Review on Aluminum Coated Fiberglass Reflective Sleeving by Victor Ceja

I used it to protect audio from heat; I had to run the stereo speaker wires inside the gas fireplace's airbox, which gets hot when the fireplace is in use. The air box around the chimney is a thermal buffer for the wall around it, but I'm concerned that prolonged use of the chimney could affect the insulation of the cable, that's why I chose this product.