Osburn Matrix Installation and Operation Manual
34 ______________________________________________________________________________
CONSTRUCTIONS AND CLEARANCES FACTORS FOR APPLIANCES HEAT SHIELDS
WHICH ARE MORE THAN 45
o
OFF THE VERTICAL
HEAT SHIELD CONSTRUCTIONS
Minimum air gap
dimensions (mm)
Clearances factor
Single layer of continuous material
12
0.80
Single layer of continuous material
25
0.60
NOTES:
1-
Masonry may be used as a heat shield material.
2-
Where heat shields are used to reduce appliance clearance dimensions, additional flue
shielding may also be required. Refer to AS/NZS 2918:2001.
