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Last seen: Oct 8, 2026
Half time during a cup final?
The last photo is defrost for sure (or cooling, but presumably not at this time of year). You can tell because flow < return.Once you get close to...
@uknick Some very useful real world data from @old_scientist very relevant to your case. If your loss is really 3.5kW I think its less than 50% pro...
Interesting and possible I suppose. Of course this behaviour might be firmware-version dependent. I have never tried turning it off, but I think I w...
Very sensible. @old_scientist has very well described the design process starting with heat loss. You seem to know your whole house loss is ~3.5kW, ...
Mostly I find Vaillant controls good, but occasionally not. The legionella cycle warning (hot water) seems to come on before the cycle runs for examp...
No it's not and i think what yhey said is nonsense (how would ut work?) Boost is, so far as i have been able to tell, a one off 'on'. However I thi...
Not if you are systematic and patient. The high OAT end is logically something like 20 at 20, or more practically something like 25-27 @ 16 or there...
OK here goes (you did ask!) Radiator output is dependent on the area of the radiator and the temp difference (lets call it DeltaT) between ...
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Degrees of Separation
Latest Posts
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RE: Getting closer to a finished Haier system
Apart from sealing the external Primary Pro joints and ...
By Singlespeed , 20 minutes ago
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RE: Missing flow temperature in Heat Geek proposal
@majordennisbloodnok I think the reason for my frust...
By Jo2255 , 2 hours ago
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tepeo ZEB UK Support & Info Thread
Heat batteries offer another way to electrify home heat...
By Mars , 4 hours ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
@jamespa Hope someone tries it! As a consumer, I woul...
By Batpred , 21 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Our latest Homeowners’ Q&A episode has just dropped...
By Mars , 24 hours ago
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RE: Vaillant ecoTEC Plus with sensoCOMFORT and weather compensation
Yes, its described in the sensocomfort manual. Its als...
By JamesPa , 24 hours ago
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RE: Heat Geek installations: share your experiences
My summary, highlighting the oddities.
By Batpred , 1 day ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
What a day yesterday! Two podcasts recorded, brilliant ...
By Mars , 2 days ago
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RE: Tesla Powerwall (2) Calibration Cycles
@davesoa I’m rather a Luddite, but when I was running I...
By Papahuhu , 2 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
I too use AI when researching online. It's able to co...
By Transparent , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
There is now a new Secretary of State for Energy Securi...
By Transparent , 3 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Looks like an impressive bit of kit. Just ...
By Batpred , 3 days ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
The idealist in me says pioneers in this space should b...
By Batpred , 3 days ago
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RE: How should the Boiler Upgrade Scheme be reformed?
Ah, that makes sense when a combi is in place. The boil...
By Batpred , 4 days ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
@bobflux Thanks, that gives me something to check the i...
By Paul1098 , 4 days ago
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