In message , Aidan Karley
muttered:
I put a couple of rolls of loft insulation onto the underside of
the (plastic coated) steel bath before I put it back in place. For
keeping the water warm while having a soak and a read - use bubble
bath. Much more effective, and doesn't make your skin itch.

How did you attach it?? Sounds like a good idea!

--
Andy