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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 8, 2025
Profile Activity
Topics: 17 / Replies: 2679
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Reply
RE: Say hello and introduce yourself

In addition to the above oversizing means you are likely to be running the compressor at an inefficient point on it's modulation curve for much of the...

3 months ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy

I don't disagree for a minute with some of the sentiments about gas prices vs electricity etc but, to add some balance to the argument: My heat pump...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

If your statement were 'WC doesn't work in your house' then it might be true. As it stands, apparently intended to be generally and widely applicable...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy

Very well said. When people complain about 'the council's or 'the government' I've taken to asking them 'so what would you do instead then?'. Mostl...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

I find it faintly amusing that nobody ever worries about a heat pump cycling more or less continuously when it's their fridge, but gets extremely conc...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

You are right that the lag from when the heating controller responds to when the house responds is of course the same whether the controller responds ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

This is how I would set it up Firstly a WC curve tuned to house. Start at 20 Deg outside and min flow temp of heat pump 20 or 25. End point at your...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

That's fair enough, I did say that there are exceptions (I think the only significant ones may be wind and solar gain) and there is no perfect solutio...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

Because of the lag in response. Simple as that. Look to control theory to explain why this is a problem. If your house has the thermal characterist...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

I'm answer to all of that, my house is much more stable run on pure WC than it ever was on a temperature sensor (with a boiler or a heat pump). This ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 - Home Assistant control via Modbus

On what do you base that assertion please? There are plenty of people on this forum running on pure wc achieving comfortable and stable house temper...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump Manufacturers Recommending Buffer Tanks

I'm curious who you think are the reluctant ears. Certainly not me, and if you do think i am one of the people you refer to, then you are misundersta...

3 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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