Last seen: Sep 18, 2025
I have no idea how to account for this other than the obvious observation that it is likely to compromise hp performance. I'm not sure I'd describe...
I have no idea how to account for this other than the obvious observation that it is likely to compromise hp performance. I'm not sure I'd describe...
I think you missed the point. While the control period covers almost all the setback range of OAT, it a) has very few data points in much of that ra...
Interesting. It could be standing load or minimum possible output even with cycling (because it probably turns on every so often just to get a sense ...
Not really. The fact that the equation of best fit has a constant in it a fact, and without extrapolation it still means that the data points we actu...
I would have reached the same conclusion except that the scattergram of corrected IAT-OAT vs energy out (corrected for the thermal mass of the fabric)...
We are all doing this part time! Scatter plots of IAT vs heating energy out and IAT - OAT vs heating energy out suggest 8.5kW at -2/20 and with a va...
@derek-m @cathoderay OK, I think I may be getting some ideas, its by no means fully there but its going in the right direction, I think. I think...
@cathoderay @derek-m Health warning: This post doesn't contain any conclusions, just some more observations to trigger thought, pursuant to the overri...
I don't know is the simple answer. In my own mind I was thinking of two (practical) regimes, a 24 hour cycle and a 2 week holiday. But of course peo...
OK so here are some observations to ponder, in no particular order, and with no particular agenda (other than to try to explain the observations) ...
Latest Posts
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RE: Testing new controls/monitoring for Midea Clone ASHP
Hi all- does anyone know if "T1S" is midea language for...
By benson , 1 hour ago
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RE: Big Changes Coming to Our Heat Pump System
3: For retrofits, installers have no clue what existing...
By Old_Scientist , 3 hours ago
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RE: MCS certificate SCOP vs real-world performance
MCS SCOP 3.84 (design LWT of 47C) Actual real world S...
By Old_Scientist , 3 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@jamespa installer said today "Yeah unfortunately thay ...
By AdamK , 3 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 , 6 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 , 11 hours ago
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@jamespa Thanks. Yeah any adjustments Ive made at pr...
By cliffhanger , 13 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 , 2 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 , 2 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 , 3 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 , 4 days ago
