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W415-0616 / B / 02.18.08
21
INSTALLATION INTO A COMBUSTIBLE
BUILT-IN ENCLOSURE
Figure 24a
MINIMUM FRAMING DIMENSIONS
When installing the insert as a "Built-in" heater, it is important to
maintain the "Clearances to Combustibles" as illustrated in Figure
24a-b.
A non-combustible heart must cover the fl ooring underneath, as
well as, a minimum of six inches in front and to both sides of the
heater.
NOTE: The stand-offs located on the back of the insert must not
be removed when installing the insert into a built-in combustible
enclosure.
1. Install fl oor protection.
2. Frame structure maintaining minimum clearances. Locate and
frame openings for both the exhaust and outside air. Outside air is
mandatory for "Enclosure" installations.
3. Refer to the vent manufacturer's installation instructions and to
"General Venting" section. Connect the vent.
4. Install fl ashing. See "NPI40 Finishing - Flashing Installation"
section.
5. Consideration must be taken during installation that removal of
the insert is necessary for inspection and annual maintenance.
Install the vent cap.
Figure 24b