After some online research I've decided to use a cement based backer board instead of plasterboard for the wall behind my woodburner, for increased fire protection.
I had assumed that hardiebacker was the only game in town but the different BMs I've phoned have offered me 'multi pro' or 'aquapanel' instead.
Is there any difference in the fire rating of these boards? And is there any other material that might be better for the job?
Thanks