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Last seen: Nov 9, 2026
So on that topic, would there be a time and cost saving from using a refrigerant-split type heat-pump compared to a monoblock for some installs? Putti...
That's a reason to replace the existing cylinder to a new one with a bigger coil, but you can buy both vented and unvented cylinders with bigger coils...
Good topic - why are virtually all installers converting the plumbing and fitting unvented cylinders, even when there's existing plumbing for a vented...
@batpred The benefit of the split refrigerant units is that the pipework sizes to the outdoor unit are a lot smaller than the primary pipe to a mon...
I agree, and that's why I think the Dutch and the Italians have got it correct with their support for hybrid heat pumps - the old boiler fails, the ex...
There's a threshold at 3.6kW / 16A, below this follows one process G98 which is typically connect and then notify with this being permitted, above thi...
Is there anyone here on the forums with an Air-2-water heat pump using it for cooling purposes during the upcoming heat-wave?
@batpred Look at what makes heat pump installations difficult - you need a new, typically quite large/larger cylinder, significant replumbing of th...
@batpred If it needs a battery to ensure a good outcome with a heat-pump, then the hurdle gets even higher as now the home-owner needs to find the ...
That looks like the direction the policy makers are heading, but I think in reality it won't happen, the extra cost of a heat-pump compared to a simpl...
Here's a few from me: 1. For homes with existing central heating, looking at heat pump solutions and wanting a solution which can provide both heati...
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Latest Posts
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
We've had an influx of new members joining the forums o...
By Mars , 21 minutes ago
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@editor thank you that's a very useful reply. We've man...
By Brazilguy67 , 50 minutes ago
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
Got excepted for the grant now so thanks for the replie...
By Chilli304 , 2 hours ago
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Daikin Altherma 3 R F+W, room thermostat control, weath...
By JanHarley , 3 hours ago
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RE: DIY powerflushing tutorial
Same 🤣 Near Lyon, France. Water has lots ...
By bobflux , 3 hours ago
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RE: Buffer tank on a 2 x 14kw Ecodan system
Pretty much as I had guessed in my crude scaling from m...
By JamesPa , 6 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Well you have a vibration generator running at some fre...
By bobflux , 19 hours ago
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RE: Why don't people choose heat pumps?
@susannasaunders The link I have found may provide a li...
By Toodles , 21 hours ago
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RE: Who's your electricity provider and what's your tariff?
@downfield Thats a decent rate, I’m shocked they hadn...
By Papahuhu , 2 days ago
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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
@batpred I mentioned earlier that targeting the payment...
By Toodles , 2 days ago
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RE: Adventures in heat loss calculations
@toodles thanks! So as suspected, around a doubling of ...
By SusannaSaunders , 2 days ago
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Six books in three years and I think I’ve now covered j...
By Mars , 2 days ago
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RE: Grant Aerona3 13kw - Buffer Tank - Heating Journey
@heymikey Well done in achieving as nearer a match acro...
By Toodles , 2 days ago
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
By bontwoody , 3 days ago



