Last seen: Sep 15, 2025
@transparent @sicky Just a couple of observations 1. Sadly I would say the standard of work is exactly what one expects, this is either the b...
Im not an expert by any means but, in the absence of any detail to the contrary, buildings are normally built to the standards required by building re...
For me the sole purpose of the glycol or antifreeze valves is to provide backup protection if the power fails for any length of time; the freeze stat ...
Most heat pumps have specs on minimum clearances, perhaps check this. That said I agree with @transparent that an open frame construction would be ...
Agree. I changed mine because I reheat only once per day, which is fine so long as hysterisis set too high cause it to skip a cycle. However you see...
Thats interesting and exactly what one installer said to me. We seriously need to do a survey of door blower testers - @editor have you any contacts...
Based on my own experience there are installers out there who will use more realistic values for ACH and/or take note of measured data. They are in t...
My 200l Vaillant DHW tank falls from 70 to 65 (immediately following a legionella cycle) in about 11 hrs, just shy of 0.5C/hr. Yours is quite a lot f...
Completely agree that 'efficiency' is strictly incorrect terminology. The efficiency (of a heat pump) would be (something like) heat out/theoretical ...
I completely agree based on my personal experience, and I have now heard a sprinkling of installers say this, but is there any wider evidence that you...
... If as a result you can turn the flow temp down then that could make quite a difference!
Latest Posts
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RE: Heat Pump Damage on install - useable or dealbreaker?
Definitely that one, more important than the fins proba...
By JamesPa , 3 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@benson - looks like good work, and thanks for posting ...
By cathodeRay , 24 minutes ago
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RE: Electricity price predictions
@diverted-energy sounds like good tariff for you. Octop...
By JulianC , 12 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
In the last week, the external temperature in south Man...
By GrahamF , 14 hours ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 14 hours ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 15 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 , 17 hours 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 , 18 hours ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump Referring to the problem of rooms with diff...
By Tasos , 19 hours 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 , 20 hours 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
