I have a Marco WBF that was installed when my house was built. The back refractory panel burned out and I am having problems trying to find a replacement. the panel is 16"x 21 1/8" x 1 1/2" (approx) thick. I was sold a panel that supposedly would work, it doesn't. The panel I was sold is approx 3/4" - 1" thick and the people said it would work, it doesn't. I was told Hargrove makes a replacement, cut to fit panel. I have to know if it is thick enough before trying to order it. I have to admit, I am gunshy as I have a panel that cost $200.00 that he company will NOT take back and will not work in my fireplace.
The Hargrove panel is 1" thick. As these are cast they can vary some some well.