Last seen: Feb 23, 2025
Additional info on pull down end of line reistors: To eliminate the presence of reflections from the end of the cable, it must be terminated at both...
@cathodeRay, Would I be right in thinking that your hourly COP value calculation includes periods (minutes) when the compressor is not running? Or mo...
@ cathodeRay I could see how the instantaneous COP value could be in the order of 11.6, but I can't see how that could be the average over an hour due...
@batalto was your boiler located in the middle of your garden, or in your kitchen, utility room or loft. Your missing my point, whatever the boiler ef...
You suggested a figure of 80% for the efficiency of you oil boiler for converting the fuel to hot water, where does the other 20% of the energy goes, ...
One question if I may, where was your old oil boiler located; within you home or in an outbuilding?
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 , 12 minutes ago
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@eliuccio Unfortunately, whilst I agree with a lot of...
By JamesPa , 39 minutes 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 , 1 hour 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 , 1 hour 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 , 2 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 , 2 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 , 3 hours ago
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RE: Heat Pump Sizing & Installation Costs
Perhaps useful to have installed date too? To get conte...
By Tim441 , 6 hours ago
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RE: SolarPV tables / online calculator
I'd be interested what others find whilst using that we...
By Majordennisbloodnok , 8 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 , 20 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 , 22 hours 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 8 hours ago
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 9 hours ago
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SolarPV tables / online calculator
By MichelleC 16 hours ago
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By Toodles 2 days ago
