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HughF
@hughf
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Noble Member
Joined: May 2, 2022
Last seen: Jun 27, 2025
Profile Activity
Topics: 5 / Replies: 484
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Reply
RE: Massive Electricity Cost

Yep, Glyn did a good job of that install. He followed the Midsummer wholesale wiring instructions and has a PWM controlled primary pump.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

@batalto Interesting.... Any Mideas with level 3 monitoring floating about that we can have a look at?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

Shocking COPs from these Midea units in the current climatic conditions. For comparison, here's a samsung gen6, running without a buffer or LLH, on th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is your heat pump insured?

Just over £3k retail for my unit - if I get 6 years out of it, that’s £10/week. I spend more on my lunch. All jokes aside - I tend to not be one for...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

I’ve said it before, Grant made these Aerona installs appear just like a boiler, because their fitters were used to installing boilers. Their plumbing...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is your heat pump insured?

I've never insured a heating system and would have no intention of doing so when the heatpump goes in (we're in the middle of the planning stages).......

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: LiFePO4 cells, inverter and other bits for sale

I might be tempted to upgrade from my CALB 210aH LiFePo4 prismatics as they are 11yrs old and a bit tired, what were you thinking of for the cells?

3 years ago
Forum
Buy & Sell
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RE: Massive Electricity Cost

If you have an LG Therma V, you might want to experiment with changing the 'Select Temperature Sensor' settng to 'air+water', which automatically mixe...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

And here is the Grant manual. Note that the grant manual makes extensive mention of the external heating controls, which serve to hide away the smarts...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

Attached, the original operating and programming manual for the Chofu controller, the unit with the sticker on the front. This is where you need to be...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

I’ll see if I can jump on this thread today with some more information. The grant ashp is a capable machine, made in Japan by Chofu and the weather co...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung 12kw efficient running. The little tweaks.

If you want to see what the flow/return looks like on a 5kW Samsung gen6 with a pwm primary pump, for comparison:

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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