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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 5, 2026
Profile Activity
Topics: 27 / Replies: 5209
AllTopicsReplies
Reply
RE: Harmonics & Heat Pumps

  I cant comment on harmonics but, if I read this flow chart correctly (by the ENA so presumably definitive) a whole load of heat pump insta...

2 months ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Harvest Thermal - ASHP with a smart thermal battery

I agree entirely. My heat pump is entirely capable of programmed 'set forward' without resorting to on/off control but, as yet, I haven't tried it, l...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Harvest Thermal - ASHP with a smart thermal battery

Thats a very good point; as you say the other approach to energy storage is to use the fabric of the building, albeit at the expense of some variation...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Harvest Thermal - ASHP with a smart thermal battery

I think the answer must be yes, but the cost advantages over a battery probably vanish (and a battery will always be more flexible). Im not sure if s...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump installation quotations

@batpred, @sttpd1917 I agree with what @batpred says and would add: Based on the fact the house cools 'significantly' at night then its possible ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Harvest Thermal - ASHP with a smart thermal battery

As its using ToU tarrifs then its totally believable so long as it heats the water to a reasonably high temperature when leccy is cheap. Basically ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hypothetical House Design

Why do you want to maintain a specific deltaT? The output of the emitter (which is what you really care about, because it needs to balance the heat l...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Helium heat pumps

I dont think it is correct, given that @ashp-bobba described how the defrost cycle of an A2A het pump works just a few weeks ago.  

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

I didn't know about those, they look like good pieces of kit. They are about £30 eachplus VAT It would be pretty mean IMHO of an installer not to d...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hypothetical House Design

My first question is why bother with the auto balancing valves, what value are they adding (other than to confuse matters). Why not just normal manu...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: BUS uplift to 9k for off grid installs. I can't establish if new builds are specifically excluded.

The answer to that is at the whim of global despots (and others).  

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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