BIS Nova baffle boards

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MustXcape

New Member
Mar 31, 2022
1
Trustno_1
The baffle boards on my BIS Nova wood fireplace are badly eroded and I need to replace them. Rather than paying the exorbitant cost of OEM replacements, I intend on buying ceramic fiberboard and cutting it to fit. I found two candidates on Amazon, one rated at 2600 deg F with a density of 20-24 lb/ft³ and another rated at 2300 deg F with a density of 45 lb/ft³ described as high strength.

https://www.amazon.com/gp/aw/d/B07C4VB8J5/ref=ox_sc_saved_image_1?smid=A3I5AZ4P11SGFM&psc=1

https://www.amazon.com/gp/aw/d/B08FDVHVYN/ref=ox_sc_act_image_1?smid=A1IFQNUCPOQPAB&psc=1

My inclination is to go with the high density fiberboard figuring that the additional weight of the product will hold it in place whereas the less dense product may be more prone to float off. Of course the high-density has a 300 degree lower rating which may be a factor. I have no idea what the density of the original boards are.

What do you think?

Or do you have a better source of baffle board material?
 
I probably would get the higher density board too for better durability. 2300º is well above the average firebox temp of 1000º-1500º.