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RobS
@robs
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Joined: Oct 15, 2024
Last seen: Nov 4, 2025
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Topics: 0 / Replies: 56
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

There is, the Mitsubishi R290 8kW has a 6kW inverter and a 2kW fixed in the outside unit. The 2kW is only used when more output than the 6kW can produ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat Pump + Dynamic / Smart Tariffs - what is your approach?

Presumably the timer for timed DHW, that @jaket suggested, is just the standard feature of an Ecodan controller (and other heat pump controllers), so ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

That's odd, you should be able to set 3 or 4 levels of quiet in the installer menu. Mitsubishis also have an Eco mode for DHW, you might want to tr...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

@davidalgarve Much bigger heat pump than us but still a surprising amount of power, do you have it in Eco mode? Or use quiet mode? If it uses 3kW ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

Most batteries are what is known as DC-coupled, which means that they use the solar inverter to convert their DC voltage to AC used in your house. So ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan with FTC7 controller DHW schedule

Cosy has the 3 hours of peak rate and the day rate is appropriately 1.5p per hour more - which is appropriately equivalent to another hour and a half ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan with FTC7 controller DHW schedule

142L is not very big but if you don't use much DHW then it's worth seeing if only one DHW reheat a day works. Do you have a battery with your solar...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan with FTC7 controller DHW schedule

We also have a FTC7 and a newer R290 Mitsubishi heat pump. There are prohibits for heating and DHW, to schedule the DHW you want to prohibit the DHW f...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

I would suggest: Mag filter last on return so it filters out stuff before it gets to the outside unit. Do you also have a strainer in you system? ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

I don't know if the FTC6 and FTC7 are different in this respect but the FTC7 rounds up and down as you would expect (no odd .38 and .53 rounding point...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: From Auto adapt to W/C Ecodan

@westkent Almost, the wireless controller just becomes a limiter, if the internal temperature goes 1C above the set temperature then the heat pump w...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: From Auto adapt to W/C Ecodan

When on WC the WC curve controls the heating based on the outside temperature. You can use schedules for DHW (hot water) though. What are you trying t...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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