Installation Guide
6
WARRANTY
For more effective and safer operation and to 
prolong the life of the heater, read the Owner’s 
Guide and follow the instructions. Failure to 
properly maintain the heater will void any warranty 
and may cause the heater to function improperly. 
LIMITED TWO YEAR  WARRANTY:  Cadet will 
repair or replace any Cadet Com-Pak (CS) or 
Com-Pak Twin (CST) heater found to be defective 
within two years after the date of purchase.
These warranties do not apply:
1. Damage occurs to the product through improper 
installation or incorrect supply voltage;
2. Damage occurs to the product through 
improper maintenance, misuse, abuse, accident, 
or alteration;
3. The use of unauthorized accessories or unau-
thorized components constitutes an alteration and 
voids all warranties. Refer to Cadet website or call 
customer service at 855.CADET.US for list of 
authorized accessories and components. 
4. CADET’S WARRANTY IS LIMITED TO 
REPAIR OR REPLACEMENT.
5. IN THE EVENT CADET ELECTS TO REPLACE 
ANY PART OF YOUR CADET PRODUCT, THE 
REPLACEMENT PARTS ARE SUBJECT TO 
THE SAME WARRANTIES AS THE PRODUCT. 
THE INSTALLATION OF REPLACEMENT PARTS 
DOES NOT MODIFY OR EXTEND THE UN-
DERLYING WARRANTIES. REPLACEMENT OR 
REPAIR OF ANY CADET PRODUCT OR PART 
DOES NOT CREATE ANY NEW WARRANTIES.
If you believe your Cadet product is defective, 
please contact Cadet during the warranty period, 
for instructions on how to have the repair or 
replacement processed.
Parts and Service
Visit  cadetheat.com/parts-service  for information 
on where to obtain parts and service.
INSTALLATION INSTRUCTIONS
To register your product, visit cadetheat.com/product-registration
1.  Route the electrical supply wire from the circuit breaker to the wall thermostat. At the wall can 
of heater #1, attach two sets of electrical supply wires with two cable clamp connectors (not 
included), leaving a minimum of 6 inches wire lead. One set of electrical supply wire goes to the 
wall thermostat and the other set goes to heater #2 (See Figure 7).
2. There are two supply ground wires in the wall can of heater #1. You’ll need to add a small piece of 
copper wire (not included) to make the 3-wire connection with the ground screw (See Figure 7).
3. For heater #1, connect each heater wire to one of the supply wires going to the thermostat, and 
to one of the supply wires going to the heater #2. Both wires from heater #1 must have a 3-wire 
connection.
MULTIPLE HEATERS WITH ONE THERMOSTAT (MODEL CS ONLY)
4. For heater #2, make the connections in the wall can as shown in Figure 7 above. 
5. Turn power back on at the main disconnect panel. 
6. Proceed to OPERATING INSTRUCTIONS.
Figure 7
More than one heater can be wired in parallel on the same circuit breaker (be sure to check national 
and local codes for safety requirements). Additional electrical supply wire and cable clamp connectors 
are required, and you’ll need to use a wall thermostat. When wiring multiple heaters to one 
thermostat, the heaters must be in the same room and be spaced a minimum of three feet apart.
The maximum amperage load you can put on one circuit breaker is limited to either 80% of the circuit 
breaker capacity, or the maximum amperage rating of the thermostat, whichever is lower. 
heater #2
heater #1
This set of wires 
goes to the wall 
thermostat
additional ground wire is used here to make the 3-wire connection
This set of wires goes 
to heater #2
back of heater 
assembly
wall 
can
back of heater 
assembly
wall can








