Last seen: Jun 27, 2025
The break-even COP for me, with my current gas boiler (which is hopefully getting retired this summer), and prices at 34/10.9 is 2.9. My gas boiler ...
@transparent I’ve just familiarised myself with their new offerings and I see they’ve gone for the now universally accepted balance harness approach. ...
@derek-m even with the uplift in costs that come from the existence of the £5000 BUS ‘bribe’, I don’t know why a 5kW a2w isn't around the same price a...
@editor correct…. They’re very cheap to purchase. There’s actually no valid reason why an air to water unit isn’t priced similarly.
@transparent I use the Batrium Watchmon4 system, along with qty.16 of their Blockmon-M8 cell monitoring/balance boards (I have a 16S LiFePo4 pack buil...
@cathoderay your oil boiler was probably closer to 85% efficient* so that 1200ltrs of oil delivered 10,200kWh of useful heat into property. Your ele...
How unfortunate, I’m running a booth at one of our trade shows that week in Southampton otherwise I’d definitely attend. That would be really interest...
Sorry, my brain runs at about 100mph most of the time and I'm quite good at rambling...
Five words - 'I'll see you in court'
Dragging this thread into 2023 as @zoomuno is looking to sell his ASHP and move back to gas, I would suggest that the most suitable form of heating fo...
@zoomuno By the time you've paid someone to remove it (at the same time as you have paid to have a new gas combi installed, otherwise you'll be withou...
@chickenbig The Reverso (italian supplier) fan coils that Cool Energy stock are nice units. They are available in wall, ceiling or floor mount. The ...
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RE: ASHP sizing - value of Heat Transfer Coefficient
I'm a moderator on other, unrelated, forums and the com...
By Sheriff Fatman , 18 minutes ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
I agree, @drei, that I dislike companies having control...
By Majordennisbloodnok , 36 minutes ago
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Changing from 4-port buffer to volumizer
BackgroundI bought a house at the beginning of 2025. Th...
By Andy1618 , 1 hour ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
TC Thermostatic Radiator Valve TRV Plastic Decorators S...
By Toodles , 20 hours ago
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RE: Ecodan unable to hit legionella target temp - what's the consensus?
UPDATE: Thanks everyone who commened with suggestions h...
By 9jwr9 , 1 day ago
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How long will your energy contract last?
Some heat pump tariffs don’t run as long as a heat pu...
By Toodles , 3 days ago
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@morgan They are unsupervised these days, can’t get the...
By Toodles , 3 days ago
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RE: Setback savings - fact or fiction?
Exactly. We only need to compare conditions, to decide ...
By cathodeRay , 4 days ago
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff
I found because I have very low heat loss I can set bac...
By RadWhisperer , 4 days ago
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RE: Need Help Optimising My Rushed ECO4 Install: 12kW Bosch Heat Pump
Welcome @mickamills We too have an oversized 12kW Sa...
By Old_Scientist , 4 days ago
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RE: My Powerwall 3 Consumes 3-4 kWh/Day in Self-Consumption: Is This Normal?
@caron I can confirm that the power usage of the PW3 is...
By Old_Scientist , 4 days ago
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RE: Speedcomfort radiator fans
Thats true, but having tried (and succeeded) in constru...
By JamesPa , 5 days ago
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RE: Heat Pump Heats the House… But It’s Not Cosy. Emitter Changes or System Tweak?
@alastair There I was, feeling grumpy, he said “Cheer u...
By Toodles , 5 days ago
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RE: Grant Aerona: Is there a setting to keep the 2-port valve open during pump blockade
Depends on OAT. Mine cycles at OAT>10 and of course...
By JamesPa , 5 days ago
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RE: New Fogstar 15.5kWh upright solution
@transparent My conclusion is as you have noted, tha...
By Bash , 5 days ago
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RE: Mitsubishi Ecodan R290 10kW performance
And to you too. Wishing you a very enjoyable festive s...
By Sheriff Fatman , 5 days ago
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RE: External pipework insulation
They do? But that isn't apparent from the photos we'r...
By Transparent , 5 days ago
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RE: Say hello and introduce yourself
@velcro welcome to the forums. Please feel free start a...
By Mars , 6 days ago


