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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 10, 2025
Profile Activity
Topics: 17 / Replies: 2821
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RE: Which system is most efficient...

First question, where does 16kW come from. It's a big loss even for a 220sq m house unless its poorly insulated or it gets very cold, which it may de...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fitting emitters with output greater than room heat loss.

If the objective is to operate without trvs then rads need to be balanced so that the rooms are at the same temperature (or deviate from the same temp...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Fitting HP pipes in advance?

OK so it sounds like you have a vented DHW system all the heating pipes converging in the airing cupboard You are almost certainly going to w...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fitting emitters with output greater than room heat loss.

If they are all above the required heat loss by about the same amount, you simply turn down the flow temp! If some are 'oversized and some not, it mi...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Fitting HP pipes in advance?

Definitely try to fit the pipework now, pushing it through conduit isn't likely to be very practical unless its large conduit without bends. Can I as...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Anyone have experience with Clivet? And monoblocks vs Splits?

Clivet is, I believe, Midea rebadged. There are several on here with Midea heat pumps who may be able to comment. They are not the most advanced in ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

Based on this discussion it's pretty convincing that this can't work for the nation if run as a business, which of course doesn't mean that it's techn...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

Thanks. The profit motive defeats us again. Is this beginning to feel like an argument for a nationalised system managed in the interests of the ...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

That would be my question too. Of course the database could (presumably) be used in conjunction with a ToU tariff/opt in. Without further detail its...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

No but the house is a storage mechanism which a heat pump can access. All other things being equal using existing storage mechanisms is better than c...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

I completely agree we are paying for underinvestment in infrastructure (arguably due to the effects of privatisation) although electrification drives ...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The UK’s Heating Nightmare: Why Many Systems Fail Homeowners

I guess, but it is only a guess, that the excess demand problem is as much, if not more, in the grid equivalent of the 'last mile' as it is in generat...

9 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Page 128 / 237
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