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Last seen: Sep 4, 2026
@jamespa is really the expert because he has actually fitted and used them, but I found a Mitsubishi I-life Slim 170 Fan Assisted Radiator fan coil wi...
@lakey - very roughly, when going from boiler to heat pump flow temperatures, you need to double the effective area of the radiator to get the same ou...
I certainly had wall space constraints, which I mostly dealt with by using K3 rads in place of previous K2 rads. The individual room heat losses were ...
@lakey - welcome to the forum. An interesting question. I suspect (interested to hear others thoughts) in theory possibly, in practice rather diffic...
Neither do I. There are countless examples across many disciplines of received wisdom turning out to be received nonsense. Putting aside defrost cyc...
@cathyem1 - this isn't exactly beginner's level stuff, but it may nonetheless help you get your head around some of this. This is my system running on...
As I said before, this doesn't really stack up. You either: (1) run with weather compensation (curve 9) in which case you can't set the LWT directly...
@cathyem1 - those settings are a good enough staring point for a radiator system (no underfloor heating), which is I think what you have. What they me...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@batpred I couldn't get Heat Geek interested on account...
By ian33a , 4 minutes ago
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RE: Being screwed over by Volkswagen Audi Group
@majordennisbloodnok , I feel for you.. We had a simi...
By Batpred , 7 minutes ago
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RE: Vaillant Arotherm – Using Heating
@trebor12345 the space saver on the Pro is just a funny...
By Batpred , 42 minutes ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 2 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
It's all in and running!
By tomasmcguinness , 3 hours ago
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It’s been out a few days and Amazon has already attache...
By Mars , 4 hours ago
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RE: 7kW EV Charger Options Advice
Not much to add to Majors comments. Personally, the dis...
By Batpred , 7 hours 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 , 8 hours 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 , 11 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
Flow rate is set by pressure created by the circulator ...
By bobflux , 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 , 2 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 , 3 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 5 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 5 days ago
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