Desa Tech 409090 is a portable heater suitable for well-ventilated areas and designed to provide warmth in various settings. With an output rating of 60,000 BTU/hr, it efficiently circulates warm air. The heater operates on kerosene or No. 1 fuel oil, offering a convenient heating solution without the use of gasoline.

Safety features are prioritized, including a grounding requirement for proper operation and a safety control that shuts off power in case of any malfunctions or fire. The heater also comes equipped with a fan guard to prevent accidental contact with the hot air outlet.

Maintenance is made simple with the removable intake air filter, which can be cleaned with mild detergent and water after every 500 hours of operation or more often in dusty environments. The fan can also be cleaned periodically to ensure optimal airflow and prevent faulty operation.