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Judith
@judith
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Noble Member
Joined: Nov 28, 2023
Last seen: Oct 17, 2025
Profile Activity
Topics: 3 / Replies: 411
AllTopicsReplies
Reply
RE: Two possible heat pump routes - how to evaluate them?

I realise now that I was replying to an earlier message! I was replying to your brain knot comment. Sorry! It's not surprising you didn’t understand ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

@lucia if your house needs 6kW then that is what you need. There’s nothing you can do with bigger radiators to make a 4kW heat pump give you enough he...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

From your information you need 6kW. Bigger radiators DON’T give you the heat output you need, all you would have is lower temperature flow and a too c...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Local Planning authority requirements for heat pumps - information sought.

Our planning permission has come through and the MCS levels were applied. We have to install in line with the permission. Our nearest neighbour is in ...

1 year ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: New Vaillant 7kW aroTherm ASHP or oil boiler dilemma/decision??

This site is one of the most comprehensive for what size heat pump you might need, as you may have read too big a pump can’t be less efficient T...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Incorrect Billing of Customers with a Smart Meter

This is a very interesting thread. Our ashp is being fitted soon, and we’re going onto OE cosy and using our battery to charge up to get over the peak...

1 year ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Delivering a smart and secure electricity system: government consultation

@transparent I did comment but I would get an E at best since I didn’t answer all of the questions in sections 1& 3 and didn’t touch 2. My input...

1 year ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Buffer tank in primary circuit?

@roel You also may already have a buffer which can also be called a low loss header. @johnmo put in some schematics above. You might be able to trace ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffer tank in primary circuit?

Derek’s approach (as usual) is an excellent one. You do not need a buffer, just a volumiser. Once you understand how your system balances up then it’s...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: What is the most important factor for you when choosing a heat pump brand?

I was thinking of your analysis but I couldn’t recall who pointed it out and hence sorry I couldn’t give you credit. Sorry! There have been other st...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on ASHP choice needed

@pie eater the difference you can’t see will be air leakage usually. There are many assumptions about how many air changes per hour your house has due...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffer tank in primary circuit?

Aaaaaah, that’s gas boiler thinking! and the recipe for problems with ashp. As several people are explaining better then I can, an over-sized pump wil...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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