Last seen: Sep 16, 2025
@econonsense - the heat loss is an essential part of the design process, it is used to determine the size of heat pump. I should mention in passing th...
@econonsense - that doesn't sound right at all. Can you give more details - size and make and model of heat pump, installation details, heat loss calc...
First defrost cycle of the new heating season (LWT drops below RWT): Note also how the 60min trailing COP drops from about four 12 hours earli...
It is not either or, you can use both weather compensation and a timer. In my case, I have a fully open system (all TRVs always fully open, rads bal...
Latest Posts
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RE: Big Changes Coming to Our Heat Pump System
@editor your engineer's attitude is truly horrifying. ...
By GrahamF , 3 hours ago
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@cliffhanger - seriously though, I have no idea. What I...
By cathodeRay , 5 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 , 6 hours ago
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@mixergy Thanks for the update, I would appreciate some...
By bontwoody , 7 hours 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 , 11 hours 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 , 13 hours ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
I've never physically seen it, but I seem to recall som...
By cathodeRay , 13 hours ago
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@jamespa Ours is a Daikin EDLA03 8 kW and the Delta T =...
By Toodles , 14 hours 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 , 1 day 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 , 1 day ago
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RE: Electricity price predictions
Those of you on Agile will do well tomorrow; there are ...
By Toodles , 1 day 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 , 1 day ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 2 days ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 2 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 , 2 days 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 , 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 , 4 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 , 4 days ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 5 days ago
