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Judith
@judith
Member
Prominent Member
Joined: Nov 28, 2023
Last seen: Aug 6, 2025
Profile Activity
Topics: 2 / Replies: 371
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Reply
RE: Vaillant - Downstairs radiators not getting warm

@samiebon1 our DHW gets to 48C with a heating temp of ~55C within ~ 45mins but it’s not usually empty (residual ~35 in bottom third of tank). The la...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is My Midea Heat Pump Inherently Defective?

@cathoderay &@bobtskutter This is getting interesting! I was convinced from much earlier posts that the early hypothesis of the PHE being inad...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump starting current

@transparent to give context to my results of slow switch on current. Our Vaillant is inverter controlled, the system is open and the overall system i...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Totally bewildered with my ECO4 heat pump installation

You have every right to have your home left in a reasonable state. Everyone’s definition of reasonable will vary but don’t let the b*st*rds you down....

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside

nevertheless it had just finished a de-icing cycle and was in the following 3.2kW power draw peak, which is the same amplitude that it generated a few...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside

I’ve ‘invested’ a whole £3.99 for an audio spectrum analyser app. I’ve not captured all the apps features but this was our 7kW Vaillant running at 3.2...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Totally bewildered with my ECO4 heat pump installation

@dwynwen sadly you need to give them (yet another) chance to fix the installation or you will be prevented from from any further redress. Do you hav...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 R32 HPIDI17 performance in low temperatures

@davidmo6 When we had the gas boiler we used to set the house to 15C and it took a day to warm up on the last day of our holiday. Now with the heat pu...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm ASHP gets noisier when it gets colder outside

At last caught the ashp on its peak after de-icing. Drawing 3.2kW electrical power (about max seen) for a few minutes, the noise level was normal, no...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump starting current

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump starting current

The sampling rate of 5mins is not quite fast enough to see all the features. The ‘off’ period is ~7mins out of ~40. A real monitoring system would be ...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat Pump starting current

I’m using different systems to look at similar information but I’m afraid lwt is not one of them. On 3rd Jan we had mostly -ve temp rising to ~0...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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