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Last seen: May 18, 2026
@davesoa Sorry I meant to tag and respond to @cmartinbwmba in my response, whilst nevertheless commenting on your comments for the benefit of @cmarti...
Totally agreed (and hopefully this is the major contribution to energy) - but isnt that contained within
With 'Standard' there are 8 different heat curves (temperature levels) available, I think the idea is that you can change between these (My Vaillant h...
It is counter intuitive but that doesn't mean its wrong. All heat pumps work best if operated at the lowest possible flow temperature. The amount of...
Welcome Before getting to an answer on your consumption figures can you just clarify what is the area of your home and construction of current outsi...
@deltona I did draft a long point by point response but on reflection it isn't worthwhile. Suffice it to say that I find some of your wording quit...
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Latest Posts
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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 , 7 minutes ago
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RE: Sizing an ASHP; Heat loss and kW
@jamespa Since we have a heatpump currently; annual ele...
By GutoFfowc , 36 minutes ago
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RE: UK warm homes plan - how can it be delivered?
- Taxes on businesses are very high, plus bureaucratic ...
By bobflux , 36 minutes ago
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RE: Setback savings - fact or fiction?
Indeed, I can well imagine that a heat-pump based syste...
By PeterWurmsdobler , 3 hours ago
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Loud noises in the night - and one for the toolbox?
I was woken at 5am on Sunday to a very loud noise, akin...
By JamesPa , 4 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 4 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 , 17 hours 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 , 17 hours 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 , 1 day 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 ...
By Mars , 2 days ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 3 days ago



