New Buck Corporation 21 User Manual

(Use a Listed Direct or Positive Connect) 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 2                             POSITIONING 

 
3.  Slide the unit out of the fireplace far enough to work behind the trim panel reference lines. 
4.  Mount the side trim panels. (See Figure 3) 

a.  Position the trim panel on the reference line. 
b.  Drill mounting holes in center of trim panels mounting brackets to allow for adjustment in and out if 

necessary. 

c.  Mount the trim panel using the self-tapping screws provided. 

5.  Place top panel back on reference mark.  Take top trim panel mounting bracket supplied with unit. Position 

bracket so it overlaps rear lip of top trim panel.  Drill mounting holes in top of stove using holes in bracket as 
guide.  Tighten down screws. 

6.  Now, follow the installation procedures in the listed direct connect or positive connect kit you are using and 

install the heater and connect kit in the fireplace. 

7.  Slide the unit back into the fireplace. Check to be sure that the trim panels are properly positioned and lie flat 

against the front of the fireplace. If one or more of the panels is out of position, slide the unit out and reset by 
loosening the mounting screws and repositioning in the slot. 

8.  Reinstall the top trim panel by sliding the rear lip of the top trim panel underneath the front lip of the mounting 

bracket already secured to top of unit. 
NOTE: Mount the top trim panel so that it sits in front of the top of the side trim panels. 

9.  Obtain the brass trim kit provided with unit and  slip over the top and sides of trim panels.  (Top ends of brass 

may need to be trimmed to fit.)  

 
 
 

POSITIONING THE HEATER 
 
NOTE: If the three suggested installations have been 
chosen, certain steps must be followed when installing 
the heater into a masonry fireplace. 
 
When positioning  the heater, the following conditions 
MUST be met! (See Figure 2) 
 
1.  The front of the damper opening must be positioned 

BEHIND the rear edge of the lintel to ensure proper 
draft. (See Figure 2) 

2.  Center the heater in the fireplace opening. 
 
 
 
MOUNTING THE TRIM PANELS 

After the unit is positioned, as shown in (Figure 2), mark 
the mounting position of the trim panels as follows: 
1.  Set the top (long) trim panel in place on top of the 

unit. The panel should be flat against the outside 
face of the fireplace, and standing vertically. Mark 
along the lower edge of the trim panel with a pencil 
to make a reference line for mounting. 

2.  Set the side trim panels in place behind and against 

the intake covers, again, flat against the face of the 
fireplace. Mark down the edge of the trim panel to 
make a vertical reference line. 

FIGURE  3              MOUNTING TRIM  PANELS 

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