Last seen: Feb 12, 2025
@chansug for me the survey was done by the engineer that did the installation, but I think that is not a given and the install might be done by a diff...
From my experience I’ve learned the following: the heat loss calculation is definitly an estimate. For starters the u values of the materials and t...
you can play around with the answers to get to the right value. Like you I already knew the heat loss so I changed the build year until I got the righ...
You might want to give Boxt.co.uk a try. At least for me they had octopus level price, but were able to proceed quite quickly. They also give an upfro...
Maybe the analogy is imagining that cars could just drive faster through those single carriage section. All that acceleration and extra friction would...
My answers to your initial questions: 1. They are all close enough and match your usage figure to be right. I’d say the not so local firm is wrong t...
it’s because there are 10kwh hiding in every Liter of oil.
Hi, I think partly the problem is the immediate feedback that the electricity meter provides, versus the oil boiler where (I presume) you just get the...
No answers here, just some observations. Your flow temperature is reasonably high, which maybe indicates slightly smallish radiators and would give ...
I’ve got: 5kW heat pump, but only 2.5kW heat loss, so max consumption of 2.5/3=0.75kW from the heat pump. 9.5kWh battery. Solar doesn’t produce a...
I don’t think there is a problem. Given a water saving shower head and a 5 minute shower, that’s: 4l/min x 5min x 5 = 100l. So even the smallest 150...
just some comments by a door blower tester that they have never seen a higher value than 1 and the fact that in my calculations I could only get close...
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Latest Posts
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Volumisers in Heat Pump Systems: Does Placement Matter?
The debate over buffer tanks in heat pump systems has b...
By Mars , 11 minutes ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
@johnr An extra rad was installed in the lounge when th...
By BAMi , 13 minutes ago
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RE: SolarPV tables / online calculator
By Gary , 45 minutes ago
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RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Yes, that sounds correct. I would say try both options...
By Old_Scientist , 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 , 11 hours ago
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RE: Setback savings - fact or fiction?
The great thing about science is that it doesn't care o...
By JamesPa , 12 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 , 14 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 , 15 hours 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 , 18 hours 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 , 19 hours 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 , 20 hours 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 , 23 hours 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 , 24 hours 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
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RE: Towel rails. An unexpected final hurdle
@jamespa Beware; the use of the term ‘WC’ might lead to...
By Toodles , 2 days ago
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RE: Visit a Heat Pump sessions.
Congratulations @toodles, that's a fantastic result. We...
By Old_Scientist , 2 days ago
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RE: Baxi Air Source Heat Pump tips and tricks please
@cathyem1 - thanks for the update. Let us know how it g...
By cathodeRay , 2 days ago
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH
@editor But do you wear your peaked cap the right way r...
By Toodles , 2 days ago
Latest Topics
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Volumisers in Heat Pump Systems: Does Placement Matter?
By Mars 11 minutes ago
-
SolarPV tables / online calculator
By MichelleC 7 hours ago
-
Samsung Gen 7 R290 12kW is not behaving how I expected
By Joshua 19 hours ago
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Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
By BAMi 22 hours ago
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By Toodles 2 days ago
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Solid manhole cover within r290 exclusion zone
By dbrb2 2 days ago
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Towel rails. An unexpected final hurdle
By Davesoa 2 days ago