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Last seen: Aug 23, 2026
@adamk what you need is enough battery size to cover 3 hours of peak prices mid winter that you get on some tariffs so probably >10kWh, with enough...
Accuracy of -/+1C is normal
@jarlatheoin do put the MVHR in early it’s not an easy retrofit. Even if you save on the unit itself the ductwork is what is difficult to retrofit. Pu...
We have exactly what you describe, one utility room with UFH but radiators elsewhere. Design one single open loop, increase radiator size if need on...
Since you already have the ashp it makes little financial sense to add solar thermal to it. We already had solar thermal (vacuum tube type), so had an...
I think you’ll find it depends on the room heat loss. A low loss room can be heated by a much smaller difference between mean water temperature and re...
Just done your survey!
If you need the larger one then you don’t get a choice! BUT there plenty of well informed people who prefer the 10kW version. It’s quieter because i...
@grahamf you appear to value your recirculating loop despite it reducing your overall water temperature. If you switch it off how long does it take fo...
@cleardene-ashp just thinking about your issues here. You use ‘the supplier’ as if he did the original work. If that’s the case don’t rush to use him ...
This is a very valuable post which I wish had existed before we ordered our ashp. We found our installer via the Heatgeek web site, as the nearest Eli...
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Degrees of Separation
Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 13 minutes ago
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@kilgorexv, I actually think doing your own calculation...
By Mars , 20 minutes ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 14 hours ago
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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 day 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 day ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 1 day ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days 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 , 2 days 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 , 2 days 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 , 5 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 , 5 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 , 6 days ago
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