Mr Heater Buddy 4-18000 BYU    MH18B - OutdoorQuality Products
Mr. Heater big Buddy has 18000 BTU/HR with the capacity to heat up to 400 square feet of space for up to 220 hours. Dual-Heating System (DHS) combines radiant heat comfort with convection heat airflow for maximum heating efficiency. Multi-position heat settings of 4000 and 9000 and 18000 BTU/HR control comfort level. Built-in oxygen shutoff sensor and tip-over switch ensures indoor safe operation. Certified by CSA International (American Gas Association).
Swivel regulators and single control
Automatic low oxygen shutoff system
Accidental tip-over safety shutoff
Heats up to 400 square feet
Low, medium, and high heat level control knob for steady temperatures