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Kev M
@kev-m
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Famed Member
5606 kWhs
Joined: Mar 5, 2021
Last seen: Jan 8, 2025
Profile Activity
Topics: 10 / Replies: 1266
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Reply
RE: Mitsubishi 8kW - strange energy use readings

Mine loses about 0.6 degrees per hour so a bit less. Is your HW tank outside the house, e.g in the garage? That would make it lose a bit more than in...

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

@westkent I think you are suffering from the same problem described above; Melcloud over estimating consumed energy when the heating is off.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help required with Mitsubishi engineer report...

Am I misreading these graphs? It looks to me as if the overall COP is around 3 across the year, including the shoulder months. With HW being 40-50% ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help required with Mitsubishi engineer report...

@tobydeh, - is it just the downstairs that is 180m2? From the plan it looks like the total is 360m2 or so. If so, your consumption and the ASHP si...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on ball park radiator sizes please

Looking at your numbers quickly I'd agree; about 50% oversized. These rads are enormous. The sizes you quote aren't quite standard but a 2m wide K3 ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecdon Third party Thermostat Issues

@Derek-m, if you look at the dip switch settings in 5.4 of the FTC6 manual, it says how to set the logic for the 3rd party thermostats. If these were...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Valves, Radiators & Controls
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RE: Ecdon Third party Thermostat Issues

@adam_colwell Have they ever worked? For 3rd party controllers to work with the Ecodan they need to be working and with good batteries, connected t...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Valves, Radiators & Controls
Reply
RE: ASHP commissioning woes - am I being overly critical?

@akius, the total energy usage in the MCS sheet is the amount of delivered energy your house needs for space heating and DHW. If @Tim441 is consum...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP commissioning woes - am I being overly critical?

Hi and welcome to the forum. It's hard to equate test conditions performance to real life. Having said that things have moved on, and modern ASHP...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

@Shep, having a booster isn't necessarily a problem as some ASHPs (e.g. some Daikin models) seem to come with one as standard. I would be more concer...

2 years ago
Forum
Introductions, Forum Rules & Updates
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RE: Say hello and introduce yourself

Not sure but somewhere there should be a design ambient temperature/flow temperature for the heat pump - something like 50 deg flow at -4 deg ambient....

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

Hi an welcome to the forum. I'm assuming you've had full heat loss calcs done and they support the spec of a 12kW ASHP. What's you outside temperatur...

2 years ago
Forum
Introductions, Forum Rules & Updates
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