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HarriUp
@harriup
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Joined: Nov 25, 2021
Last seen: Jun 28, 2025
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Topics: 1 / Replies: 107
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RE: My Mitsubishi ASHP has used 1078kWh from 25 November to 31 December – Help please

Yes, you are right. And so far in Feb you have been using 10kWh per day for heat and HW. Which might be just enough in a small well-insulated house, b...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Keystone COPs? I'm not getting the efficiencies I expected on my Ecodan.

When I look at the energy consumption when the unit is cycling I often see a dramatic short but high increase in power draw before it goes into a rest...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My Mitsubishi ASHP has used 1078kWh from 25 November to 31 December – Help please

And while you're on the photography assignment!! a pic or two of the energy screens, particularly the one that shows totals for the past month and yea...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The death of the ASHP?

Of course higher electricity prices make it more unattractive, but the premise of question assumes that electricity becomes more expensive than altern...

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

The EcoDan preplumbed cylinder would have been, er, preplumbed and prewired in the Mitsubishi factory. Not that mistakes don't happen of course. Dav...

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

As I understand it you have to have extra monitoring input to the FTC board (such as you would with one of the MMSP monitoring packages) to get more d...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My Mitsubishi ASHP has used 1078kWh from 25 November to 31 December – Help please

If you can see a small box like this attached somewhere near the cylinder or controller then you should be able to connect to Melcloud (there will...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My Mitsubishi ASHP has used 1078kWh from 25 November to 31 December – Help please

Hi Sarah – I have a similar sized Ecodan and your energy consumption figures are very similar to mine for Dec and Jan, directly a product of the cold ...

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

Are you sure the DHW pump is over-running? It would quickly be pumping the cold water that was entering the cylinder low down as hot water was drawn o...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New ASHP user struggling to understand

I would concur with Kev M that you are better off setting the target temperature setbacks in the schedule section of the controller, at least until th...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi 8kW - strange energy use readings

@gfletcher I have a similar setup to you – an 8.5kW Ecodan alongside PV – and have noticed a similar pattern over the summer. Melcloud has reported...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
A new install (Ecodan?) with solar thermal
5 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 2
Views: 3421
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