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Prunus
@prunus
Member
Estimable Member
Joined: Apr 6, 2021
Last seen: Aug 25, 2023
Profile Activity
Topics: 3 / Replies: 53
AllTopicsReplies
Topic
Share your electricity bills
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 32
Views: 6514
Reply
RE: Noisy Grant Aerona 3 13kW ASHP question

Hi Cally We’ve had a 13kW Grant installed about a month now, and it was really noisy to begin with. It came from the pipes, although the outdoor...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Specific questions about heat pumps

Question from me: What are the risks of oversizing an ASHP, and are there ways they can be mitigated? For example, might minimum flow rate be a prob...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP manufactures (NIBE vs Grant)

I did look at RED - Freedom Heatpumps have some videos on them. I'm a bit wary about this 'designed for the UK climate' thing: I've seen that slogan...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two interesting hydrogen graphics

I came across this video: This is the perspective of, shall we call them, 'Big Boiler'. They take the position that they can build hydrogen boil...

4 years ago
Forum
Well & Truly Off The Grid
Reply
RE: Please don't shout at me! Electric boiler vs ASHP

It's also worth mentioning that heating in flats is a bit different from houses, because in flats you often have a lot of walls and floors that are he...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP manufactures (NIBE vs Grant)

Interestingly, I think I figured out that Grant are rebrands of Chofu of Japan - the diagrams in the installation manuals are identical. I'm not fami...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Lay person looking from the outside in

Hi Mark, if you already have a plumbing background I can recommend the training videos from Freedom Heatpumps: Most of what they describe are Monobl...

4 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: ASHP manufactures (NIBE vs Grant)

I too am wondering this question - in this case Grant v Mitsubishi. The installer says Grant 'is the better product' which could be installerspeak fo...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are air source heat pumps overpriced in the UK?

@julianc Absolutely, I'm not really suggesting this as a feasible option for a lot of people. For other thing, the RHI and friends have a list of 'ap...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are air source heat pumps overpriced in the UK?

I posted this on another thread - from Alibaba: 11kW ASHP monobloc - $838 Heat pump water cylinder - $286 Radiator-style fan coil unit - $125 (i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The ASHP industry is not helping itself.

On costs, I've recently been spending some quality time on Alibaba. Typical examples (clickable links): 11kW ASHP monobloc - $838 Heat pump water...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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