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Uk_pete_2000
@uk_pete_2000
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Estimable Member
387 kWhs
Joined: Nov 11, 2024
Last seen: Feb 16, 2025
Profile Activity
Topics: 1 / Replies: 68
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@jamespa I don't think any system, without lots of hardware will be able to balance emmitters. That will always be done by hand etc. Yes Homely c...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

As I've stated before a good add on controller, working with IAT and adjusting flow temp, will cover nearly all the problems we have encountered. Al...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

I would say your heat loss for the house is about right. I take it at 5kw, but never bothered to work it out myself, and that would fall into the righ...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@ajbevster Okay, I think I understand now, but might not have it all correct. The Glenhill has its own internal 70l buffer and 300l cylinder and the...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Cheers, I think the 72l one can be ignored, could be there as a volumizer and shouldn't effect flow/return. Is the Gledhill your DHW system ? Not...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Normally I don't like asking lots of questions, but here we may need some more information - Do you have a buffer/low loss header or volumizer in th...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@transparent Glad I could help, without realising it. Going for a tea and a read of your guide.

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Thank you, yes we have MVHR system. That's what I have been saying and hence the reason we run it the way we do. I've since learned not to criti...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@heatgeek It's very much passive house and at 538m², with 1300kwh heating (as taken from a meter just for the HP). That works out at less than 2.5...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@heatgeek Thank you, yes this is quite a meal and I'll try to understand each part. --- "efficiently use such a large HP to directly heat yo...

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Yes we have about 300m² on two manifolds, 16 loops. Another manifold is for upstairs rads

4 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 with Octopus Cosy tariff

Sorry I think you lost the point. The main question was about the CH turning off when DHW was being called for. So having two HP, that person can h...

4 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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