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Judith
@judith
Member
Noble Member
Joined: Nov 28, 2023
Last seen: Oct 12, 2025
Profile Activity
Topics: 3 / Replies: 409
AllTopicsReplies
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...

10 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...

10 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...

10 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...

10 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...

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

@sicky our garage was made into a warm room using external insulation and its usual to use a system, primer, glue, fixings, board, render. Ours happen...

10 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

Perhaps you should sort out /have someone else sort out your system and then you’ll will know what matters. I know several posters here have told you ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: non-Mitsubishi owners - how much control do you have over your ASHP "freeze stat" function?

I spotted our value ages ago buried deep in a document/menu but now can’t re-find it! It will be the same 4C as JamesPa’s value, assuming it’s the d...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: non-Mitsubishi owners - how much control do you have over your ASHP "freeze stat" function?

Can you explain the freeze stat function please? What is it supposed to to do? It us certainly to be described/labelled differently on other makes but...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Boxt Heat Pump Installation Experience

Definitely interested in hearing more. Did you get the government grant?

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Share Your Experiences with Heat Pump Manufacturer Support

@editor it would have been easy if the first guy who visited very promptly had been more software savvy but he did say he didn’t know much(!)

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Has anyone replaced an old ASHP with a new one?

I’m not surprised an installer suggested replacing everything since he gets more work! Your system is 16 years old so what else might need changing?...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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