Monessen Hearth HWB700HB Installation, Operation And Maintenance Manual page 21

O C
UTSIDE OMBUSTION
N : The use of outside air for combustion is optional unless required by building codes. It is only necessary
OTE
to supply outside combustion air to one side of the fireplace. Use the model AK4 combustion air kit.
F 21
IGURE
INSULATION RING
INSERT SHORTEST SIDE
OF THE TUBE THROUGH
THE FIREPLACE OUTER
WRAP TO PROPERLY
SEAL AGAINST FIREBOX
WALL AND GASKET.
DUCT EXTENDED
TO MISS JOIST
TO OUTSIDE WALL
INSTALLATION ABOVE BASEMENT INSTALLATION ABOVE BASEMENT
OR CRAWL SPACE OR CRAWL SPACE
A P
IR
SECURING OUTSIDE AIR STARTING COLLAR TO FIREPLACE
LONGER LENGTH OF THE TUBE
TO OUTSIDE.
STEP 1: SECURE OUTSIDE AIR STARTING
COLLAR TO LEFT SIDE OF FIREPLACE WITH
FOUR SHEET METAL SCREWS PROVIDED.
NOTE: THE STARTING COLLAR EXTENDS
THROUGH THE OUTER FIREPLACE JACKET
AND WILL SEAL AGAINST THE FIREBOX
WALL WHEN SECURED AS INDICATED.
SECOND FLOOR
FIRESTOP SPACER
& R
RECAUTIONS
STEP 2: SECURE OUTSIDE
DUCT TO STARTING COLLAR
WITH DUCT CLAMP OR SCREWS.
TERMINATION CAP
INLET GRILLE
IN SOFFIT
8' MAX.
(OVERHANG)
CONCRETE SLAB INSTALLATION
(OPTIONAL OUTSIDE AIR RUNS)
ECOMMENDATIONS
FIREPLACE OUTER WRAP FIREPLACE OUTER WRAP
AK4 COMBUSTION AK4 COMBUSTION
AIR KIT (SHORTEST AIR KIT (SHORTEST
TOWARD FIREBOX) TOWARD FIREBOX)
AK4 MOUNTING PLATE AK4 MOUNTING PLATE
FIREBOX INSULATION SEAL FIREBOX INSULATION SEAL
FIRESTOP SPACER
CAUTION: DO NOT TAKE
COMBUSTION AIR FROM
ATTIC SPACE OR GARAGE.
53D9036. Rev 1 03/03
20