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JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Jun 7, 2025
Profile Activity
Topics: 16 / Replies: 2481
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RE: Why Your MCS-Certified Installer Might Not Be As Competent As You Think

I'm more than happy to try to help. Are you operating the heat pump 24*7 with all, or almost all, trvs fully open, room thermostat if any set...

1 week ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Why Your MCS-Certified Installer Might Not Be As Competent As You Think

Are you operating the heat pump 24*7 with all, or almost all, trvs fully open, room thermostat if any set at least 2C above target and weather compens...

1 week ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Why Your MCS-Certified Installer Might Not Be As Competent As You Think

@adisharma I'm really sorry to hear about your experience which unfortunately, whilst relatively rare, is not unknown in the renewables industry, or...

1 week ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Commencing on an ASHP Installation Process

@sheriff-fatman Thanks for the very well thought through summary, which has elements common to others who report problems. Fortunately there d...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
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 weeks ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 weeks ago
Forum
Government Schemes, Regulations, Planning & Organisations
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