Last seen: Jul 26, 2025
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...
@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 ...
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 ...
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 ...
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...
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...
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? ...
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...
@westkent Almost, the wireless controller just becomes a limiter, if the internal temperature goes 1C above the set temperature then the heat pump w...
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...
A few Mitsubishi figures from their data book for comparison... 5kW output at 12C OAT: 5kW unit is COP of 6.15 11.2kW unit is COP of 5.9 ...
To quantify the greater pressure drop of your corrugated pipe you could try using an online calculator like For example, at 20 l/min a 25.4mm corrug...
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@eliuccio good to hear you’re happy with the install. A...
By Mars , 13 hours ago
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RE: Is this just haze or something more?
I am not a scientist nor a meteorologist and I know the...
By Toodles , 1 day ago
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RE: Benefits of an extra horizontal loop for GSHP
It will improve performance, but by how much depends on...
By Brendon Uys , 1 day ago
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RE: The good, the bad and the not that great – my heat pump installation
Said I would pop back with a update. Only Mr Jesus h...
By Burtis , 2 days ago
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RE: Buffers, hot water and cooling
Thats presumably heat pump DT, what about radiator DT a...
By JamesPa , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Exactly the same here. We now have 13.5kWh ...
By Old_Scientist , 2 days ago
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Compressor and Evaporator Stratification
I have had a few issues with my Hitachi spilt heatpump ...
By trebor12345 , 2 days ago
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RE: Wood burner with ASHP - direct air?
This depends on the size of your wood burner and size/t...
By Lucia , 3 days ago
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RE: Difficult positioning of air source heat pump
@rikiarn It's a not a buffer it's a volumiser which is ...
By Lucia , 3 days ago
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RE: Is your heat pump insured?
To make things clear, lots of insurance companies cover...
By Lucia , 3 days ago
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RE: Boxt Heat Pump Installation Experience
@adrian any updates since installation? How is it perfo...
By Ashfp , 3 days ago
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RE: Say hello and introduce yourself
Hi @seatonian - Yes, I know Seaton, and I have the Nat...
By Transparent , 4 days ago
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@seatonian got your email. Will connect you with a reco...
By Mars , 5 days ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 7 days ago
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RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 1 week ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 1 week ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 1 week ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 1 week ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 1 week ago