FireplaceXtrordinair ProBuilder 42 Linear Instruction Manual page 57

Installation 57
(for qualified installers only)
3. Remove the burner. It is held in place with 8 screws (1/4" nutdriver).
4. Remove the air shutter retainer as shown below. It is held in place with 2 screws (1/4" nutdriver).
© Travis Industries 6/3/19 - 1453 PB 42 & 54 MV/GSB2 Install