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Last seen: May 17, 2026
@andrewj when I referred to the HP running constantly, I didn’t mean the pump was running 24h a day, I meant the system was on 24/7, with no setbacks ...
I’ve just got the link for this thread from @editor, here’s my experience with the cosy6. firstly it’s not 6kW, only 5.6kW. That nearly sank my inst...
@toodles found this thread and was reading it when noticed it’s a year old. Did Octopus cosy only have 6h of cheap power last year? This year 2025, ...
I’m with octopus, best tariff for heat pump and battery. if I had double battery size might go for an overnight EV tariff maybe one day we can use...
The double panel radiators I’ve seen have a bleed screw on both panels. Usually the nut around the bleed screw can undo allowing it to be replaced. ...
@adamk these are called roll top rads, they were still available at screwfix till few years ago in their budget range. The bleed keys are not strong...
@adamk downstairs rads are less prone to airlocks, you can replace the broken bleed screw, you can get a set of two from a plumbers to replace both th...
@adamk I run the downstairs UFH as an open loop, the kitchen/lounge pipework is 250m of 16mm, add to that the 4th bedroom 100m, which is restricted to...
Octopus also would only cap off the old pipework and joined the ASHP into the existing Flow Return and DHW feed. I watched their plumber and pointed...
Im looking at Anderson or Simpson and Partners, something with style, function and reliability
I kept all the scrap, got £20 for the gas boiler, have a ton of old copper from 2 previous boiler installs, most 22mm to so nice and heavy. They did...
@adamk when i had my ASHP fitted by Octopus, removing old boiler and flue into roof was included in the quote, maybe it was me being fastidious about ...
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RE: Solar Produced vs Home Consumed
It's worth adding that if you have a hot water tank and...
By JamesPa , 21 seconds ago
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
@editor Sorry Mars, I didn’t see a notification about ...
By Toodles , 19 minutes ago
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RE: Hitachi Heat Pump being replaced with Vaillant
Yes to be configured as a volumiser. The pump is to be...
By trebor12345 , 37 minutes ago
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RE: Anyone concerned about GivEnergy?
So it seems subscription day has finally arrived for Gi...
By TechnoGeek , 2 hours ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 5 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 5 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 18 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 1 day ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago


