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Gary
@gary
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Prominent Member
Joined: Feb 8, 2023
Last seen: Aug 13, 2025
Profile Activity
Topics: 2 / Replies: 348
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Reply
RE: Weather compensation and air source heat pumps

@sarah can you also post a picture of your WC curve. When the heat pump is running under the engineer mode go to running information and input code ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimising ecodan ASHP

@rod I don't have monitoring on the Heatpump itself but the house load with my heat pump running is about 1KW and my background is around 200W so at 3...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimising ecodan ASHP

@rod Thanks for the detail, I definitely haven't seen that behaviour on mine, but mine is a bit too small. I don't believe the Ecodan can modulate th...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimising ecodan ASHP

@rod what is the difference between your flow and return before the drop outs? I find mine will run continuously if the dT is no closer than 2C ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Optimising ecodan ASHP

@rod what is the difference between your flow and return before the drop outs? I find mine will run continuously if the dT is no closer than 2C ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Icy cold weather, weather compensation and consumption

Before you were cycling every 20 mins has thst now stopped at 32C. If the temp doesnt drop so that the thermostat turns it back on in 20 mins then it...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The cost of electricity for the winter.

Unless we have a really cold winter I think you will use less than you have calculated, my entire house used 5000Kwh start of Nov to end of Mar last y...

2 years ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Poor COP with an Ecodan

@adam_colwell no the unit needs to be running but the temps weren’t any different try again in a bit see if they have changed

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Poor COP with an Ecodan

@adam_colwell is the unit running or it couldn’t be doing a defrost as the flow and return are the nearly the same. if not check again when it is. I...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Poor COP with an Ecodan

thermistor readings are the page below where you got the pump speed from. There will be readings for THW1 and THW2 they are your flow and return temp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan 8.5kW Monobloc (FTC5) Defrost Mode

Yes apologies it was a sweeping generalisation mine is slightly undersized hence it can’t get the flow temps higher than 40C when it’s subzero outside...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Icy cold weather, weather compensation and consumption

They have well built houses rather than the open barns we have and relatively cheap electricity. I had an air tightness test performed on my house th...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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