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Last seen: Apr 19, 2025
@jamespa I used an assumed indoor temperature of 18C. Is this what you mean by nominal heating temperature? If i reduce the indoor temperature to 15.5...
@jamespa Thanks, that's hugely helpful. I've been able to calculate an estimated heat loss coefficient of roughly 0.344 kW/°C and an estimated peak he...
@jamespa Thanks very, helpful and i appreciate you taking the time to respond. As you rightly mention, i'm taking this all very slowly as i want to ge...
@editor Thanks - i've managed to perform a smoke test. The conditions have been ideal for testing as it's one of the few days where there is next to n...
@jamespa It was that HeatGeek video on air recirculation that gave me hope on the side alley! The house was built in 2003 with cavity wall insulatio...
@editor Thanks for such a quick and detailed response. Glad to hear it's not a definite no. I'll do a smoke test tomorrow. Cheers
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RE: ASHP Capacity loss with aging
This is a good question. The short answer IMO is yes, c...
By Mars , 1 hour ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
Welcome @simon_jm, and this is not a dumb question at a...
By Mars , 2 hours ago
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RE: Loud noises in the night - and one for the toolbox?
Brilliant bit of lateral thinking, and a useful one to ...
By Mars , 3 hours ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
By RobS , 4 hours ago
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RE: UK warm homes plan - how can it be delivered?
@bobflux My view is that regulation for consumer pro...
By Batpred , 6 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 7 hours ago
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
By JamesPa , 11 hours ago
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Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Hello all, We have just had a Grant Aerona R290 insta...
By TaffontheTaff , 12 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 16 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 1 day ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 2 days ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 2 days ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
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