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Last seen: Aug 16, 2026
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...
The "thermal comfort" we feel is a mix of air temperature and infrared radiation received by the body. This radiation comes from every surface in the ...
Not a good idea to use just a towel rail during summer for two reasons: 1) Pipes will still radiate heat, either wasting power or making the house t...
I installed the air source heat pump in January 2026, it replaced a dead ground source heat pump. I did not use it in the way the forum recommends: ...
My LG does the same: when turning it on, it's below the flow temperature setpoint, because the water cooled down. So it goes "Oh no we're too cold, le...
Assume flow from the heat source is higher than flow to the load. 1- Left is what happens "in theory on paper". 2- Middle is what actually happens...
You don't have to run the heat pump with a deltaT of 5°C, you can just run it at deltaT 10 or more, with lower flow rate. 5°C is a bit more efficient,...
Hole diameter is small but hole length is also very small. So there is flow restriction, but only over a short length, resulting in much less pressure...
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Degrees of Separation
Latest Posts
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@editor Thanks for your response and recommendations. ...
By DavidB , 3 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 16 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu Of course, in the way of such things, there a...
By Toodles , 23 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
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RE: Flushing system, cleaning and inhibitor
Yes, my 50L volumiser uses the two lower ports, so ther...
By Old_Scientist , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
By Papahuhu , 4 days ago
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RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
By Majordennisbloodnok , 5 days ago
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 6 days ago
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I meant to say I cannot register my kit at Energyplus… ...
By Batpred , 6 days ago
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