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Mike Patrick
@mike-patrick
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Honorable Member
Joined: Mar 23, 2021
Last seen: Jun 1, 2025
Topics: 18 / Replies: 154
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RE: Heat pump efficiency v Outside Air Temperature

@cathoderay "The annual figures since 2022 have been very consistent". Sorry I was being loose with my language - I was referring to the fact that o...

8 months ago
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RE: Heat pump efficiency v Outside Air Temperature

The heat pump is running on weather compensation. My data readings are unsophisticated. I take daily kWh readings from the smart meter to track day an...

8 months ago
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RE: Heat pump efficiency v Outside Air Temperature

Returning to an old theme (it must be the onset of colder weather) I have done a new analysis of our kWh usage over a year. The chart is attached. F...

8 months ago
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RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps

@heat-pump-newbie I've only just spotted your post. There seems to be a lot of inconsistency in the EPC ratings. My main heating is an ASHP with under...

9 months ago
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RE: Gravel trays and flexible pipes

@toodles Happy ending for me. Grant supplied me (gratis - thank you Grant) with a connector for the condensate drain hole. I connected a short se...

9 months ago
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RE: Gravel trays and flexible pipes

@toodles I've not paid much attention to the condensate outlet on my Grant heat pump until recently. It just drips onto the concrete base laid for t...

10 months ago
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RE: Questions about yearly heat pump maintenance

I have just cleaned the fins on my ASHP with this (other brands are available): There are no local retailers so this was from Ebay - £30 for 1 litre...

10 months ago
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RE: Single vs. three phase for heat pump, EV and appliances

@derek-m That''s the irony of electric vehicles isn't it? Being heavier than ICE ones they need more energy to move around. The extra energy needs to ...

10 months ago
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RE: Single vs. three phase for heat pump, EV and appliances

I have single phase with a 100A fuse (we are a 100% electric house). The wiring is only 7 years old and we have a smart meter. The DNO is SSEN in this...

11 months ago
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RE: Why are heat pumps so hated?

@majordennisbloodnok I chose my words carefully! Mike

1 year ago
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RE: Why are heat pumps so hated?

@jamespa Equally, to continue the car analogy, it is valid to ask, would you buy a car that doesn't give you a continuous MPG (L/100km if you are met...

1 year ago
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