Last seen: Jun 17, 2025
Hi @derek-m and @hotheat So just for fun... during the day I switched to fixed flow rate to see where our cycling would start at Ambient 10C. It’s j...
In theory energy used shouldn’t be the same since longer operation should be more efficient and less wear on the compressor. What would be really wort...
@hotheat The answer to your question would almost certainly be provided if you had access to the energy data which is missing. If you had the opportun...
@hotheat hi, I’ve worked out your T50 heating capacity of your radiators and added the extra rad you’ve had fitted. You have approx 25.3 kWh T50 ca...
Hi @hotheat, it’s been nearly a year since you started asking questions like the one above. I’ve seen your recent posts and looking at your system you...
@editor Just some notes and Ideas.... Maybe a bit of easy maths can be interesting to the wider public, as well as educational. example A: Whe...
I was wrong. It didn’t cycle until 2.10pm There’s was a bit of an increase to the flow temp at about 12.28pm But the room temperature has rema...
@harriup On our system this morning, set temp has been passed by 0.5c and the current cycle is continuing. It is about 90 minutes long and still run...
harryup it looks, to me, like a clever way to modulate when the HP Can’t operate at a low enough flow temp. It’s clearly shortened the cycle to 30 m...
Very curious, this Rod Ive always understood from heat geek video that the poorest efficiency stage is at the beginning of a HP Operation cycle and ...
James, can you remind me what is your definition of setback, in terms of temperature? What are you defining as target daytime room temperature and wha...
a second look for derek
Latest Posts
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RE: Ecodan consuming 100kwh per day in new build!!!
PS to above. I just looked again at the photo you post...
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RE: Plug and play solar. Thoughts?
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer great you located the source of the issue a...
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RE: Location of hot water isolation valve on cylinder
@rossowheels if you isolate the water supply in it will...
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The Importance of Radiator Balancing for Efficient Heating: Introducing the Flow Regulating Valve
It’s fascinating to watch how low-temperature heating i...
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@heacol, if you're around, can you please provide some ...
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RE: Servicing Hitachi HP in rural Somerset
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RE: Heating coming on when not required
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RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
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RE: Heat pump solutions and/or installer recommendations for France
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Have your say in the Renewable Heating Hub Awards
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RE: Mitsubishi cycling while on chilled water output
@iaack yes there's no denying that cold air sinks! I s...
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RE: Weather compensated secondary circuits with Biomass
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If you are thinking of heating on the immersion conside...
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