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@MarvinWhat are the CT relays you speak of? What drives the relay?

It would be nice if they inverter provided a set of contacts to signal when the batteries were full and then a relay could be used for the iboost.

Looking at installing a battery inverter as mentioned in another thread. At the moment I run a Solar iBoost for the water heater. Obviously I do not want both CT running together trying to reroute the solar to battery storage and to the immersion heater at the same time. Has anyone got any experience of running these together? Does the inverter maybe have an output to say when batteries are full and I could run that through a relay to the iBoost?

Yeah it is SWA and SP ducting but its all mine. I think I will try a fibreglass tape, it would be too many rods.

The duct is one of the Scottish power 32mm (ish ones) and the cable is the same as the main incomer (20-25mm2 I think, with armour). So itll be a tough pull and a risky one if something goes wrong.

I am going to have a look and see if I could get a cable fish through the electrical duct. It's tight and long so I doubt it will work but I'll try and take it from there.

Unfortunately not ducted in an accessible way for the garage, an oversight. What options are there for wireless CT @Jenki?

No, unfortunately my main incoming supply is in the attached garage while the existing solar is in the detached garage. Batteries will need to be near the incoming supply for the CT.

At the moment I have 3.6kw solar installed in my garage. I am planning on installing some batteries and was wondering if it is possible to install a Hybrid battery inverter like this Solis one but not have any solar panels connected, so effectively have it operate as an AC coupled? This would leave me the option of adding a second solar input to it in the future. Will it behave as an AC coupled and still charge off my existing solar when it starts to export?

Thanks, the ones linked are LFP. I would probably build a small enclosure with hardie backer boards or something to be safe anyway.

Has anyone taken the plunge or have any experience with ordering Chinese battery storage systems? I was looking at something like this. Looks very similar to the pylontech US range. 5kw is around £1100 and 10kw around £2100, so not far off half the price.

Just drill a hole, push them in and then tap in the centre rod and it spreads out and grips like a wall plug

These. My PIR was seconds so some sheets were bowed so I used these to hold them down till screed was poured.

That's a shame then. Can only think it's not being pulled in tight enough by the screwless clips/magnets. Just been a walk round and I am happy with mine, it's almost invisible and they helped with not pulling the faceplate into the paint when tightening.

Did you install the drywall boxes before or after plastering? I put mine in before plastering to ensure there wasn't the white lip with the box sitting proud.