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Last seen: Sep 5, 2026
Dehumidifying is a side effect of cooling the air, so pretty much all air conditioning units are also dehumidifiers... It blows air over the evapora...
About the original question: Flow rate for MVHR is adequate for ventilation, but way too low for air conditioning. Heat capacity of air is only 12...
Yeah refrigerants are complicated. They need to have the right characteristics (enthalpy, pressure, temperature at the vapor/liquid transition) and al...
Next winter, if you haven't installed a heat pump, I second James' recommendation: condensing boilers can run at quite low flow temperature, which is ...
- Comfort and silence (for heating) - Heat storage with radiant slabs - Can be maintained, modified, upgraded DIY - All the tech and regulatory ...
Mine only complains if flow is catastrophically low, otherwise it simply works at higher deltaT, up to 10°C or even 20°C, with a corresponding drop in...
+1 #4 Primary pipes too small so not enough flow, but this one is easy to catch
Awesome! Love the title 🤣
If you took a cheap monobloc A2W heat pump and put it indoors, it'd do exactly what you want, except look pretty perhaps...
This amount of brown in a 2 year old installation would be very worrying as it would indicate quite a lot of oxygen ingress rusting the inside of the ...
If an old radiator was reused, perhaps it was full of sludge that then spread through the circuit. Are there any points of oxygen ingress into the s...
So far, mine hasn't defrosted yet, and the radiant ceiling was finished last month and isn't connected yet. I'll have to wait for next winter to see h...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@rob-of-york Interesting that you mentioned this as an ...
By ian33a , 28 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 , 2 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 , 7 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 , 22 hours 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 , 22 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 23 hours 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 , 1 day 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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