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Joined: Jan 20, 2022
Last seen: Nov 10, 2025
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Topics: 16 / Replies: 2680
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RE: High electricity use – 17kW Grant Aerona 3

@jgtukpd - There are a number of different issues in what I've seen from your photos. I'm going to assume that what I write here will be shared with...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High electricity use – 17kW Grant Aerona 3

Annotations added to your photos: (external view on left) external pipe run should be completely sealed against rain. Should be in pipe ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High electricity use – 17kW Grant Aerona 3

Pipe insulation is inexpensive.It's a very important part of your heat pump installation, and needs doing well. Here's Class-O Nitrile-rubber pipe i...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High electricity use – 17kW Grant Aerona 3

Heat energy being thrown away. Pipe insulation needs re-doing so that it seals around all open metalwork. See this article.

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Green Homes Scheme - PV Upgrade

That has to be a scam. On their website, click on Green Homes Grant at the top.The page shows this: Click where I've placed the red arrow,which ...

9 months ago
Forum
Solar Photovoltaic (PV)
Reply
RE: High electricity use – 17kW Grant Aerona 3

Thanks for confirming that you have a 3-phase supply to the property. In that case it seems odd to me that the installer has specified the 17kW Gran...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High electricity use – 17kW Grant Aerona 3

Have you been reading the low-level advice which @cathoderay has been giving on the Topic about the Baxi ASHP? That level of instruction on how to ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Because there isn't one on the MCS Approved list. This list can be bizarre and overly pedantic at times.For example, installations of rooftop PV pan...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Baxi Air Source Heat Pump tips and tricks please

Cathy, once you've followed the instructions from @cathoderay to get the WC curve set correctly,there comes a point where further investigation of Sys...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Isn't the size of emitters issue diminished if UFH is favoured rather than radiators. And wouldn't UFH be cheaper than adding a second heat-pump? ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Pipes and cables exposed on roof

Hi Michelle, It's a pity you didn't mention that earlier. There was a visit by a renowned exponent of good building practice holding a walkabout s...

9 months ago
Forum
Solar Thermal & Power Diverters
Reply
RE: Tomato Energy

The detail on that issue matters. 1: The consumption readings in a Smart Meter are cumulative.Any 'missing' period is still reflected in the followi...

9 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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