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Mike Patrick
@mike-patrick
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Honorable Member
Joined: Mar 23, 2021
Last seen: Nov 10, 2025
Profile Activity
Topics: 18 / Replies: 165
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RE: Electricity use for heat pumps - comparing homes and consumption

Many of the above , in my dreams. 2023, June 479, Nov 1,120, Dec 1,359, Jan 2024 1,491 These are total kWh per month from which you can subtract ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson My experience too. I never considered going online to discuss the performance of my gas central heating. It generally just worked - like my c...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: To zone or not to zone?

We run on WC but the UFH heating was set up with separate loops to every room. Each has its own thermostat, which provides the upper temperature limit...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

@mattc Here's the same chart with the Excel exponential line added. I could subtract the background 8-10 kWh per day that is used when the ASHP is o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

@sunandair We leave the ASHP running at the same setting 24/7 (except when switched off in the summer or while away when its left on UFH only). We aim...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

@cathoderay It's just manual collection of data. I read my MAxMin thermometer and the electricity meter once a day and input the numbers into Excel. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

@sunandair My data collection is very simple - to match my technical knowhow. Each day take one reading of my MaxMin thermometer and the electricity m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump efficiency v Outside Air Temperature

@marzipan71 My temperature data comes from my own Max Min thermometer. This is carefully placed in the only point in the garden which is in the shade ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Heat pump efficiency v Outside Air Temperature
2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 30
Views: 6374
Reply
RE: Interesting development on defrosting

This ties in with my post on the 5th. Air temperature today 2.4C (colder than on Friday) but humidity only 72% (was 94% on Friday). No frosting of...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Gravel driveway

We put down a gravel driveway 7 years ago on completion of the building contruction/refurbishment of the house. It was just mud and rubble. We used ...

2 years ago
Forum
DIY
Reply
RE: Interesting development on defrosting

My heat pump frosting up this mormning. Outside air temperature 3.4 C, humidity 94%. Prepare for large KWh consumption today. Mike

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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