Specifications

9

NBST27 Unvented Gas Log Set



To install the heater with a wooden mantel, shelf or other
combustible projection above, first measure the heat resis-
tant material shown in then refer to Table B.
FP2365
heat resist w/hood
8” or
More
of Heat
Resistant
Material
Hood
Heater in Fire-
place or Firebox
FP2365
Figure 6 -
Measure Heat Resistant
Material for Mantel
 
  
  
12” or more Hood not required. Observe profile (side
elevations) shown in .
8” to less than 12” Install hood and observer profiles shown
in;  extend heat resistant
material to at least 12” and observe
profiles shown in .
Less than 8” Extend heat resistant material to at least
8”, install hood and observe profiles
shown in ;  extend heat
resistant material to at least 12” and
observe profiles shown in .


FP2366
mantel clear no hood
12”
Min.
28”
10” or Less
Heat Resistant
Material
Heater in
Fireplace
or Firebox
FP2366

The bottom of the mantel
may project from the wall a
maximum of 10” at a mini-
mum of 28” above the fire-
box.
Figure 7 -
Minimum Mantel Clearance
with No Hood
256O”
12”
13”
24”
FP2367
mantel clearance with hood
Heat Resistant
Material
Heater in
Fireplace
or Firebox
Hood
FP2367

A mantel may project from the wall a maximum of 2Z\x” at a
minimum of 13” above the opening, and a maximum of 12”
at a minimum of 24” above the opening.
Figure 8 -
Minimum Mantel
Clearance with Hood