Last seen: Aug 4, 2025
@johnmo You are correct, standard Ethylene glycol used in the motor industry is highly toxic, however, the product used for heat pumps is a detoxified...
@editor @sallyl As Mars said, there are 2 different types of glycol generally used in the heating system. They are different and should not be mixed. ...
@jamespa, @heatgeek Talk about laying the gauntlet down. In my view, you are both right depending on the task at hand, the variables and the required...
@alfapat PM me and I can help, you will just neeed to find a standard plumber, not a specilaised one.
@jamespa you are right about the cospiricy of scilence regarding system balancing. There is no industry consensous, I put a post on linked in at the e...
@robs The flow rate is determined by the capacity of the unit. If you close a valve in the flow, the pump speeds up to try to match the desired fixed ...
@heatgeek 👍
@heatgeek No offense taken or inferred. The problem is, no-one actually knows but many claim to, and are disseminating unverified information as fact....
@heatgeek You state "Beware disinformation on this forum", then you state "The theoretical power level was calculated " and finally "Vaillant Arotherm...
@jamespa There is no consensus as manufacturers will not supply their test data, however, it is very much based on the design of the refrigerant circu...
@jamespa, please do not make assumptions when you admit that you do not understand the topic. There are reasons for the 5 Deg Delta T but they are exc...
@sunandair a red herring, cycling is not the problen some make it out to be.
Latest Posts
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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 , 17 minutes ago
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RE: Midea ASHP – how to set weather compensation
On the OAT, what you say is true, it is the value the s...
By cathodeRay , 21 minutes ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I couldn't agree more. This is a case where you buy as...
By JamesPa , 9 hours ago
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RE: Electricity price predictions
Community energy installations are a great idea, but th...
By Scalextrix , 23 hours ago
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Inventor (Midea) Heat Pump short cycling advice
Hello, I have a Inventor (Midea) 8kW with a 800meters Φ...
By immunity , 24 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 , 1 day 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 , 1 day ago
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@profzarkov Good to know in case it ever happens to me...
By bontwoody , 2 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 , 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: Ecodan software update. Real or scam?
@vinz86 Contact Mitsubishi and an engineer attends and ...
By ASHP-BOBBA , 3 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 , 4 days ago
