Last seen: Jun 13, 2025
@sicky 72m2 for the whole downstairs, it was very much a rough guestimate on price when I asked about other options instead of rads.
@jamespa yes thanks, I've been quoted a min SCOP of 3.60, so as long as I could get cheaper electric than 22p I think it starts to pay it back. Anothe...
@jamespa I had one company design at 55 because I was struggling for radiator space... I've had others pull out because I couldn't heat the room prope...
@jamespa my room heat loss is approx 2.4-3 kW (house 7-8 kW) depending on who's done/what tool they've used. The room is a complicated extension with ...
@jamespa I think I need between 2.4 kW and 3kW over 2 600mm spaces for design conditions, so 21 internal and -3 OAT. I currently run at 18 in winter, ...
@cathoderay @jamespa thank.you for the suggestions on a fan coil, they're no cheaper than a large aluminium Eskimo radiator or 5 column cast iron ver...
Well, my current room is heated by 2 off 1800*440 designer rads. I estimate their output to be 1500 W each at dt50, my heat loss is calculated to be b...
@cathoderay thank you, I only have one thermostat for the house hence looking at the room data. I doubt my house is the same temperature throughout, i...
Could a method to calculate heat loss in a room be to set the thermostat on max and measure the max temperature the room can achieve at a measured OAT...
Latest Posts
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
@jamespa I agree that people should use measurements of...
By GrahamF , 27 minutes ago
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
@radwhisperer Thanks but that is definitely not a mixer...
By Jancold , 3 hours ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
As I understand the situation, Elmhurst Energy trains e...
By Transparent , 7 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
OK thats cheap, the commercial price seems to be £400 p...
By JamesPa , 8 hours ago
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RE: Solar inverters - where does the energy go when clipping?
I think I must query the sources on which Greenmatch ha...
By Transparent , 11 hours ago
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RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire
This is how I run my Samsung 12kW ASHP with a 3rd party...
By Old_Scientist , 12 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay thanks- yes will keep an eye out for the de...
By benson , 1 day ago
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RE: Renewables & Heat Pumps in the News
Hoping so as well! I am no specialist. The language use...
By Batpred , 1 day ago
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Do you need the DHW tank as high as 50°C @egp01 ? Ha...
By Transparent , 1 day ago
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RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@old_scientist Just to say that during our retrofit, we...
By Toodles , 1 day ago
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RE: Daikin Altherma 3M ASHP and British Gas Hive Home
We have a Daikin EDLA08 8kW monobloc (DHW is handled se...
By Toodles , 1 day ago
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@old_scientist @jamespa So this was last nights DHW r...
By bontwoody , 1 day ago
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@springswood we install these nationwide and I have the...
By dgclimatecontrol , 1 day ago
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RE: DESNZ doing a survey which asks the right questions!
Fair comment. I have a feeling that ratings more gen...
By JamesPa , 2 days ago
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Thanks! My consumer unit collection is ready with the W...
By Batpred , 2 days ago
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RE: Designing my house system with a mix of air to air and air to water
@jamespa Cheers James, it's great reading. In quite a f...
By pipebaron , 2 days ago
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RE: PV Panels on roof in Conservation Area
If there is any way you can determine daily oil consump...
By JamesPa , 2 days ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
attached is prelagged in case indicates anything. &nb...
By Crimson , 2 days ago
