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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 22, 2025
Profile Activity
Topics: 17 / Replies: 2890
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RE: What do we need to know before installing a heat pump?

Its not so much frequency that causes the loss in efficiency, its the fact that, to deliver the same energy from the emitters, the heat pump must oper...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

Agreed. Without doing all the sums my guess is that the critical temperatures are 4-8 (perhaps 12)C where the energy demand is high and is a temperat...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

@filipe Im not sure that there was much 'good' cycling, just some where the difference was negligible. The key messages for me were 1. Cycling mea...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

Definitely. In the UK 1.4M gas boilers are retrofitted each year, the task is to make that 1.4M heat pumps. That's a major task which will not be a...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

The responsible manufacturers include defrost time in their system specs and give you the net output. However as you say 11kW sounds about right allo...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

The sad thing is that its still happening with heat pumps. I have had in total 10 quotes and 2 full (3 hour) surveys. The two full surveys both esti...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

Range and charge speed are both increasing and taking a break after 3 or 4 hours driving is good for safety. The number of charge points is also incr...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

Indeed. The transition to EVs is going, in a decade or so, to be an interesting case study. Having test driven several, they are simply better cars,...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

That is an argument which has been made before, and will be made again by those who seek to frustrate efforts to mitigate the impact of climate change...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

I wouldn't expect price equality, but currently 'green' taxes all fall on electricity whereas electricity, if used to drive a heat pump, is by far the...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

Human nature I'm afraid. To be honest I'm not sure its at all easy to design a subsidy scheme that wont somehow be abused. It probably doesn't help ...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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RE: What do we need to know before installing a heat pump?

@derek-m It wasn't actually my suggestion, others put this forward. I must say I'm inclined to agree with you, they are cheap enough that they don't ...

2 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
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