Patent ID: 7607425

Claim:
A heating device for containing a fire, said heating device comprising: a) a canister defining a hollow cavity, said canister having an open end and a closed end; b) a base corresponding to said canister, said base configured to mate with said open end of said canister so as to detachably close said open end; c) a perforated lower burner positioned on said base, said perforated lower burner defining a hollow core; and d) a perforated upper burner defining a hollow core, said perforated upper burner removably nestable within said hollow core of said perforated lower burner; wherein said perforated upper burner is movable between a first collapsed position and a second operative position, said perforated upper burner disposed within said hollow core of said perforated lower burner when in said first collapsed position, and said perforated upper burner being supported on said perforated lower burner when in said second operative position; and wherein when said perforated upper burner is in said first collapsed position, said canister may mate with said base to extinguish the fire.