically my ashp was sized on gas meter readings and the fabric s...
Thats the only logical explanation because for their main function they emphatically dont. Could be, then once he had received them he realised t...
I remember thats where you started (conservatism in heat loss). What do you actually know in total about heat loss. Do you have any consumption fig...
Once its running at lowest possible FT you might be able to reassess the operating mode when its mild. Depending on your house, when its mild (which ...
Fair enough. Obviously you understand that you will take a running cost hit but all designs are a trade off. 45 is often a good compromise for radia...
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I have one of these fitted which also allows you to reg...
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RE: Missing flow temperature in Heat Geek proposal
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RE: Cascade System or larger single unit
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RE: Why are ASHP installs so expensive?
Posted by: @batpred There´s another aspect that coul...
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