Installation Guide
Page 20 
4.  Remove the access cover door located at the bottom front of the room heater. There are two (2) phil-
lips head screws which must be removed, one (1) in each top corner of the access cover door. 
5.  Next, under the hearth on the left and right sides there are 3/8" head screws which attaches the room 
heater unit to a bracket (Front Stove Stop) on the ZC cabinet. These two (2) screws must be re-
moved at this time. 
NOTE: Disconnect the power cord from the receptacle inside the ZC cabinet before removing the 
Model 51,T-51, 74, T-74 room heater. Do not damage the power cord while pulling the room heater out.  
REMOVING MODELS 51, T-51, 74, AND T-74  
 ROOM HEATER FROM THE 
 MODEL 51ZC CABINET 
At some point you may need to remove your Model 51, T-51, 74,T-74 room heater from the Model 
51ZC cabinet, if so follow these instruction exactly. Remember if the room heater has been in use allow 
time for cooling. 
1.  First remove the seven (7) 5/16" screws from the Top Front Trim. You may need a standard screw-
driver to lift one of the outer corners of the Top Front Trim before being able to remove it. 
 (See Page 22, Figure 18.) 
1.  Remove the three (3) 5/16" screws from the Right Side Trim. This will enable you to access the 
power cord and receptacle, to disconnect the power supply to the room heater. 
 (See Page 22 ,Figure 18.) 
1.  Located between the room heater and the ZC cabinet is the Flue Connector. On each side of the Flue 
Connector there is a threaded rod which is attached to the top of the ZC cabinet and has two (2) 
9/16" nuts with a bracket between them that is attached to the Flue Connector. You will first need to 
run the top nuts up the threaded rod about 1 1/4" (Do this on both the right and left side’s). Next run 
TOP ADJUSTMENT 
NUT 
BOTTOM ADJUST-
MENT NUT 
FLUE 
CONNEC-
TOR 
SLIP 
COLLAR 
BRACKETS 
FLUE 
COLLAR 
BRACKETS 
(FRONT STOVE STOPS) 
POWER 
CORD 
RECEPTA-
CLE 
FIGURE 16 
AREA BEHIND ACCESS COVER 
DOOR 










