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Last seen: May 10, 2026
Sorry if this is a daft question but doesn’t the heating curve continue on to the max output of the ASHP i.e. if you set say set 32@-3c for example, w...
Yup that will be your lack of pressure
@crimson mate you have proper been through the wars, I really hope you get some resolution, and soon.
Rich roast Columbian esspresso!
@crimson if you have one installed, are you able to check the ball valve filter just before the outdoor unit? This was the cause of my lack of flow
My system design was 45c @ -3c which was way too hot for us. I slowly adjusted it down as we went through the end of last heating season to 32c @ -3c ...
Look at you with your fancy schmancy variable PWM pump lol! I am now very envious! The Grant has three settings and a manual flow restricter. Mine loo...
@editor another great episode, but same as @phil-bell I am now going to have a good look at my flow rate, my lowest flow rate I can get out of my Gran...
I have the same unit and controller and it has been a journey of learning to say the least. After a terrible ECO4 install it has taken nearly 10 month...
Also if you have a copy of the manual it would be useful to see it. The ones I have seen are really badly written and make no sense lol!
@polar-bear lol well done and welcome to the tinkerers club lol!!! Just out of interest what information/settings does it give you access to? Can you ...
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Latest Posts
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 hours ago
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@kilgorexv, I actually think doing your own calculation...
By Mars , 3 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 17 hours ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 1 day ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
There is scope for product development here. I for one...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 2 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 5 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 5 days ago
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RE: Is it the house or the equipment?
...which, I've found out, is pretty much impossible to ...
By Majordennisbloodnok , 6 days ago
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