Mr. Heater's indoor safe propane Buddy heaters have become America's most popular portable heaters. The 4,000 to 18,000 BTU Big Buddy is the perfect solution for heating enclosed spaces like large tents up to 450 sq.ft. Its tip-over safety shut-off switch and low oxygen safety shut-off sensor will bring you peace of mind, whether at the campsite, workshop, job site, or patio. Features a single control start knob with three heat settings, and two swivel regulator that connect directly to 1 lb. propane cylinders. To light, simply push and rotate the knob to pilot and the piezo igniter will take care of the rest, no matches required. With quiet, efficient, and odor free operation, you?ll enjoy years of comfortable indoor safe heat.

Radiant propane heater in a portable, CSA certified indoor safe design.High-medium-low heat settings: 18,000-9,000-4,000 BTUs.Heats up to 450 sq.ft.Tip-over safety shut-off switch and low oxygen safety shut-off sensor.Approximate 2.8 hour run time on high and 11 hour on low with two 1 lb. cylinders.Piezo igniter - no electricity or matches required.Two swivel regulators connect directly to 1 lb. propane cylinders (sold separately).Adapt to a remote 20 lb. propane cylinder with optional hose and filter.Ideal for tents, campsites, porches, tailgating, hunting, ice fishing, garages, workshops, job sites, and power outages.