[. . . ] This owner's manual will provide you with valuable information necessary for the proper care and maintenance of your new product. Please take a few moments to thoroughly read the instructions and familiarize yourself with all the operational aspects of your new heater. [. . . ] Avoid the use of an extension cord because the extension cord may overheat and cause a risk of fire. To avoid fire or shock hazard, plug the unit directly into a 120 V AC electrical outlet. To disconnect heater, turn controls to OFF, then remove plug from outlet. Always unplug the unit before moving or cleaning, or whenever the heater is not in use. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons. The use of attachments not recommended or sold by unauthorized dealers may cause hazards. WARNING: To reduce the risk of fire or electric shock, DO NOT use this unit with any solid-state speed control device. DO NOT attempt to repair or adjust any electrical or mechanical functions on this unit. This appliance is not intended for use by persons (including children) with reduced physical. Sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. [. . . ] If the heater will not be used for a long period of time, store it in a cool, dry location when not in use. If the heater will not operate, please check the following before seeking repair of service: Check if the power cord is plugged into an electrical outlet, if not, plug in. [. . . ]