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HughF
@hughf
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Noble Member
Joined: May 2, 2022
Last seen: May 5, 2025
Profile Activity
Topics: 6 / Replies: 482
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RE: Ecodan. How to run this efficiently with zero understanding.

@derek-m I had missed that the dhw tank didn’t have a coil in it, silly me. That would indeed require an external heat exchanger to load up the cylind...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan. How to run this efficiently with zero understanding.

Plate loading the DHW coil, that’s a new one on me…. And is madness. Totally unnecessary and a massive performance hog.

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

They were sending copies out to anyone go asked for a while, not sure what the current situation is as they’ve taken down the video instructions from ...

2 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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RE: Heat loss calculators and spread sheets

I’ve used the freedom spreadsheet for my own place and am halfway through doing the calcs for my builder friend on the same. I’ve also modelled my ...

2 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Latest NIBE model has known defect and no solution

I sort of figured that this installer was a NIBE only installer, as he’s complaining about unit availability. I agreed though, it would be best if he ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Latest NIBE model has known defect and no solution

I’d find another installer to chuck something else in, then get this installer to refund you. Plenty of stock of decent units in the UK from other m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

@cathoderay it has an indoor temperature sensor… so it always knows the error between the setpoint and the actual indoor temperature.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

It'as precisely this control strategy that is (I think) employed in Homely - indoor temperature sensor to know and learn the thermal response of the p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Getting the best out of a heat pump - is Homely a possible answer?

@derek-m the same oscillation would occur if the weather comp didn’t match the property, and the system was running on an on/off stat. Please don’t ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Getting the best out of a heat pump - is Homely a possible answer?

I think we can agree that users need a system that, in response to the indoor temperature and their preferences, takes control of the flow temperature...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm monobloc error f.788 - ASHP is not working!

@bobshopsupreme I don’t want to be Mr Pessimism, but all domestic heating circulation pumps comply with a standard specification for pwm control and p...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: LG Therma V R32 Monobloc. Setup advice inc flow temperature & weather compensation

If you set the temperature sensor option to air+water, this will enable a blended mixture of load compensation and weather compensation. In other word...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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