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Last seen: Aug 22, 2026
@roel I also have a 12kW Samsung with the same 50L volumiser, although my volumiser is fitted to the primary return rather than on the primary flow. ...
@toodles Great that Cosy is working out for you. I've not tried the Octopus Compare app, but without the benefit of batteries I find it non-trivial ...
British Gas are also offering at 14p/kWh tariff for the first year for heat pump usage: Presumably they have a separate billing meter for the ASH...
We have just had our property updated on the ECO4 scheme, so I will share our experience here for others. Firstly, there are literally dozens of com...
@toodles In your situation, with batteries, I agree that you have made the right decision - being able to lock in half price electricity at 11p in the...
@mike-h I have been running my Samsung gen 6 (12kW) in Quiet Mode for scheduled DHW cycles for exactly that reason - it limits the power of the ASHP t...
Isn't it more efficient/cheaper to heat your DHW with the ASHP with a COP of 3 (300% efficiency) than use the immersion with a COP of 1? Excess sola...
@johnmo It's a utility hallway - that photo was taken during the installation, pipework is now lagged, and I will be building a closet to house the ta...
@mike-h Yes, I was aware it's not ideal, as discussed in this article: The installers insist on a volumiser (a) to ensure the minimum volume is a...
Yes, it really is a volumiser (2 pipe tank), and it is located on the primary 28mm return to the ASHP as shown here: so is on the return for both ...
Agreed, even a 5kW battery would allow one to charge at 11p and avoid importing at 34p during the peak period, plus it gives added comfort and conveni...
I am so relieved to find this thread and discover that I am not the only person obsessed with this - Like Steve, I have no issue with looking at the d...
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Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@bobflux Thanks very much for that information and advi...
By Toodles , 33 minutes ago
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Britain’s Heat Pump Shitshow is now available to pre-or...
By Mars , 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 , 3 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 , 3 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 , 3 days ago
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RE: Mitsubishi Ecodan FTC6 settings
The Mitsi remote thermostat should not be plugged into ...
By F1p , 4 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 , 4 days ago
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Readers here please note that Derril Water and many oth...
By Transparent , 4 days ago
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RE: Advice on Vaillant Sensocomfort
Oops, I meant Sensocomfort (the UI to the controls)
By Batpred , 4 days ago
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RE: Heat Pump Training vs. Real-World Installation
Our instal was very much the opposite. White haired blo...
By Batpred , 4 days ago
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RE: Flushing system, cleaning and inhibitor
While skim reading a manual for our Vaillant HW tank, I...
By Batpred , 4 days ago
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RE: 'Chinese Diesel Heater' to heat the home .....
Old thread but I'm new to the forum so new to me. How...
By BlizzardGreen , 5 days ago



