Infrared Technology works by radiating heat to warm objects first - Similar to the sun,Up to 12,000 BTU's/hr heats up to 300 sq. ft.
LOW-HI variable control knob offers the most customizable heat settings,No electricity required allows for reliable back-up heating incase of an emergency situation
Separately sold optional fan (WHF100) improves the amount of square footage the heat reaches in a quiet, yet powerful way.
Separately sold optional base legs (WBL100) allows for stable floor mounting