Last seen: Jan 8, 2025
Where is your water tank? I'm wondering how it gets so cold, way below room temp. Does it ever actually get to 50 deg at the taps?
Wow, quite a saga. Surely the fact that the ASHP could not deliver more than 25 deg flow in colder weather means is has a fault. Your house has almos...
14kW Ecodan, rural East Midlands, largish 1990 bungalow 21.5 throughout mostly 24/7. Heating and HW combined- December 699kWh COP 2.95 January 947kWh...
Looks good so far. The cycling may be the low flow temps rather than the energy (although they are of course related). Ecodans seem to struggle to m...
@gshpwoes scalding hot DHW suggests it's using an immersion heater. This would use a lot of energy. Does your GSHP also have a backup heater, i.e...
@davidalgarve The figures from the control panel and those from Melcloud should be the same, as yours are. I was talking about using external heat ...
I have used both on the same system and the previous internal measurements of COP were very similar to the current externally metered ones.
The high delta T (difference between THW1 and THW2) also supports a too low flow rate. Are all the ufh/radiators all getting warm? Even at an average...
@bontwoody I agree with most of your comments and I especially agree the installer is either making things up or is really incompetent. On the sizi...
I'm not sure about the relevant consumer law. It might be hard to prove it's not fit for purpose if it's able to heat the property and especially if ...
@bontwoody, it does seem excessive for a 100m2 house that has a heat loss in the normal range.
In the interests of science I'm going to take one for the team and switch to 24 hour operation. I'll then be able to compare with my setback data. I...
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@fillib It would be very interesting indeed to determi...
By JamesPa , 3 hours ago
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
@phoenix15 Sorry to hear that, we are all the way down ...
By ASHP-BOBBA , 6 hours ago
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RE: Yes, the "zoning with ASHP" topic again...
Yes exactly that. The UI presents it as adjusting the ...
By JamesPa , 10 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@editor Well last MAY i know was not the greatest for s...
By Andris , 1 day ago
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What's the problem you are trying to solve. The answer...
By JamesPa , 2 days ago
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Good luck. For what it is worth my system was very def...
By JamesPa , 2 days ago
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RE: Massive Electricity Cost for Running My Air Source Heat Pump
I agree @mark-h The Building Regs are now very readable...
By Transparent , 3 days ago
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RE: Help me understand my Mitsubishi Ecodan system
@carpenterstation When changing settings in the ser...
By RobS , 3 days ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
Cynically I would suggest its there to protect the inst...
By JamesPa , 3 days ago
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RE: Ecodan Legionella cycle - immersion heater problem
Thanks for letting us know @clockworks I admire your ...
By Transparent , 4 days ago
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RE: Revised version of MCS-020 (noise standards for heat pumps)
As you say this is no change, which I personally think ...
By JamesPa , 5 days ago
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RE: What happens when the outside temperature exceeds the upper WC point?
@editor not via the WC curve but as @old_scientist ment...
By bontwoody , 5 days ago
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RE: MHHS and Heat Pump compatibility
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By Scalextrix , 5 days ago
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I did not know this concept, although others might. I...
By Morgan , 5 days ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk it's probably filtering different providers in t...
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RE: why solar diverters for HW instead of the heat pump?
I should probably add to my comments above that, whilst...
By JamesPa , 6 days ago
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RE: Commencing on an ASHP Installation Process
Lots of reading and questioning which the background ma...
By JamesPa , 6 days ago
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RE: The Great British Heat Pump Quiz
Not sure how that happened 🤣 I suspect that it ...
By Mars , 6 days ago
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RE: Help with understanding my Mitsubishi Ecodan air source heat pump
@patch I think @ashp-bobba gave you some great pointers...
By SUNandAIR , 1 week ago