Installation Guide
Page 14 
 FRAMING CONSTRUCTION AND INSTALLATION 
FRAMING CONSTRUCTION AND INSTALLATION 
Except as noted, the 51ZC can be installed almost anywhere you desire. There are, however, a few clearance and 
framing restrictions that must be followed. See Page 6, Figure 5, and Page 7, Figure 6, also Figure 12 to make sure 
that these clearance restrictions are met. It is much wiser to place your 51ZC correctly at the start of the installation 
than to be forced to relocate it after much of the work is done. 
You must ensure that the floor is of adequate strength to accept the load of this unit. If inadequate, the floor will 
require additional support, such as bracing. NOTE: A wooden base constructed of plywood or 2" x 4" boards is 
required in order to get proper clearance above the extended hearth (millboard, rock, stone, etc.). (See Page 16.)  
1.  Thoroughly clean the area where the unit will be placed. Remove any carpeting/padding from the area where 
the 51ZC will be installed.   
2. Layout the location on the floor for ZC cabinet.  
 NOTE: Maintain 1 1/2" clearance between the rear of the cabinet and combustible material.   
   CAUTION 
THE STRUCTURAL INTEGRITY OF THE MOBILE HOME FLOOR, WALL, AND 
CEILING/ROOF MUST BEMAINTAINED.  
(MOVE OPENING AND/OR REPOSITION HEATER LOCATION IF NECESSARY).  
3. Layout for hearth extension preparation and removal of carpet and padding . 
 The hole for the out side air kit may be located anywhere under the 51ZC Cabinet. A 4 1/4" diameter hole  
 with a 2 1/8” radius from center line must be cut through floor. 4" Outside air duct kit # PP70075-01 is to be 
 installed. 4" flex or solid pipe and outside air pipe termination cap ( not provided). Slide the outside air duct  
 down through the hole in the floor, and secure out side air duct with 4 screws (not provided).  
 (See Page 15, Figure 13.) 
 NOTE: The maximum length of the out side air pipe is determined by having to reach the same atmospheric  
 pressure with the out side air inlet as the exhaust. 
 NOTE: Combustion air inlet ducts shall not terminate in attic spaces  
4.  Place the sheet safety shield provided with unit 1 1/2" under the front of the cabinet. It must extend out under 
the floor protector. Drop a plumb line, locate and mark point on ceiling directly over center of 51ZC chimney  
  adapter. After locating the center of hole, install firestop spacer, per chimney manufacturer’s instructions.  
 26" 
INTERIOR LOCATION 
CORNER 
LOCATION 
26" 
FIGURE 12 










