Last seen: Sep 18, 2025
Kev - your room temp line looks suspiciously straight to me. It is almost a perfect flat line, with a minute wobble at about 0830. My room temp measur...
That's what I thought, it's the heat pump that 'inverts' to become a fridge, and uses the warm exhaust gas from the fridge to do the defrosting (put l...
Good point about GSHPs. It would still be interesting to know how other countries deal with ASHP frosting. Maybe they adopt @batalto's solution, choos...
Correct, I was going to include that but it complicated the post more than I wanted, and furthermore at -5 and below the main problem is the heat pump...
Installers understandably enough tend to have favoured brands, familiarity and all that, but a good one will readily consider another brand if it is m...
24-26 degrees is a very high medical requirement. The evidence is far from perfect, but the findings suggest a minimum of 18 degrees, even for older p...
I am familiar with python for basic things but might be inclined to use R for charts, done using cairo_pdf the output can be very neat. But the proble...
Thanks @scrchngwsl that and the rest of your post is a very clear description of how a 'learning' system might work. I'm not sure why I put learning i...
I agree, that's the point I always made, including the second part, ie I knew full well an old leaky building costs more to heat, whatever the fuel. ...
@mjr - I agree, and said earlier, it does get indirect feedback via the RWT, and yes, I agree, a bigger difference all other things being equal betwee...
This is not necessarily the case. Which uses more energy: keeping my house at 18 degrees all day every day for a week, or heating my house to 18 degre...
Latest Posts
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RE: Help me keep the faith with my air source heat pump installation
@jamespa if I remember the insulation has a notch cut i...
By AdamK , 4 hours ago
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RE: Big Changes Coming to Our Heat Pump System
Me too, but still some people look at me as if I'm mad....
By JamesPa , 5 hours ago
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RE: MCS certificate SCOP vs real-world performance
That may be contributing to lower than expected SCOP. ...
By JamesPa , 6 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
This is the sort of thing I mean. I've added the T1S va...
By benson , 6 hours ago
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RE: Mitsu PAR-WT60R Wireless Controller - options
How it does it's job is something of a mystery although...
By Abernyte , 13 hours ago
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RE: Powerwall 3 or Myenergi or something else?
Yes I was thinking of outdoor, IP65 batteries with buil...
By Temperature_Gradient , 17 hours ago
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@jamespa Thanks. Yeah any adjustments Ive made at pr...
By cliffhanger , 20 hours ago
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RE: How to choose Towel Rails for an ASHP
@rob-nezard yes absolutely. Here is the link and a pho...
By GrahamF , 2 days ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 2 days ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
Unfortunately I'm not that well connected 😂 ...
By Scalextrix , 3 days ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
It is interesting to see what our new Grant Aerona 290 ...
By GrahamF , 3 days ago
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RE: Midea ASHP – how to set weather compensation
I noticed that too and thought the same thing, but then...
By cathodeRay , 3 days ago
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RE: Ya can’t win! It is S*d’s Law!
@old_scientist If IOF is still running next late spring...
By Toodles , 3 days ago
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RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 3 days ago
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RE: Who’s Caved and Switched the Heating On Already?
We've been running our Ecodan system, installed in June...
By Sheriff Fatman , 4 days ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 4 days ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 4 days ago
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Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 5 days ago
