Last seen: Apr 30, 2025
@jamespa Thanks again for the great comparison. Yes, I certainly was not considering the 9kW one! And I did notice they had the units wrong on there (...
... the property was built in aprox 2020, about 170 sq M, ground floor plus two above, the top floor being essentially a pre-converted loft room, but ...
Wow, thanks for that @jamespa! I actually did 15.0 degrees for the degree day output, so can adjust slightly. I have a feeling that a calculated he...
Thanks @jamespa for showing the variability. Unfortunately for me taking a gas meter reading involves a trip outside the house! I did gather data over...
@editor Good work Mars!
Mythic Beasts are great!
Thanks @jamespa and @toodles. This company has done work for me before so I am pretty comfortable with them.
Ok... I did another one, still not using the DegreeDays concept, but using another snapshot. From 11:55pm on March 3rd to 8:55am on March 4th I used 2...
but an AI gives me a slightly different value (maybe due to Calor rounding that L x 7.1 figure): To calculate the kWh from 2.39 cubic meters...
Hi @bobtskutter ! Thanks for your reply -- I'll have to take some time to digest it, some new concepts in there for me. The kWh figure I arrived at th...
according to degreedays.net, that 16th date (at Gatwick observation station) was about 14.3 heating degree days for the 15.5 base temperature. The 21s...
Latest Posts
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RE: Mitsubishi cycling while on chilled water output
I think that explains it. Unless you can somehow incre...
By JamesPa , 5 hours ago
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RE: Adding battery storage to SolarEdge PV system
@chandykris No need to apologise at all! I forgot to ad...
By Toodles , 8 hours ago
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RE: Say hello and introduce yourself
Yes please do Suggesting a loss in the region...
By JamesPa , 9 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
Can we have some links to those you're considering plea...
By Transparent , 9 hours ago
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RE: Weather compensated secondary circuits with Biomass
If anyone’s going to know the answer to this it’s @sune...
By Mars , 17 hours ago
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RE: Commencing on an ASHP Installation Process
That outside pipework would concern me. Surely rigid se...
By benson , 1 day ago
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As I have reported elsewhere we turned on the cooling o...
By downfield , 1 day ago
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@el3b Hi, sorry to hear that, it is advisable to instal...
By ASHP-BOBBA , 2 days ago
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RE: Difficult positioning of air source heat pump
@rikiarn Out of intrigue, the thread reads as though Ai...
By Sheriff Fatman , 2 days ago
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RE: Mitsubishi Ecodan Fails to Heat Water despite temperature drop
@m1kegibson If you are able to access the service me...
By HarriUp , 3 days ago
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RE: When will heat pumps and install prices come down?
... which of course is impossible because the world mov...
By JamesPa , 3 days ago
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My advice is reject unless they will delete the buffer ...
By JamesPa , 3 days ago
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RE: Battery storage to run Heat Pump.
I would be surprised if the battery chemistry is going ...
By Transparent , 3 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@dowallydrifter OK. I would recommend you read t...
By JamesPa , 4 days ago
