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Last seen: Jul 27, 2026
I'm an electronics engineer, this is the kind of documentation considered appropriate for a 10 cents chip: about 50 pages describing all the character...
Does that include vehicles? Electric cars just slurp energy on an entirely new level. When I put in 11kW of inverter power I wondered if I was over ...
So 5m3 of mortar. With density 1.6-2 and thermal capacity 800-1000 J.kg/°C if the slab heats by 1°C that means 1.7-2.7 kWh is stored. So you can sto...
Agree with everything James said. With a heat pump + UFH + good insulation, if the installation is not botched you're pretty much in the ideal case ...
That would be a very nice solution, leverage the existing aircon, without adding extra complication to the air to water heat pump. But if the aircon...
Did you count heat loss due to ventilation? About that... if there are bathroom(s) in the intermittent occupation rooms, could be useful to be able ...
Best performance occurs with PV string near inverter nominal input voltage (360V). So panels should be selected to not exceed max inverter MPPT short ...
If it's only a few days a year, I'd recommend a second hand mobile air conditioning unit, those with caster wheels, can be had for 150€ for 3kW coolin...
Cooling a slab works fine, I tried back in the day with the old ground source heat pump. I did it passively, without running the heat pump, since the ...
Yes it's a shame the manufacturers make this vital information so difficult to access!
IMO "Oversizing the heat pump" is a bit of an over simplification. What really matters is what water flow rate the heat pump likes, and its modulati...
First please check (and share) the cylinder documentation. For example while searching for "Vaillant 150l cylinder" I came up with this VIH RW 150/5 C...
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Degrees of Separation
Latest Posts
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RE: Jokes and fun posts about heat pumps and renewables
@transparent I’ve heard that that is why American cars ...
By Toodles , 4 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Have either quote provided room by room heat loss calcu...
By Old_Scientist , 18 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
By Papahuhu , 2 days ago
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RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 2 days ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 2 days ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 3 days ago
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Who did the Freedom Heat Pump cloud server and what did...
By Mars , 3 days ago
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RE: Who's your electricity provider and what's your tariff?
Reading between the lines of what octopus are doing wit...
By JamesPa , 3 days ago
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RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 3 days ago
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I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 3 days ago
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@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 3 days ago
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@editor wellvery comprehensive answer. I will get all i...
By Keithb , 3 days ago
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RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
all good advice I will follow this up
By PaulC , 3 days ago
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Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
By bobflux , 4 days ago
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