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Last seen: Jul 17, 2026
I have plotted myself that exact same chart, and have assumed that the FT levels off beyond the set points, which I think personally is a weakness in ...
Ah, yes, so the effect is to shift the WCC towards the cold end by about 5c, so that at -10c OAT your FT is around 46c? Sounds interesting. As @and...
This is very interesting and is something I was totally unaware of until now. If I understand correctly, you have adjusted the ends of the WCC which...
That's a similar sized house to mine, also fully insulated, which also loses about 0.4/0.5c per hour on average. I can only think that we lose heat ...
This is disappointing. Surely the engineer who called would have known this before he got in his van. I can only assume that he was expecting to fin...
@andrewj Watching with interest. I think that your interpretation of your data makes sense, in that the cold weather end of the WC curve does appear ...
@jamesPA TJ actually recommends the warm weather value should be +15c above target temperature so if you are aiming for indoor temp of 20c, then that ...
@jamespa Yes, I now get that the 50c top end of the wc range is too high, though I I can still try dropping the setting back for 5 nights (55 to 50) a...
@andrewj @jamespa I just want to thank you both for the discussion that you have shared over the past few days, it has been so informative. I have f...
@andrewj Bear with me, this is my first post on this forum although I have lurked for a while, and have just come across this thread. Given the numbe...
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Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 9 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 9 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 10 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 11 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 12 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 12 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 12 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 17 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 18 hours ago
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Although regulations may well vary from country to coun...
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 18 hours ago
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
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@energystoragetech The heat capacity of some...
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
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