The Endless Summer Patio Heater 92000 produces up to 11,000 BTU's of heat and is totally self contained. Move the heater to where you want the heat! It uses a 1 pound portable LP tank (not included), which is housed conveniently in the base of the heater. The Endless Summer 9200 Premium 6-Sided Table Top Patio Heater also comes with an adapter to connect to a larger 20 pound LP tank (same tank as used with a BBQ). It is ideal for patios or any open-air setting. The radiant heat produced by the 92000 will warm a 10 inch diameter area. It has a Safety Tilt Shut-Off System which will automatically shut off the gas supply if tilted more than 18 degrees, not found on most heaters.