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IaAck

@iaack

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Trusted Member

789 kWhs

Joined: Mar 8, 2023
Last seen: Apr 10, 2025

Topics: 0 / Replies: 30

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RE: Is My Midea Heat Pump Inherently Defective?

@bobtskutter In order to calculate the energy required to defrost the evaporator you are going to need some additional info including evaporator mass,...

3 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Is My Midea Heat Pump Inherently Defective?

@cathoderay To answer your question regarding this The inverter pcb contains a VFD (variable frequency drive) circuit that drives the 3 phase compre...

3 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Double heat pump for DHW?

Waste heat recovery could be an option? Are we talking about a single shower cubicle ike this:- "5 showers in a row" and this springs to mind!

3 months ago

Forum

Domestic Hot Water & Cylinders

RE: ÀSHP heat loss - how close to perfect can we get?

Are you saying then + or - 10% or + or - 5% I note that the tolerance for ashp ratings (EN14511) are: Tested cooling and heating capacity ≥ 0,88...

6 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ÀSHP heat loss - how close to perfect can we get?

How close to the true heat loss figure do we need? Is it actual heat loss + or - 20%, ....?or more likely heat loss - 0 to +40% Or heat los...

6 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Samsung Gen 6 outdoor unit - what is the colour code?

Possibly RAL7035? Try matching using the attached colour chart

6 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Book: Not Zero

@jamespa a) yes, most probably b) yes, it's a trait we humans have c) a sweeping statement and that's the bit I find very hard to agree with.

6 months ago

Forum

Well & Truly Off The Grid

RE: Book: Not Zero

@jamespa Exactly! The book is about the political response....the science is not in dispute.

6 months ago

Forum

Well & Truly Off The Grid

RE: Book: Not Zero

@judith Its a political subject. You have to ask yourself just how many Labour supporters would give a glowing review on a Tory manifesto? And how man...

6 months ago

Forum

Well & Truly Off The Grid

RE: My horrific Samsung heat pump installation and experience

I have always thought the volumiser should be plumbed in series with the secondary heat exchanger and not in parallel with it (as shown in @iantelesco...

7 months ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Do setbacks save energy without compromising comfort?

@cathoderay I would suggest you investigate the power requirements of your circulating pumps and subtract that figure from your daily energy in calcs ...

1 year ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Do setbacks save energy without compromising comfort?

@jamespa Would you kindly but briefly explain the term "degree minutes per day" and how they relate to heat pump running costs. Also why no mention in...

1 year ago

Forum

Air Source Heat Pumps (ASHPs)

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