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INTENDED USE

This product is intended for indoor residential and office use only,  

not for industrial or other commercial application. Use only with 

electrical wiring that is in good working order and that meets 

applicable codes and ordinances. This heater must be plugged in  

to a 120V AC, 15 Amp (or larger) circuit. Do not plug anything 

additional into the same circuit. If you have any questions whether 

your wiring is adequate, consult a qualified electrician. Risk of fire, 

overheating, malfunction, property damage, injury or even death  

may result if not adhered to.
Use your heater only with a working smoke detector located in the 

vicinity of your heater.
While using your heater, you should follow the

 IMPORTANT 

INSTRUCTIONS

 listed below. As part of those instructions, we 

have used the word “

WARNING

” to indicate the level of hazard: 

WARNING

 indicates a hazard which, if not avoided, could result in 

injury or death.

IMPORTANT INSTRUCTIONS

When using electrical appliances, basic safety precautions should always 

be followed to reduce the risk of fire, electric shock and injury to persons, 

including the following: 
•  Read all the instructions before using this heater. 
•  This heater is hot when in use. To avoid burns, do not let bare skin 

touch hot surfaces. Use provided handle when moving this heater. Keep 

combustible materials, such as furniture, pillows, bedding, papers, 

clothes and curtains at least 3 feet (0.9 meters) from the front of the 

heater and keep them away from the sides and rear. 

•  Do not use heater unattended. Use of extreme caution is necessary when 

any heater is used by or near children, invalids, disabled persons or pets. 

•  Do not operate the heater with a damaged power cord or after the 

heater malfunctions, has been dropped or damaged in any manner. 

Return heater to authorized service facility for examination, electrical or 

mechanical adjustment or repair.

•  Do not use heater outdoors. 
•  Use your heater only in dry environments. This heater is not intended 

for use in a bathroom, laundry area, or similar locations, or near sinks, 

washing machines, swimming pools or other sources of water. Never 

locate heater where it may fall into a bathtub or other water container.  

Do not use in damp environments such as flooded basements. 

•  Do not place the heater on a small, unlevel, uneven or any surface which 

might allow heater to tip or fall. 

•  For proper operation, heater should be placed on a smooth, 

non-combustible, level surface. Do not place on rugs, carpet, vinyl 

flooring or other plastic surfaces. Not for use outdoors or in wet areas. 

•  This heater is not designed as a primary heat source. 
•  Always plug heaters directly into a wall outlet/receptacle. Never use with 

an extension cord or relocatable power tap (outlet/power strip). Always 

unplug heater when not in use. 

•  Do not run power cord under carpeting. Do not cover cord with throw 

rugs, runners or similar coverings. Arrange cord away from traffic area 

where it will not be tripped over. 

•  To disconnect heater, turn controls off then remove plug from outlet. 
•  Do not insert or allow foreign objects to enter any ventilation or exhaust 

opening as this may cause an electric shock or fire or damage the heater. 

•  To prevent a possible fire, do not block air intakes or exhaust in any 

manner. Do not use on soft surfaces like a bed, where openings may 

become blocked. 

•  A heater has hot and arcing or sparking parts inside. Do not use it in 

areas where gasoline, paint or flammable liquids are used or stored. 

•  Use this heater only as described in this manual. Any other use not 

recommended by the manufacturer may cause fire, electric shock 

or injury to persons or property.

 READ & SAVE THESE 

INSTRUCTIONS

 

WARNING:

 SHOCK HAZARD

Use your heater only in dry environments. This heater is 

not intended for use in a bathroom, laundry area, or similar 

locations, or near sinks, washing machines, swimming pools 

or other sources of water. Never locate heater where it may fall 

into a bathtub or other water receptacle. Do not use in damp 

environments such as flooded basements.

WARNING:

 HOT SURFACES

Do not touch body of heater when in use. This heater is hot when 

in use, to avoid burns, do not let bare skin touch hot surfaces. If 

provided, use handles when moving this heater.

WARNING:

 FIRE HAZARD

Heater has hot and arcing or sparking parts inside. Do not use 

near combustible materials or flammable gases or sources of 

heat.  DO NOT USE in areas where gasoline, paint or flammable 

materials are used or stored. Keep combustible materials such 

as furniture, pillows, bedding, papers, clothes and curtains at 

least 3 feet (0.9 m) from the front of the heater and keep them 

away from the sides and rear. To prevent a possible fire, do not 

block air intakes or exhaust in any manner. Do not use on soft 

surfaces, like a bed, where openings may become blocked. Do 

not place the heater near a bed because objects such as pillows 

or blankets can fall off the bed and be ignited by the heater. 

Do not insert or allow foreign objects to enter any ventilation or 

exhaust opening as this may cause an electric shock, fire, or 

damage the heater.

WARNING:

 ELECTRICAL SHOCK HAZARD

Do not use with damaged cord or plug. Use with adequate 
electrical system that is up to code.

CAUTION:

 

TO PREVENT ELECTRIC SHOCK  

This product has a polarized two prong plug (one blade is 

wider than the other) that must be fully inserted into a matching 

properly grounded outlet. This plug is designed to fit a polarized 

outlet only one way. If the plug does not fit fully into the outlet, 

reverse the plug. If the plug still does not fit, contact a qualified 

electrician. Do not attempt to defeat this safety feature.
Do not operate any heater with a damaged cord or plug  

or after heater malfunctions, has been dropped or damaged 

in any manner.  Do not operate heater with a broken heating 

element or ceramic cone or any visual imperfections. Disconnect 

power before servicing. For repairs covered under warranty, see 

warranty statement. For all other repairs contact Comfort Zone

®

 

Customer Service by telephone or mail for information 

and assistance.

PET OWNERS NOTE:

The health of birds and some small pets are extremely 

sensitive to the fumes given off during the initial use of many 

appliances. Although these fumes are not harmful to humans, it 

is recommended that this heater not be used around birds and 

small pets during its initial use until the manufacturing corrosion 

coatings burn off.

Summary of Contents for CZ650B Series

Page 1: ...gital Thermostat and Timer Two Heat Settings LOW Heat 750 Watts HIGH Heat 1 500 Watts 5 120 BTU Top Mounted Control Panel Power Indicator Light Caution Indicator Light Safety Overheat Protection Safety Tip Over Protection Silent Operation Stay Cool Body with Dent Resistant End Panels 120V AC 60Hz 12 5A ...

Page 2: ...t opening as this may cause an electric shock or fire or damage the heater To prevent a possible fire do not block air intakes or exhaust in any manner Do not use on soft surfaces like a bed where openings may become blocked A heater has hot and arcing or sparking parts inside Do not use it in areas where gasoline paint or flammable liquids are used or stored Use this heater only as described in t...

Page 3: ...e or lower the temperature set point Once the desired temperature is reached press the MODE button once to select the Timer option or twice to exit both options this will return the display to the ambient temperature Alternatively the unit will automatically save and exit after 15 seconds of inactivity returning the display to the ambient temperature After exiting the Temperature Indicator Light w...

Page 4: ...which vary from state to state No informal dispute settlement mechanisms are available This limited warranty is given in lieu of all other warranties Manufactured for World and Main Cranbury LLC 324A Half Acre Rd Cranbury NJ 08512 USA 800 221 6895 www comfortzoneproducts com Rev 05 23 2022 IMPORTANT SAFETY FEATURES The heater is equipped with an automatic overheat protection device located inside ...

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