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novemberRomeo
@novemberromeo
Member
Estimable Member
Joined: Sep 25, 2021
Last seen: Jan 13, 2023
Profile Activity
Topics: 5 / Replies: 28
AllTopicsReplies
Topic
Heat pump efficiency with multiple zones
4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 9
Views: 5408
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

Two weeks have passed since everything was commissioned. The ASHP has used 520 kWh of electricity so far, averaging 35 kWh per day (excluding the fir...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

I've had my LG Therma V running for a week now. We have underfloor heating throughout. DHW is set to 50 degrees and water flow temp is set to 40 deg...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

thanks @Mars - just watched it, and very interesting!

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

Our ASHP is finally installed 🙂 Because our house already had underfloor heating in every room, I was expecting the installation to be a relativel...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

Tomorrow's the big day... installation! Yesterday, our energy supplier (Neon Reef) went in to administration, so we've gone from a 13p/kWh fixed pri...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

HIES have responded to my email, I feel their response is actually much more informative than the response I had from MCS: First of all, I would s...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

Their assumptions are listed in the heat loss calcs. I gave an example above about how their assumptions for the glass is different. It's the same fo...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

I think this is exactly what's happened. All three companies have used different inputs for the wall insulation, roof insulation, glass heat loss, et...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

Indeed, I thought the whole point of using MCS certified installers to provide a service was to get some level of guarantee that they do things correc...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

I've updated the summary to show the calculated heat loss in watts and the heat loss W/m2 as per @Kev M's suggestion. Company A heat loss calculatio...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP installation journey in Monmouthshire, South Wales

@editor Yes, please do. Thanks!

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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