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Last seen: May 24, 2026
Hummm....this depends on the type of compressor. For a typical positive displacement compressor (think medical syringe moving backwards and forwards...
@transparent that's a great diagram to share, it shows the design trade off that go into system specification. Suppose we required 4kW of power to ...
This thread is great! What do people mean by efficiency? It's a word that's often quoted in relation to heating systems, but do people really under...
@jamespa please can you share the details of the fan coil you used. Thanks Bob
@cathoderay you're very welcome. If your living room radiator got warm when you had the system balanced with the lock shield valves pinched in then ...
I was wondering how you were getting on. Are the pipes to living room radiator in a concrete floor? Do they have insulation? You're probably loosin...
An old thread, but please can the default subscription setting be set to "none". My email inbox is rapidly filling up with spam from this forum. I h...
Just dug this up with google A properly designed buffer vessel shouldn't be impossible to achieve. Bob
So, I'm thinking out loud here - this is a way I often approach solving complex problems: I've got a house at 10C and I turn on the heating. Where ...
I don't own a heat pump, unless you count a fridge freezer. But it does appear as though the defrost operation of ASHPs isn't often spoken about. It...
Yeh, I did really didn't I. Regards Bob
Evening...I got the spreadsheet. Blimey, there aren't many people I know who know how to use named ranges - very nice 😉 It'll take me a while to g...
Latest Posts
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Thanks for sharing, ours is looking fairly different. ...
By Batpred , 2 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent as you probably know GivEnergy entered adm...
By Tim441 , 2 hours ago
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RE: Cooling with air to water heat pumps
Very sensible Unfortunately I fear that's too simple...
By JamesPa , 4 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Good morning. I just came across your website. Was ho...
By iRadiate , 9 hours ago
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RE: Failed Heat Pump Install: IWA Claim Rejected
Many of the estimates we received mention IWA and RECC....
By Batpred , 20 hours ago
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RE: Rural burning – I've had enough
Same here in Finland. It's strictly forbidden ...
By upnorthandpersonal , 21 hours ago
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RE: Renewables & Heat Pumps in the News
Something worth flagging... we've just published a news...
By Mars , 21 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
The Homeowners' Q&A podcast is back... I've changed...
By Mars , 22 hours ago
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RE: Anyone concerned about GivEnergy?
I have already signed up with Axle so yes, that takes c...
By KevH , 23 hours ago
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@batpred Would it pass the airbnb feedback test no. I...
By EtchedPixels , 2 days ago
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A quick update... we've just launched the beta version ...
By Mars , 2 days ago
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RE: Who Actually Owns a Heat Pump in Britain? We Asked. Here Is What We Found.
The age part doesn't surprise me - only 25% of UK home ...
By EtchedPixels , 2 days ago
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RE: Home automation and the cloud; is there a better way?
Nothing you've said there, @etchedpixels, is something ...
By Majordennisbloodnok , 2 days ago
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I've heard from others living in the vicinity of Derril...
By Transparent , 2 days ago
