Mattg4321

There’s a big safety difference between 110v tools from an isolating centre tapped site transformer and 230v tools, often from a PME supply. That said, most small sites use 230v only (where not cordless) as it’s much more convenient not lugging the transformer around. If on a suitable supply with RCD then it’s acceptable as long as no significant ground works/outside works imo.

The Zappi will take a third of the power from each of the 3 phases. Roughly 7.3kW per phase. Most of the rest of the questions need to be directed at your electrical contractors. There are a number of ways of doing it depending on the requirements of your various buildings. You may not require 3 phases at your main house, depending on what loads you will have installed. It might be best to pull the cable in with that in mind for future though.

I’ve just realised I never followed up on this one. I spoke to Heatmiser technical and they told me the proximity sensors calibrate each time the thermostat is turned on after being switched off at the FCU for the boiler etc. My wife’s dressing gown was resting against it every time I had done this previously, which messed up the calibration. I removed the dressing gown, power cycled and it’s been fine since!!

Yes, don’t do it! I’ve fitted countless of these type of lights in the past within retaining walls. They always end up filling up with moisture and causing problems. IP55 is not enough for the environment it will be subjected to. In my experience you need to be looking at IP68, which generally means ELV. I normally use Collingwood. Problems are extremely rare and it’s much safer as a bonus. Don’t be tempted to use SY whatever light fittings you decide upon. It’s not a substitute for SWA and it’s certainly not designed to be used outside as the UV will destroy it (I’ve seen countless AC installs where this has happened). H07 in ducting is a decent choice if going with ELV

I really need/want a hard wired stat so the neoair is out. perhaps I’m going to have to try and source a neostat v1 second hand. Absolutely crazy really. Will speak to heatmiser today.

Having this same problem. About to get lynched by the wife. Is there a fix for it, or a way to turn the damn proximity sensor off?