I'm building an outdoor 6" Batch Box RMH with two dead end benches feeding off the main bell.
I've obtained some nice limestone slabs that are 20mm (0.7 of an inch) thick. I plan to use these as the bench tops, they're nice and smooth and feel quite comfortable to sit on
My question is: will they be able to take the heat without cracking or suffering any other damage? Does anyone know what sort of bench top temperature such a system would generate?
Thanks as always for any help.