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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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Degrees of Separation
Latest Posts
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RE: Buffer tank on a 2 x 14kw Ecodan system
@fosterl2, ah, that changes the picture somewhat. I’d a...
By Mars , 9 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 12 hours ago
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RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 14 hours ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 1 day ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 1 day ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
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Six books in three years and I think I’ve now covered j...
By Mars , 2 days ago
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 2 days ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 3 days ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
By Rob of York , 3 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
By Transparent , 3 days ago
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
By cathodeRay , 3 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
By JamesPa , 4 days ago
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I think that CCGT plant in Lingen is more likely to suc...
By Transparent , 5 days ago
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