Operating Guide

15
Loosen this screw.
Then, with your screwdriver still contacting the screw, slide/rotate the cylinder towards the NG (Natural
Gas) side until it cannot slide any further.
Once done, you will tighten the screw on the cylinder, then seal the air shutter cover again.
For more information please visit our website www.thermablaster.com. You can contact us at
877-670-8428 or via email [e-mail].
Minimum Firebox Dimensions
Model
A- Front Width
B- Length
C- Rear Width
D- Height
GLDF24M-VF
28”
16”
26”
24”