Last seen: Apr 7, 2025
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...
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RE: Inventor (Midea) Heat Pump short cycling advice
True! I think so, or fit fancoils! From your figu...
By JamesPa , 27 minutes ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 4 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
Hello, unfortunately i did not take any photos, but you...
By ThunderMink , 4 hours ago
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RE: Solar Thermal DHW and ASHP
Since you already have the ashp it makes little financi...
By Judith , 13 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
I think you’ll find it depends on the room heat loss. A...
By Judith , 13 hours ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 14 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil Fwiw I have the 7kW model with which I'm, ver...
By JamesPa , 14 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@grahamf you appear to value your recirculating loop de...
By Judith , 15 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 15 hours ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 18 hours ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 19 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 2 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
Ooh, heat pumps in neon blue wrap 🤣 🤣 &...
By Old_Scientist , 2 days ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 3 days ago
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RE: Are Octopuses Slowing Consumer Adoption of Heat Pumps?
I mean, is this surprising? The local installers in my ...
By Alex , 3 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 3 days ago
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RE: Boiling Mad: Exposing Radiatorgate
Hi @Rob, I’d be more than happy to contribute. I have ...
By DREI , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@andris a great year - very happy with our system
By Profzarkov , 3 days ago