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Last seen: Aug 23, 2026
When looking at 3-4kW houses its also worth bearing in mind that most manufacturers dont sell anything smaller than 5kW (sometimes they sell a heat pu...
@majordennisbloodnok @tomtheheatingengineer For my money both Heat Geek and Octopus have the advantage of volume. This provides them with real da...
There is scope for product development here. I for one don't want another ODU and another set of pipework around the house, even to just the two or t...
Nought for nought is the very best you can do, as soon as you try to get anything at all you get less because entropy continually increases. This is...
Really flow rate is a pipework limitation not a water pump limitation, you can always fit a pump with a greater head or a supplementary pump, but ther...
There is a thread on openenergymonitor which does suggest that the Vaillant Arotherm plus 7kW in particular doesn't deliver the (typically, depending ...
So sorry to hear that. If there is anything more we can help with please do summarise the remaining issues.
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Latest Posts
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 1 hour ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 1 hour ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 9 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 10 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 12 hours ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 1 day ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 4 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 4 days ago
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 5 days ago
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RE: PV and battery long payback - sense check query
@jamespa I was just commenting on the speed, not sug...
By Batpred , 5 days ago
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Readers here please note that Derril Water and many oth...
By Transparent , 5 days ago



