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Last seen: Jan 29, 2026
@jamespa I should have mentioned my flow temperature is fixed at 35C which you can see in the photo. I quite agree about contraflow but have failed...
I happen to have a Heat Saviour (HS)in my system!After nearly 4 years I have quite a lot of daily data on both electric usage and outside temperature....
The plate heat exchanger is made in Poland. Apparently they specified it that way, but maybe for other applications with higher temperatures. The inst...
@sunandair @jamespa My installer came to fit a more appropriate size of secondary circulation pump this afternoon (no charge, but he took the industri...
We will have to see. Sometimes it is better to start with the easy stuff and get that right. The technology then gets good press and the installer bas...
I’ve had another priority: our Mozart Requiem and Coronation Mass concert to focus on - lots of musical dynamics! Tomorrow the installer is supposed ...
Unfortunately it is next to impossible to modulate efficiently over the entire range of outputs. However, I agree that unnecessary oversizing is not g...
I find John Cantor’s video most useful for explaining efficient running of a heat pump. He stresses that cycling is not necessarily a bad thing a...
I object to you taking everything out of context. I certainly won’t waste time explaining anything to you. Please don’t quote me in misleading ways. ...
@fazel @alan-m yes setting the WC lower does make it run at a lower target temperature in WC mode. If I try to set it lower than 35c manually it doesn...
I show the temperature cycles, you ask about the electric, I say the electric cycles like the temperature, you continue….it’s all simple.. watch John ...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I started to record oil usage per month on ...
By ian33a , 52 minutes ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 4 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 9 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 4 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago
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