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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jul 29, 2025
Profile Activity
Topics: 16 / Replies: 2643
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RE: Anyone able to provide some feedback before I make my finale decision? Samsung vs Baxi vs Vaillant

Havenwise is (or at least was when I spoke with them about 6 months ago) an online only service, no hardware required (other than an internet connecti...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump installation and BUS Grant timings

I apologise that I must correct the above. Clause 5 of the regulations still requires a valid EPC. Clause 6 which previously specified that the epc ...

2 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Heat pump installation and BUS Grant timings

I have seen it argued that 'fabric first' is favoured by the fossil industries as a great way to delay material action. The carbon dioxide savings ...

2 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Samsung heat pump sizing

I wouldn't be so sure about that. Heat pump designers will optimise for max scop at rated output by playing games with the operating point on the cur...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Samsung heat pump sizing

This screenshot from the John Cantnor video on cycling shows why it's highly likely that an someone significantly oversized heat pump is less efficien...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Samsung heat pump sizing

Fair enough. With R290 heat pumps, which seems to be the direction if travel for reasons of gwp, this is possible natively at a cop of >1. We j...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump installation and BUS Grant timings

EPC no longer necessary Here is the link to the part of the regulation that previously specified such a requirement and in addition some insulation...

2 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: Samsung heat pump sizing

The regulations also include this paragraph: 4) For the purposes of [the paragraph requiring 100% coverage ] “hot water” means hot water which i...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Home energy storage & battery register

Whilst the eco arguments for PV and heat pumps and, to a lesser extent EVs, are pretty clear, the eco argument for a battery is much less so, at least...

2 months ago
Forum
Energy Storage
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RE: Heat pump installation and BUS Grant timings

Bus and eco4 are totally different schemes. There is no EPC rating requirement for bus Eco4 has, I believe, both an EPC requirement and a means t...

2 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Samsung heat pump sizing

Check the detailed specs. 7kW Vaillant is actually 8kW + at your operating conditions so unlikely to be a better size match than the 8kW Samsung. Th...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Getting the best out of a heat pump - is Homely a possible answer?

I wish I had the large slab that you have. Unfortunately my floors are either suspended wooden or uninsulated concrete. My house heat capacity i...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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