

Last seen: Mar 10, 2025
@old_scientist Yes, Cosy does seem to be the better option at present; though I may re-evaluate (they can’t touch you for it!) in the Spring. The Agil...
@chandykris And all we need now is fairer pricing for our green energy! We are all doing our bit, but TPTB seem to be dragging their feet don’t they? ...
@vsmith1 It’s interesting that you have a 100 litre hot water tank. I am assuming that you applied for and received the BUS? MCS guidelines required u...
@vsmith1 Thos COPs sound quite respectable, the lower one illustrates how flow temperatures influences efficiency, those extra~20 degrees required to ...
@grantmethestrength The new to you flow valve is summat I know not of at this stage but, my gut feeling is that if it is in the water circuit, is part...
@cathoderay Indeed you do need to look at the overall figure over time. At present, our pump has a COP below 3 and we are consuming an average of ~2kW...
@jamespa There again, I have my secondary pump set to match the average flow rate from the heat pump system; this is 15 lpm. When the pump speeds up (...
@cocopops Homely supplied my kit to the installer who came along to do the install; this was a bit of a learning experience for the installer as it wa...
@grantmethestrength Oh well, pump speed investigations then! Toodles.
@grantmethestrength Even with my poor eyesight, my immediate reaction when I saw the photo before reading your text was that that guage looks as thoug...
@grantmethestrength Well done, you are making progress now, I can’t be sure but I suspect the pump is running faster (harder) than it might need to. T...
Well, exactly what I said; my visitor wrote to thank us and said “It was very nice to meet you both, and thank you for the extremely helpful and co...
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Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@jamespa Agreed. I think it’s a case of much over muchn...
By Mars , 2 hours ago
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@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 2 hours ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@bami I think if the heat loss documentation matches a ...
By bontwoody , 3 hours ago
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RE: What is the best strategy for operating a very oversized heat pump?
@jamespa I'm afraid that's over my head but if anyon...
By IRMartini , 3 hours ago
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RE: Setback savings - fact or fiction?
And here in case any one wants it is the code I used in...
By cathodeRay , 3 hours ago
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RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Definitely its in the 20xx FSVs. Conversely it may be...
By JamesPa , 4 hours ago
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RE: Towel rails. An unexpected final hurdle
We have both Normal Rad for heating the room and then a...
By IRMartini , 5 hours ago
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RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 7 hours ago
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RE: SolarPV tables / online calculator
I'd be interested what others find whilst using that we...
By Majordennisbloodnok , 10 hours ago
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RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 21 hours ago
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RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 1 day ago
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RE: ASHP and heating issues in new build house
That’s good gives you more capacity. It made me think, ...
By Terry1812 , 1 day ago
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RE: Seewet manhole cover within r290 exclusion zone
Thanks! I asked Vaillant, and they say I should be fi...
By dbrb2 , 1 day ago
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Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
I'm running my Aerona 3 on WC and the 'warm end of that...
By damonc , 1 day ago
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RE: Do I just go with the lowest quote for my heat pump?
So after signing in Sept in two weeks the install may s...
By Jancold , 1 day ago
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RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
When you are renovating is always a good time, as it ma...
By JamesPa , 1 day ago
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RE: Just one room not reaching desired temperature
Looks like this issue is now resolved. Aira installed a...
By ChandyKris , 1 day ago
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There have been several people on the OpenEnergyMonitor...
By RobS , 2 days ago
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RE: Say hello and introduce yourself
Good point @jamespa But that probably strengthens @ch...
By Transparent , 2 days ago
Latest Topics
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Heat Pump Sizing & Installation Costs
By Mars 10 hours ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 10 hours ago
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SolarPV tables / online calculator
By MichelleC 17 hours ago
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By Toodles 2 days ago