I have not irst hand experince, but I'm going to take a big stab in the dark and say it is probably safe, for one reason.

Have you ever worked on a loading dock? I've been in trailers that had been in the sun all day when it is a hudred degrees out. And this stuff is carried on trucks, so to be safely shippable, it should be able to deal with the heat.

But I'm just guessing. Your stove's manufacturer would be able to say for sure.