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Judith
@judith
Member
Prominent Member
Joined: Nov 28, 2023
Last seen: Aug 2, 2025
Profile Activity
Topics: 2 / Replies: 369
AllTopicsReplies
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...

7 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.

7 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...

7 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...

7 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...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat loss calculators and spread sheets

@sicky I can’t separate out the garage EWI easily since it was part of a bigger job. The insulation was 70mm which is about what you need for building...

7 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Runing ASHP efficiently, general thought process. (Low and slow)

@boycey The only added wrinkle for your flat is that 5kW is a lot for a 2bed flat so your pump perhaps could be on for less time. UFH often has a “lon...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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