On Saturday, January 27, 2018 at 6:22:57 PM UTC, wrote:
On Saturday, 27 January 2018 17:51:10 UTC, George Miles wrote:
But I've removed the loft above the bathroom: now the tank's at the
top of a very tall room and over it is an OSB3 ceiling, 8 inches
of kingspan , osb3 and an EDPM rubber roof.

Then it's in the warmest part of the room and as long as you heat your bathroom it's not going to freeze.

Owain

I don't heat that bathroom, except for the frost heater which I had on in December and may have kicked in once or twice.

It's on a lot of extension leads.

I'm hoping to put it (and a fan) a new lighting circuit.

[g]