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Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Installation Manual • 2628-980 Rev. C • 8/20
50
C.
Non-combustible Mantel and Wall
Projections for use with Simon Fronts
Only decorative barrier fronts certified for use with this
appliance model may be used. Contact your dealer for a
list of decorative fronts that may be used. The finishing
material thicknesses allowed are noted below.
FLUSH WITH FIREPLACE OPENING (TOP OF HOOD)
30 in. minimum
to ceiling
18 in.
Figure 10.4 Non-Combustible Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
Non-Combustible Mantel Legs or Wall Projections -
Use with Simon Fronts
Figure 10.3 Minimum Vertical and Maximum Horizontal
Dimensions for Non-Combustible Mantels
TOP OF
APPLIANCE
DRYWALL
FIREPLACE OPENING
18 in.
See Dimension B on
Appliance Dimension
Diagram.
Non-Combustible Mantels - Use with Simon Fronts
D.
Non-combustible Mantel and Wall
Projections for use with Demi / Tres
Fronts
FLUSH WITH FIREPLACE OPENING (TOP OF HOOD)
30 in. minimum
to ceiling
6 in.
Figure 10.6 Non-Combustible Mantel Leg or Wall Projections
(Acceptable on both sides of opening)
Non-Combustible Mantel Legs or Wall Projections -
Use with Demi / Tres Fronts
Figure 10.5 Minimum Vertical and Maximum Horizontal
Dimensions for Non-Combustible Mantels
TOP OF
APPLIANCE
DRYWALL
FIREPLACE OPENING
See Dimension B on
Appliance Dimension
Diagram.
6 in.
Non-Combustible Mantels - Use with Demi / Tres
Fronts
**
*
* Note:
When using a DEMI or TRES decorative barrier
front a 1/2 in. clearance must be maintained from the
fireplace opening to allow room for decorative barrier
front removal / install.
** Note:
When using a DEMI or TRES decorative
barrier front a 1/4 in. clearance must be maintained on
both sides of the fireplace opening to allow room for
decorative barrier front removal / install.