The CV-23KH Portable Convection Kerosene Heater (23,500 BTU) is Safe and Easy to use and Economical to operate. It is great alternative heating source and excellent emergency heating source in events of power failure – no electricity is required It provides efficient zone heating: up to 1,000 sq.ft. It features Automatic Safety Shut Off, the Push Button Start (no matches or electricity required), Protective Safety Gaurd Grills and our quality construction is backed by a 2 Year Limited Manufacturer’s Warranty. Bi-lingual (English and Spanish) Package and Manuals are included. This Heater is suitable for use in large rooms, rooms with cathedral ceilings, poorly insulated buildings, garages and other hard to heat spaces.