Last seen: Aug 6, 2025
Our house has a solid concrete floor cavity walls with old foam insulation and 300mm of insulation in the roof. It’s 190m2in area and 1950s build. The...
I’m not as expert as James but we have Vaillant and are happy with the heat level and wince a bit at the cost when it’s this cold So you ought to be...
While you are pulling the data together that James needs to help you should also download the MyValliant app. It tells you a lot about your system you...
Yes compulsory 3 phase in New Homes Standard is best!
I read this thread since I wanted to know what a reverse ferret was! Please assist. I totally agree with @transparent recommendation of (I assume) f...
an update now the weather is much colder and we lost the concept of solar gain months back. We gradually had to increase the curve to 0.65 to compensa...
@johnnyb that’s very interesting to read!
On this forum with advanced monitoring available a Mitsubishi user whose pump was oversized recommended the cloud based auto-adaptation function to im...
I agreed with your approach on the other thread and so pulling out the general case is a better way of capturing it.
I feel the best first question after establishing that a heat pump is over-sized (even massively so say 3x) is does that affect efficiency? John Can...
it’s much more efficient to run a heat pump continuously but for everyone in the end it’s about money. So if you were able to run only on the cosy che...
@iraknic have you established that you can hear your system? Ours is very much quieter than the old gas fired boiler, no radiator creaking for example...
Latest Posts
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New Vaillant aroTherm Plus in black - When will it come to the UK?
It looks like Vaillant are updating the aroTherm plus l...
By Sandy , 2 hours ago
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RE: Planning Permission May 2025
Fair enough. I have read the legislation and MCS020a ...
By JamesPa , 2 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
Ive called most of them over the years. By far the best...
By dgclimatecontrol , 3 hours ago
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RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?
An update on the Heatsava. It is the most difficult thi...
By heat-pump-newbie , 7 hours ago
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RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?
I've certainly seen that on their Ts & Cs page but ...
By Majordennisbloodnok , 1 day ago
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RE: ASHP heat output monitoring
@carlo - not much better, is it. It looks more like a u...
By cathodeRay , 1 day ago
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RE: Renewables & Heat Pumps in the News
this document extensively describes (in a non-blame, ne...
By Judith , 1 day ago
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RE: Ecodan - Legionella Operation Time and Target Temperature
Once the white plastic cap is removed, my immersion loo...
By Old_Scientist , 2 days ago
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RE: Replacing Refrigerant on Mitsubishi Heat Pump
@dgclimatecontrol I don't know, but they were not happy...
By DavidAlgarve , 2 days ago
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RE: Why do we need pressurised systems?
A good question @toodles. My old open thermal store and...
By AllyFish , 2 days ago
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RE: 300 Liter Tank - Do I have to heat it all?
Cross references for @martingale Background discussi...
By Transparent , 3 days ago
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@ecobaker May I ask a question of you please. I too hav...
By Papahuhu , 3 days ago
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It's unclear to me how the Smart Control project work b...
By Transparent , 3 days ago
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RE: Have Consumers Been Lied to About the Efficiency of Heat Pumps Made in China?
@pavel, this isn't about discrediting Chinese products....
By Mars , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
We had an excellent four months (11/3 to 15/7) generati...
By JulianC , 6 days ago
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RE: Is this just haze or something more?
I think the present somewhat cooler hazy days show the ...
By Judith , 6 days ago
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
All noted and accepted and as I say I am sorry that you...
By JamesPa , 6 days ago
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I think it is very much me that is sitting outside the ...
By Grantmethestrength , 6 days ago
