Last seen: Jul 4, 2025
Can you post a picture of your LLH how much volume does it have? What is the flow speed in your primary circuit, go to service menu, running informa...
You are correct primary is the top right from the heat pump, secondary pumps round the rads you can’t break anything by turning them down. Turn prim...
If you have a mitsubishi preplumbed cylinder then its unlikely to be a low loss header, although that's what they call it, it has no volume its just a...
@jamespa, I can't check modulation but it will be running flat out but I think my is slightly undersized so don't really have any spare capacity to co...
Here is an example of what my 8.5kw Ecodan did last night when it was very damp and 1C outside. It defrosted every 50 mins, that takes 5 mins and ...
@grumpidoc so as it’s one zone you should only have that one pump for the heating. As I posted above you should be able to turn that all the way down...
Correction forgot to x 60 to get to L/min otherwise its in seconds
@grumpidoc Its from the mitsubishi databook see extract below Do you have an Ecodan preplumbed cylinder or a different model, a picture of your cy...
@alsocold123456 It doesn't sound like there is a problem to fix with your system that is pretty much what mine is doing in this damp cold weather. A...
@tallmarc stated noise levels are made at a defined outside temperature not the worst case which is what we currently have in the depths of winter, mi...
@ngillam Depending on your controller the pump speed for the HW can be controlled in 2 ways newer versions have pump speed in the service menu for bot...
For such a small space wouldn’t A2A be better than A2W and you get cooling in summer.
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RE: Heating coming on when not required
I played with a max heating temp but there is a world o...
By JamesPa , 3 hours ago
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RE: Pressure drop Primary circuit
I've always regarded topping up heating systems as my j...
By JamesPa , 4 hours ago
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RE: Heat pump solutions and/or installer recommendations for France
I’d travel to France for work if you were struggling wi...
By Damon Blakemore , 10 hours ago
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RE: Ecodan consuming 100kwh per day in new build!!!
Hmm Before doing that I would want to be certain that...
By JamesPa , 15 hours ago
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RE: 5 Star Service from Havenwise
That's always a danger with any new good idea, @morgan....
By Majordennisbloodnok , 16 hours ago
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Have your say in the Renewable Heating Hub Awards
It’s time to celebrate the best (and call out the worst...
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RE: Mitsubishi cycling while on chilled water output
@iaack yes there's no denying that cold air sinks! I s...
By downfield , 1 day ago
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RE: Weather compensated secondary circuits with Biomass
@andycoo that flooring sounds ideal. Extra volume is ...
By Sune , 2 days ago
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If you are thinking of heating on the immersion conside...
By JamesPa , 3 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@tomasmcguinness, I think your best bet would be using ...
By Aventus Eco , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles all depends on asking the right questions! And...
By Tim441 , 3 days ago
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RE: Commencing on an ASHP Installation Process
I received confirmation this morning that my Greener Ho...
By Sheriff Fatman , 4 days ago
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@jamespa Thanks for the advice - very helpful. I had al...
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RE: Adding battery storage to SolarEdge PV system
@chandykris No need to apologise at all! I forgot to ad...
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