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Judith
@judith
Member
Prominent Member
Joined: Nov 28, 2023
Last seen: Aug 10, 2025
Profile Activity
Topics: 2 / Replies: 371
AllTopicsReplies
Reply
RE: Totally bewildered with my ECO4 heat pump installation

Our house has a solid concrete floor cavity walls with old foam insulation and 300mm of insulation in the roof. It’s 190m2in area and 1950s build. The...

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

I’m not as expert as James but we have Vaillant and are happy with the heat level and wince a bit at the cost when it’s this cold So you ought to be...

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

While you are pulling the data together that James needs to help you should also download the MyValliant app. It tells you a lot about your system you...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Yet another government reverse ferret - flakey grids and property lobbies

Yes compulsory 3 phase in New Homes Standard is best!

7 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Yet another government reverse ferret - flakey grids and property lobbies

I read this thread since I wanted to know what a reverse ferret was! Please assist. I totally agree with @transparent recommendation of (I assume) f...

7 months ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

an update now the weather is much colder and we lost the concept of solar gain months back. We gradually had to increase the curve to 0.65 to compensa...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Moving to single zone

@johnnyb that’s very interesting to read!

7 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Best control strategies for heat pumps that are way oversized

On this forum with advanced monitoring available a Mitsubishi user whose pump was oversized recommended the cloud based auto-adaptation function to im...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Best control strategies for heat pumps that are way oversized

I agreed with your approach on the other thread and so pulling out the general case is a better way of capturing it.

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Best control strategies for heat pumps that are way oversized

I feel the best first question after establishing that a heat pump is over-sized (even massively so say 3x) is does that affect efficiency? John Can...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki M efficient operation

it’s much more efficient to run a heat pump continuously but for everyone in the end it’s about money. So if you were able to run only on the cosy che...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hitachi Yutaki M efficient operation

@iraknic have you established that you can hear your system? Ours is very much quieter than the old gas fired boiler, no radiator creaking for example...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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