Last seen: Feb 4, 2025
@jamespa thanks again. HTC saves getting into debates about assumed indoor and outdoor temps- it is just the heat loss for the house at 1degC temp dif...
@downfield No I wasn’t. Thank you. Might be the answer for some places. My quick scan of the Jaga product sheet left me confused (I get the concept)...
@jamespa it is an 1850 solid wall 150sqm in London. I have heat loss calcs coming out of my ears, with a wide range of results- in summary every calc ...
@mike-h thanks for the flow and return difference point. Will ponder!
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Latest Posts
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RE: Setback savings - fact or fiction?
Yes, by calculating it manually from the minute data, w...
By cathodeRay , 4 minutes ago
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RE: Heat pump not reaching flow temperature
Thanks, equally useless uinfortunately It appears tha...
By JamesPa , 19 minutes ago
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Fan unit Making terrible noise HELP!!
One of a pair of fan units on an Earth Save Classic II ...
By GutoFfowc , 28 minutes ago
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RE: Advice for a novice on Mitsubishi Ecodan 6kW
They show up as two distinct processes within MelPump, ...
By Sheriff Fatman , 30 minutes ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
Changes due to be announced later in 2026 with effect 2...
By Tim441 , 2 hours ago
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RE: Power outages and storms: A surprisingly good DNO experience
Outages here, @editor, are infrequent - probably once o...
By Majordennisbloodnok , 2 hours ago
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RE: New Mitsubishi Ecodan 11.2kW installation - L9 errors and maybe more
OK. I think your system, which seems well designed, is...
By JamesPa , 2 hours ago
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RE: Recommended home battery inverters + regulatory matters - help requested
To me that makes sense. Bond the inverter neutral to t...
By JamesPa , 3 hours ago
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RE: Heatpunk Floor plan issues
It's usually the complete opposite... seldom that Safar...
By Mars , 16 hours ago
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RE: Fan is clipping ice build up from the front of unit.
@majordennisbloodnok I’ll not go there thanks! Toodles.
By Toodles , 18 hours ago
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RE: Running from backup generaor in powercut?
@majordennisbloodnok Back in the 80’ or 90’ we had a te...
By Toodles , 19 hours ago
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RE: Running my new Nibe ASHP efficiently
I'm new to the forum. Did you get a reply to this last ...
By Mike @ Camelot , 20 hours ago
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RE: ASHP Energy Consumption: Aira 12kW heat pump
@grantmethestrength MCS requirements for DHW capacity h...
By Toodles , 20 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk I'm observing my own system at low temperatures ...
By dr_dongle , 1 day ago
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RE: Free Ecoheat Heat Pump Install
@deltona Yes older houses are problematic like that, bu...
By bontwoody , 2 days ago
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RE: Radiator sizing sanity check
As I mentioned early on the cost of supplying and fitti...
By JamesPa , 2 days ago
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RE: Electricity price predictions
Great point, one of the key ones in my chat with Octopu...
By Batpred , 3 days ago
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RE: New Fogstar 15.5kWh upright solution
Let me point out that there are many Chinese suppliers ...
By Transparent , 3 days ago
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RE: Weather compensation- why you should use it
@majordennisbloodnok — The Two Ronnies Mastermind sketc...
By cathodeRay , 3 days ago

