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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...
Latest Posts
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RE: Estimating true heat loss from twelve months of consumption data
Hi @ian33a you could do your own heat loss calculation ...
By Judith , 3 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@djh ah, I have never seen this before, interesting ide...
By ASHP-BOBBA , 3 hours ago
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RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 4 hours ago
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RE: Setback savings - fact or fiction?
@jamespa — this version may be marginally better: &nb...
By cathodeRay , 6 hours ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 7 hours ago
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Current metrics - DHW target set to 47c
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RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
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RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 18 hours ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 19 hours ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
That would be abnormal but I cant see from your charts ...
By JamesPa , 19 hours ago
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RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
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Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
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RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
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