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Kev M
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Kev M
@kev-m
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Joined: Mar 5, 2021
Last seen: Jan 8, 2025
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Topics: 10 / Replies: 1266
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RE: Vaillant arotherm plus 7KW electric usage

As you've pointed out, it's very cold and these are about the worst sustained conditions your ASHP is likely to encounter. 40-50 kWh/day for a 4 bed ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Tepeo ZEB

Its capacity is 40kWh. That's not going to last very long in winter then you'll be on to peak rates. It is what it is I suppose - a big storage heat...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
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RE: 17kw Grant Aerona heat pump not performing

That looks to me like two things are happening. The large drops in flow are the thermostats turning the ASHP off. This happens at about 7, 9 and 10pm...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan 11kW ridiculously expensive running costs. Help!

This is more likely to be defrosting. (The term cycling is usually used where the ASHP can't modulate down low enough where the load is low) My Ecoda...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

For the thermostat, yes, I would put in the living room if you can live with the hall being colder. A couple of degrees is normal but keep your door c...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

HW depends on your usage pattern but if you can get away with once or twice a day that should be better. Whenever HW comes on the heating stops so it...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi ecodan settings

This one is a good explanation of different heating modes and this one for timing heating/HW. The most efficient way to run it is on weather...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Clarification needed for Ecodan ASHP settings

@tufty It's an expensive time for ASHPs (and other heating systems). My COP has been 2.8 for the last 4 days. Lower today I think.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Method for monitoring ASHP usage/efficiency in real time?

This is how you hook up power and electricity meters. They are separate connections so I assume you can do one without the other. T

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Method for monitoring ASHP usage/efficiency in real time?

you need one of these or similar.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Method for monitoring ASHP usage/efficiency in real time?

You can see the current day; just overwrite the dates. You can keep the report open and press the energy button to update it. Not quite real time but ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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