I just realised I didn't video fixing the temperature issue with the instant hot water heater in the bathroom. There was a little shut off valve in the box that came with the unit and I thought it was just to turn off the water (instructions were in French!) but it wasn't. It reduces the incoming flow to the heater so the unit can actually heat the water rather than the flow being too fast for it to heat. The bathroom door didn't close and there was no heat in there so all that got ticked off the list. William was in charge of handing me tools, wall plug installation and screw installation.
Thanks again for all the comments. I'm way behind on replying to them all but I will get there!