Last seen: Jul 4, 2025
@derek-m thanks for that - as an FYI our heat loss is 8774w and our emitters are 12,115w in power From this, on the coldest day of winter we would u...
@derek-m below is the 90th percentile coldest day where I live. Its very mild here as we are on the coast and I imagine this would have a big effect o...
@derek-m I do have a calculated heat loss with room by room radiators - would this be useful in your scenario? Our primary living is in one room (12m ...
@derek-m looks like it works. As an FYI you can use the formula FORECAST in Excel to estimate a data point from available data e.g. off number tempera...
As an FYI this is the temperature range where I live - as you can see we are mild pretty much the whole year, with the odd cold day. The coldest point...
@derek-m there is definitely some kind of issue with the file - wont open for me either
@derek-m that's amazing. Thank you! As an FYI I already copied most of that COP and temperature data into Excel, if that helps?
I've just found a whole section on heat pumps for Nest thermostats - quite interesting!
@morgan
@derek-m I've emailed the guy who installed the system to ask
@derek-m I would assume it controls both, as there is little point running the ASHP and not the central heating pump and vice versa. The Nest will cal...
@derek-m I don't think they'll raise the go price for the moment. I doubt there are too many people on it so I doubt it's casing many issues with thei...
Latest Posts
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RE: Testing new controls/monitoring for Midea Clone ASHP
Interesting. The minute data previously showed very di...
By JamesPa , 25 seconds ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump - I think the COP of 4.01 comes from the 's...
By cathodeRay , 8 minutes ago
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RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 24 minutes ago
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Ya can’t win! It is S*d’s Law!
I have been receiving invitations from Octopus Energy t...
By Toodles , 1 hour 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 hours ago
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RE: Big Changes Coming to Our Heat Pump System
@jamespa The dormitories at my boarding school (in Exet...
By Toodles , 6 hours ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 22 hours ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 23 hours ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I hear you on the locality issue @transparent, and I ag...
By Scalextrix , 1 day 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 , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
Er true, it should have read l/hr!
By JamesPa , 1 day ago
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@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 2 days ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 3 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 3 days ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 4 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 4 days ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 4 days ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 4 days ago
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 4 days ago
