Last seen: Sep 14, 2025
I just ran the numbers through my WC simulator. This calculates, based on Ecodan R32 data, the efficiency gain from various WC curves relative to fix...
It is a cop out and as I say upthread will incur a penalty of 3-6% or more if it's more than a a couple of degrees out. However installers don't was...
This is the 'alternative method' I refer to in a post above. Care needs to be taken with the choice of room stat. Some 'clever' ones, as they appro...
According to his post a few pages back the speeds of both pumps are controlled by an Arduino based system. I did ask what behaviour it targets but go...
Thanks. Doing this would, as you say, eliminate another variable and I did consider suggesting it (and, if this were my system, it is what I would do...
@derek-m - You mean like he has been doing for the last 76 pages, and mine, and that of several other very kind folk? @cathoderay - I tried that ...
As you have not responded to the very simple question asked in my immediately previous post, I can only presume that you haven't bothered to read it. ...
Noted As posted above your sharky data, or your interpretation of it, is incorrect. Thus your 'water power' is likewise incorrect. Sensor 3 i...
Im glad you are warm however the water power as you present it from the sharky (and thus your claimed COP and real COP) is nonsense, as explained seve...
The following is from page 14 of the manual This icon appears on the picture you posted. I am still not convinced that some sort of water law...
Thanks Looking at consumption first your baseline is about 500kWh/month is summer which annualised is 6MWh/year. That's double the UK average which...
The second panel of the controller with the 0 and a graph in it suggests it's operating according to water law (weather compensation). However dependi...
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RE: Midea ASHP – how to set weather compensation
@pash44pump Referring to the problem of rooms with diff...
By Tasos , 58 minutes 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 hours ago
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RE: Big Changes Coming to Our Heat Pump System
@old_scientist, our system was royally bodged six years...
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
@scalextrix You're assuming that the source of the comm...
By Transparent , 2 hours ago
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@jamespa thanks, I appreciate the offer. For n...
By DREI , 16 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
I have 3 women in the house, 2 little ones, so my heati...
By DREI , 21 hours ago
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@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 22 hours 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 , 2 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 , 2 days ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 3 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 , 3 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 , 3 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 , 3 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 , 3 days ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 4 days ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 4 days ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 5 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 5 days ago