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Last seen: Jan 20, 2025
Thanks Johnmo that's very interesting. I ended up doing a test over a week in dual mode, now I want to try a run with boiler only but need to figure o...
Thanks Robi. No my gas boiler doesn't have any weather compensation. I've just run it for past 36 hours to test at 55 deg ie the most efficient cond...
Many thanks Mars, that's really interesting and helpful. Our gas powered CH system was subjected to an add-on ASHP installation with a buffer tank w...
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Latest Posts
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RE: UK warm homes plan - how can it be delivered?
May partner and I are disabled and can't work. We would...
By Falesh , 25 minutes ago
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RE: Loud noises in the night - and one for the toolbox?
So that phenomenon is usually referred to as "water ham...
By Transparent , 34 minutes ago
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RE: Sizing an ASHP; Heat loss and kW
@majordennisbloodnok Thanks for your reply. I agree wit...
By GutoFfowc , 52 minutes ago
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RE: Lower electric tariffs for heat pump users
@richard24738 Indeed, Cosy tariff wouldn’t work very we...
By Toodles , 1 hour ago
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RE: ASHP Capacity loss with aging
@editor Just a thought really but, if the heat pump is ...
By Toodles , 2 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
Hi Mars,Thank you so much for your response,I really ap...
By Simon_JM , 7 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 , 16 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 19 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 , 1 day ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 1 day ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 2 days ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 2 days ago
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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 , 3 days ago



