I bought a new lagging jacket for my parents copper boiler in their hotpress. The Question I have is whether there is any benefit in putting it around the original lagging jacket that is already there or should I just take that off first?
Thanks Noah.
I've just finished putting on the new jacket over the old one (which turned out to be a bit difficult and dirty underneath when i tried to remove it so I left it) so will wait a while & see how that works out.