Thanks all, yes it's the heat I'm worried about more than the SQ.
@gdnrbob - I'm using metal because that has a high heat capacity so it will be the most accurate to test for how hot a black body will get.
If I end up making radiation shields they won't be metal, or at least not all metal. I doubt I'll make radiation shields though, I will likely either have proven it's safe or move the speakers when using the fireplace.
@gdnrbob - I'm using metal because that has a high heat capacity so it will be the most accurate to test for how hot a black body will get.
If I end up making radiation shields they won't be metal, or at least not all metal. I doubt I'll make radiation shields though, I will likely either have proven it's safe or move the speakers when using the fireplace.