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David999
@david999
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Joined: Mar 24, 2024
Last seen: Feb 18, 2025
Profile Activity
Topics: 8 / Replies: 294
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RE: G4 valve blowing off

Heating engineers out today and my fault is the expansion vessel for the dhw cylinder. It started making this noise like a foghorn on Saturday and ha...

8 months ago
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Air Source Heat Pumps (ASHPs)
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RE: G4 valve blowing off

@toodles the installer coming out tomorrow toodles. I was curious if the tundish routinely blew off or if it’s a fault but looks like a fault or they ...

8 months ago
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Air Source Heat Pumps (ASHPs)
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RE: G4 valve blowing off

@toodles a bit confused toodles, no idea what’s blowing off the expansion vessel of the tundish but it was loud. I checked my pressure on the gauge a...

8 months ago
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Air Source Heat Pumps (ASHPs)
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RE: G4 valve blowing off

Just noticed I have lost my pressure and had to recharge. I have a thought it’s the mains water pressure that’s too high.

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
G4 valve blowing off
8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 7
Views: 629
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RE: Will heat pump heat hot water without increasing the temp in my home?

@ellyse the icons you can get online and what they do. You will need to do that so you know how to lower dhe temp. The pump speed is determined by fl...

8 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

@transparent you can get all the paperwork they hold on you by submitting a data request, GDPR I think it’s called now. Total rubbish refusing to give...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

@transparent is that relief valve on the cylinder a built in g4, mine was high up on the pipework with an air gap. It all looks a bit how mine was, th...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

@toodles my daughters is similar and I installed it. I reduced the temp but without gauges I have no idea what flow and return temps are. I need to t...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

@jamespa once it all goes wrong and you research you then realise how bad. When you confront the installer they don’t understand. Change isn’t coming ...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

@jamespa mine was costing me 25 quid a day and I had my log burner running. It might be a free grant she has but it will bankrupt her unless it gets k...

9 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Will heat pump heat hot water without increasing the temp in my home?

I did a quick check and I’m told if it’s y plan then you don’t have independent control over domestic hot water and heating, but one of the other boff...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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