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Last seen: Apr 26, 2026
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...
Yes, we have a 50L volumiser installed, and our radiators can emit the minimum heat output at flow temps of 33-34C, so this is as low as we can go.
Interesting @mike-h. When I first looked at Cosy, it didn't appeal and we went with Agile. I'm not sure if they have changed the time slots and the di...
Latest Posts
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Just bumping this up for @editor . Are there any engin...
By Painter26 , 4 minutes ago
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Well, turns out a DIY job isn't going to happen. Even ...
By AndrewJ , 1 hour ago
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RE: Renewables & Heat Pumps in the News
Indeed, the only people that might answer that are depa...
By JamesPa , 2 hours ago
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RE: Anyone concerned about GivEnergy?
Here is the latest communication from GivEnergy regardi...
By txmartyn , 3 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Can @editor please clarify: Does the Indevolt App com...
By Transparent , 4 hours ago
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@editor I too had a long list of questions, some of ...
By Bash , 5 hours ago
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RE: Tell us about your Solar (PV) setup
3.84kWp of solar on our main South-East facing roof, in...
By Gmuzz , 5 hours ago
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RE: Mitsubishi Ecodan FTC6, Evohome & Economy 7. Getting Two Zones to Work Together
Lets step back. Why do you need/want 2 zones? The hea...
By JamesPa , 7 hours ago
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RE: Vaillant arotherm plus heat pump frost protection
Yes, typically as close to the heat pump as possible. ...
By JamesPa , 7 hours ago
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RE: Brown Oily Residue Blocking Air Vent and Weeping Relief Valve... Anyone Seen This?
Difficult to comment further without being there. If...
By JamesPa , 21 hours ago
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RE: Our 10 year old Grant heat pump failed
Back in the 70’s and through the eighties, one of my re...
By Toodles , 23 hours ago
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RE: Share Your Experiences with Heat Pump Manufacturer Support
@seoras Sorry to hear that. I found Vaillant very help...
By JamesPa , 2 days ago
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The Watchdog That Watched and Waited
On 9 January 2026, Consumer Energy Solutions collapsed ...
By Mars , 2 days ago
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RE: GSHP Kaput After 16 Years: New Compressor or Switch to ASHP? Advice Welcome
Cool Energy in Grimsby sell ground source heat pumps an...
By DerekDeLeon , 2 days ago
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RE: Valliant Heat Pump Settings
Thats arguably a sign of a good installer - they unders...
By JamesPa , 2 days ago
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RE: Electricity price predictions
Well, we have so many cases where rain water mixes with...
By Batpred , 2 days ago
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RE: Two heating zones to one zone
@profzarkov They arent obviously wrong, but the only...
By JamesPa , 2 days ago
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RE: Towns water feed to air source heat pump system
The DHW circuit cant be separated (well it could, you c...
By JamesPa , 2 days ago
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Solis AC-coupled 3kW storage inverter
Solis AC-coupled 3kW storage inverterPylontech batterie...
By MartinRobinson , 2 days ago
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RE: My NIBE ASHP Nightmare: No Commissioning, High Bills and a Hostile Installer
As @transparent has observed above, this is not bad, an...
By cathodeRay , 2 days ago
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As I was reading this article Mars, I was thinking that...
By Toodles , 3 days ago
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RE: Say hello and introduce yourself
That doesn't sound 'right' to me. The national Smart ...
By Transparent , 4 days ago
