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mjr
@mjr
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Reputable Member
Joined: Feb 23, 2022
Last seen: May 7, 2026
Profile Activity
Topics: 2 / Replies: 301
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Reply
RE: 17kw Grant Aerona heat pump not performing

Over the last 24 hours, mine have ranged between 28 and 38 degrees while heating. If you set the flow to 50, I expect at least one radiator should be ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

I don't share your suspicion because I saw plenty of complaints in other energy-saving forums and local social network groups last week about ineffici...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

@jswhite actually, yours sounds like one of the few uses where a twin-pump solution might have made sense. A single pump causes you problems in that s...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

They're nearly all registered, with their serial number, half the control gear is inside the building and, if you have the melcloud module in the cont...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant 10kw ASHP installation. Installer issues

I think it depends where your pump is. Our condensation drainpipe froze over in the cold and the pump slowly dribbled water across the paving from und...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

There's nothing about being a leaky old house that makes ASHP necessarily impossible: it just costs more both to buy (bigger unit needed) and operate ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: AI Heating Controls & IoT

Ah, but it also "reads" the return water temperature is lower (say, RWT = LWT - 8), because the house has taken more heat out of it because the house ...

4 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: ASHP at cold temperatures

I hope you put that in writing and wish you luck with getting a resolution.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan not good enough ?

Yeah, that's still going to mean that the room temperature sensor on it won't reflect the house temperature, so using "auto adaptation" and "room" mod...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan not good enough ?

You don't need them, but the problem is that you MAY need them. No, it shouldn't be like that.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan not good enough ?

Cool. Who says it must? The rubbish way the pipe passes through the wall is one of my outstanding complaints with my installer too! I bodged some inst...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

"Auto adaptation" is used when both the FTC6/5/maybe-others main controller is set to a room temperature and DIP switch SW1-8 in the big control box i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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