Marley Q-Mark ; Unit heater in polyester powder coated finish is made of heavy gauge die formed steel for long durability. It measures 14 Inch x 7-1/2 Inch x 16 Inch. 1/3-Phase Heater in two-tone style features pull-through air flow design that draws air across heating element for air distribution and cooling operation. Heater employs 12 Ft air throw venturi outlet design and features fan delay that eliminates cold drafts. It features aluminum finned copper clad sheathed steel as heating element. It features automatic reset linear thermal cut-out and capillary type that provides protection over entire area. Heater includes 24 Volts standard transformer and has adjustable discharge louvers to control air flow. 3.7/5.0 kilo-Watts Heater operates at a voltage rating of 208/240 VAC and a current rating of 18/21 Amps. It operates at a frequency rating of 60 Hz and has operating temperature of 45 deg F. Heater can be horizontal/vertical mounted and has enclosed fan motor that offers air flow of about 350 cfm. It is ideal for auxiliary, supplementary/primary heat source in factories, stores, garages, basements, warehouses, public buildings, service stations, stock-rooms, offices and large/exposed areas. Heater is UL and cUL listed. Also known as -Q-Mark MUH0521 Electric Utility Heater-Marley MUH0521 Q-Mark Unit Heater 350 cfm 1/3 Phase 208/240 Volt AC 3.7/5
