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bontwoody
bontwoody
@bontwoody
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Joined: Mar 5, 2022
Last seen: May 6, 2025
Profile Activity
Topics: 28 / Replies: 777
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RE: Heat pump quotes: Advice needed

@chansug Good advice above. 300mm is considered acceptable loft insulation these days 🙂 The fact that some of the quotes havent specified the flow...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump quotes: Advice needed

@chansug Welcome to the forum. Could you specify what flow temperature and design OAT the three quotations are given for? 🙂 Also a description o...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New 5kW Samsung Gen6 heat pump owner with loads of questions

@johnnyb Well that all sounds like progress. I’m guessing that the COP figures are calculated from the internal sensors on the unit so should be vie...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

“Think of it as a short section of single carriageway road on what is otherwise a dual carriageway. It's an impediment but much better than a lot of s...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

@rhh2348 I just mean that from the 22mm copper or plastic pipe spine, each radiator have 15mm plastic down to it. I use John Guest plastic pipe but...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

@rhh2348 I find this an interesting question as I did a similar thing after reading John Cantors site. I have 28mm to my 5kW heat pump which then r...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat the flow temperatures in and out of the buffer tank aren’t really something you can do anything about. They just indicate how much efficiency...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat There is no such thing as a dumb question, just a dumb answer 🙂

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat I think modern TRVs can be fitted on either side. The lock shield will restrict flow whichever side it is sited

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat Remember Pat, as the outside temperature varies, so does your flow temperature. If you are not getting to room temperature today when its war...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat yes if you can get the maximum flow temp to 46C from 50C that will be a result. you will find that each adjustment will affect every other...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is it crucial to get flow temperatures with heat pumps right?

@alfapat that is what water law is for Pat. It automatically adjusts the flow temperature to take into account the OAT. Once you have the rad valves r...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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