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Last seen: Oct 16, 2026
I think we're talking at cross purposes here. The above test is with the ASHP completely turned off. The setup is mains -> power meter -> contac...
Here is the full setup (I really should tidy that wiring...): Disconnected tank stat at the top pocket, thermistor going to the ASHP in the middle...
Also to add, on the original Grant wiring there was a separate tank stat which is in the pocket at the top of the cylinder. I have disconnected this a...
Hmm. When they say the pipes are in the walls, is this all the 22mm of PEX you showed upthread? Do you know where they all go? Roughly how long is the...
@heymikey OK, so that rules out a number of things. I would lean towards thinking you do actually have a flow restriction of some kind. If it's not ai...
Hello @heymikey, I'm not Cally and I haven't read the whole of this thread, but I did have noise problems with my Grant before I rewired it. So just...
Hmm, I need to have a crawl around and check the radiator piping but I think it's all one 22mm backbone with 15mm drops - a couple of drops serve two ...
Some fair points... I've been doing some investigations. The system is balanced, in the sense of delivering heat evenly without cold spots. However ...
Good spot, I'd missed that 'short circuit' path. Here's another go: If no V1/V2/V3 are powered (all NC position) then we're in classic buffer hea...
Agreed, you get loss of optimality - but it continues to work, rather than just breaking. That's what I'm trying to do: design and insulate it ri...
I wondered about that. Wouldn't that potentially cause issues with flow rates? I have no idea what the flow through the radiators is, and I thought th...
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RE: How will removing the standing charge on gas bills benefit heat pumps?
I'm not sure it makes much of a difference to heat-pump...
By Temperature_Gradient , 9 hours ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 10 hours ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 11 hours ago
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RE: New Build 3 Phase or 1Phase
We are on three phase power because it's an enormous li...
By EtchedPixels , 11 hours ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 1 day ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 2 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 2 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
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RE: Passiv Smart Thermostat - Help & Forum Support
Obviously the weather is changeable but there's a defin...
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@rob-of-york I must admit that when we had a Daikin hea...
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RE: Forum updates, announcements & issues
Get the Renewable Heating Hub heads-up on WhatsApp. I...
By Mars , 3 days ago
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RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
@editor I pointed out to the one of the Fuse execs that...
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews As well as loft insulation, there are othe...
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