I would steer clear of the Flex range, there are still reports of firmware bugs. The G2-12 and G2-20 (having up to 12 zones and 20 zones respectively) can be picked up from eBay for less than £50 and are more solid. They don't come with any manuals - though Google is your friend here. They are...
What about something like this? It might even hide behind the lamp if you're lucky. http://www.amazon.co.uk/WEATHERPROOF-CABLE-CONNECTOR-GARAGE-GARDEN/dp/B008D2L0GU
Failing that can you pass the cable through the wall into the house right behind the fitting then use internal connectors?
How about sending him one back saying you aren't paying him until it's actually finished?
You really don't want steam being vented into your loft. You'll end up with condensation on the underside of the roof and the rafters rotting.
You probably have a few options. Either going out under...
This really isn't a DIY job. Find yourself a local electrician who can come and give you a quote to do it. Whilst you'll probably be able to save some lonely by doing the labouring (digging the trench etc), this is something that you'll have to confirm with him.
Another example of mad wiring. The 3 port valve on our heating has come to the end of its life. Having taken the lid off the 'wiring centre' to connect in the replacement I found this madness.
Unsurprisingly there are two groups of green/yellow wires. One set is the actual CPC, the other...
RF I know you're right as always, though I don't follow why. Then again I'm not a sparky.
Why does the new T&E not have to be 6mm? Surely a fault on that cable (eg straight short) would cause the cable to melt before the breaker tripped out? Is the idea not that the breaker protects the...