Last seen: May 2, 2025
@gary I get where you’re coming from. But I don’t think you’re undersized . You’re trying to cram in all the heat your house needs into certain peri...
Hi, I'm saying this from my experience, not as a heating expert: Your compressor is turned off for too long periods. You may think the UFH is at ...
@gary how much UFH and how much rads are you? Whats your screed depth and pipe size?
@jamespa yeah, i agree. The time required to fine tune a system is not economical. I absolutely understand why heat pump companies oversize, stat ...
@jamespa yeah, I agreed. My son’s bedroom is on the ground floor with his sisters room above. I need to keep his room all night to over 20 so the fabr...
@jamespa yep, and this is what I'm doing it's the eveness of the spec. If your going to oversize, do it evenly. BUT, and it's a big BUT, having...
@gary Its not the integral tank, so I have a separate pump. My data from the second 1/2 of the winter is that 11.2 should be OK to cover this ho...
@sunandair I can't get my system higher than 35 or 36 degrees, The only way to do that would be to start to close more of the secondary system off.
@sandman1600 What I mean is, your UFH power is 79wm2 I think, at mean water temp 50, so in your house that is 9. something kw of power. they desi...
@sandman1600 If your heat loss is really 14, and your UFH capacity at mean water temp 50 is 9kw, if they are right, the the pump won’t be your prob...
More like “the heat loss report is the heat loss report” The actual heat loss, well, you’ll have live evidence. if increasing primary flow withou...
Latest Posts
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RE: Failing heat pump system - seeking thoughts on a rebuild
@jamespa I think that's a good interim solution James. ...
By bontwoody , 6 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 10 hours ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
I have signed up as well. @belsnugg could you outline ...
By JamesPa , 18 hours 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 , 18 hours ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 1 day 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 , 2 days ago
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@old_scientist sorry, I should have made it clear that ...
By GrahamF , 2 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@thundermink can you provide photos to illustrate your ...
By Morgan , 2 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 , 2 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 , 2 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
After our rather lengthy meander off piste, I thought I...
By GrahamF , 2 days ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump - to collect the IAT/OAT data, can I sugges...
By cathodeRay , 2 days ago
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RE: Ecodan software update. Real or scam?
@vinz86 Contact Mitsubishi and an engineer attends and ...
By ASHP-BOBBA , 2 days ago
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@drei When I was in local government we were of cours...
By JamesPa , 3 days ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
Sufficient system volume is also essential for ensuring...
By Old_Scientist , 3 days ago
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RE: Flexi-Orb Heat Pump Scheme: A Game-Changer for the UK's Heat Pump Industry
As someone who has suffered from a Heat Pump installati...
By DREI , 3 days ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
I’ve also got a dual fuel Rangemaster. We originally ha...
By Majordennisbloodnok , 3 days ago
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RE: Octopus tariffs - a quick comparison
@tim441 I’d agree wholeheartedly with that, with 2 x Po...
By Toodles , 3 days ago
