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Last seen: Dec 21, 2025
This now in answer to my request to provide input assumptions for the heat loss calculations "In the scope document that Sandra shared with you, the...
@jamespa how do you get from usage of 30MWh to loss between 10 and 15?
@jamespa Ok I have now found all my old oil orders and over a 7 year period, the average amount ordered was 2900 litres. The installer assumed an aver...
So now I have completed my heat loss calculations and I get a total property heat loss of 12502 against the installer's calculations of 8610. I have u...
@jamespa I woke up this morning (at 4.45am!) thinking about exactly that and I have been looking into the ACH numbers on the Freedom Pumps xls. To me ...
@cathoderay. I've taken the numbers directly from the Freedom heat loss calculator that I downloaded from your link. This shows a room heat loss (larg...
So, I have input details into the Freedom Heat Pumps loss calculator and I get the following Lounge - Installer Heat Loss 40 Room Loss 1995 Mine He...
@cathoderay nice one. That's what I was doing when I saw your message. Will revert
@benson thank you. I am beginning to see that now and will be changing my approach thanks to what I have recently learned. @cathoderay and others. T...
@cathoderay floor plans were in the scope document that I posted 👍
@jamespa thanks so much. Very useful
To summarise where things stand. The external insulation is totally inadequate and should be completely replaced and I will contact the installers t...
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RE: Heat pump installation quotations
@batpred Excellent, thank you very much!
By sttpd1917 , 24 minutes ago
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Hopefully this will answer your question. To...
By ASHP-BOBBA , 25 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 34 minutes ago
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Harvest Thermal - ASHP with a smart thermal battery
I thought people here might find this interesting, even...
By springswood , 2 hours ago
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Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 2 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 2 hours ago
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@mkz, that's very helpful. Even if Urban Plumber are no...
By Majordennisbloodnok , 6 hours ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 6 hours ago
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My first question is why bother with the auto balancin...
By JamesPa , 7 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 7 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 7 hours ago
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 11 hours ago
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 1 day ago
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RE: Daikin ESPAltherma and Home Assistant installation
@bash, something we haven't touched on already relates ...
By Majordennisbloodnok , 1 day ago



