On Mar 26, 9:29*pm, YAPH wrote:
Is there such a thing? The boiler I have to replace on Monday will have
one of its fixing holes in the hole which I'll have to block up from the
large un-fanned flue of the boiler I'm replacing.

There are various ways I could work around the problem but the ideal would
be a mortar that sets in, say, 30 mins - 1 hour.


The Wickes quick setting 10kg one does. Or get some vanilla cement and
make it with hot water. Or if youre really in a hurry, mix some old
plaster up and watch it flash set.


NT