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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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RE: Real world running cost estimate for 20KW ASHP

@thebarn massively oversized for the heat demand then… Have you seen the heat loss calcs the quoting company have produced?

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world running cost estimate for 20KW ASHP

25,000kWh over 6 months, at 23hrs/day of heat input (allowing 1hr for dhw) gives you a continuous heat input of just over 6kW. I bet you could get a...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Problems with Daikin 18 kW High Temp ASHP

Every Daikin data sheet I’ve seen says 60 max…. And Daikin are keen to use their built in backup heater at every opportunity, so we see quite a lot of...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The weakest link – components of an installation team

Project management is a hard task…. My sister has made a career out of in and it’s all encompassing. She works in the charging infrastructure space fo...

1 year ago
Forum
Well & Truly Off The Grid
Reply
RE: Take-aways from the Installer Show

I’ll be attending Installer ‘24 at the NEC this year, unfortunately just for one day. But it might be a good opportunity for a forum get-together? It’...

1 year ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Problems with Daikin 18 kW High Temp ASHP

Radiator upgrades really are something that people should do… a 600x1200 type22 is about £75 from Screwfix, comes with fresh new white paint, no sludg...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 4 Year Ongoing Heat Pump Battle

Just to bias the conversation the other way, my retrofit install in an old house with marginal 50mm cavities works perfectly. The house is larger (we ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are heat pumps so hated?

Unfortunately most people seem to think that if it costs more money, it must save money….. this doesn’t help when comparing things to a gas combi swap...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are heat pumps so hated?

Working my way through this…. One thing I would say, when everyone says ‘they don’t work’ what they mean is ‘they don’t cost less than a gas boiler’. ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hacking a heat pump to increase heating range over 38C

Most hot tub heatpump controllers allow you to offset the flow temperature sensor by a fixed value… failing that you can just fudge the resistance....

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity use for heat pumps - comparing homes and consumption

I’ll pull the numbers from the smart meter and let you know… we’re on the backstop energy rate, and on prepayment… I top up around £70/week at the m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan - optimal external installation?

I’d consider my system to be installed quite optimally… I have one anti freeze valve, no flexis, and over 20m of buried primary pipework. I also don...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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