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Last seen: Oct 16, 2026
I brought my old R407C water to water heat pump to the local recycling center. They accept heat pump related things, old mobile aircon units, fridges,...
So true! Note I wasn't criticizing your message. Simply felt like ranting, because it's ridiculous we have to jump through these hoops to obtain bas...
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!
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Degrees of Separation
Latest Posts
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RE: Cooling/heating with one unit
"The way we use A2A on a cheap overnight EV tariff is t...
By mrkfm , 18 minutes ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
We have ‘signed on the dotted line’ today for a Panason...
By Toodles , 54 minutes ago
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
...or it was there and was lost thanks to laziness and ...
By Majordennisbloodnok , 1 hour ago
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@bobflux Thank you for your response. I am trying to ...
By RonV. , 1 hour ago
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This post is about how I successfully configured a buff...
By Tony.Stolz , 5 hours ago
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The installer visited yesterday and suggested the noise...
By JamesChatz , 6 hours ago
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RE: Heat Geek installations: share your experiences
I struggled with this problem as well. An independent t...
By L8Again , 7 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 9 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 9 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
@temperature_gradient Isn't that just describing a regu...
By Prunus , 10 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 22 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 23 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 24 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 1 day ago
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