Patent ID: 6941677

Claim:
A portable air heating system for heating an enclosed area without venting exhaust fumes into the enclosed area, so as to prevent the introduction of dangerous gases into the enclosed area, the portable air heating system comprising: a fuel burner configured to produce heat as fuel is burned; an air transfer assembly comprising an air intake conduit, said air intake conduit having one end capable of drawing in air to be heated and delivered to the enclosed area from a location remote from the exhaust gases produced by said fuel burner, said end of said air intake conduit being movable relative to said fuel burner so as to prevent the introduction of any exhaust gases into the enclosed area, said air transfer assembly being configured to release the air at a desired location of the enclosed area; and at least one heat transfer member fluidly connected to said air transfer assembly, each of said at least one heat transfer member being configured to transfer the heat produced by said fuel burner to the air flowing through said at least one heat transfer member, each of said at least one heat transfer member and said air transfer assembly isolating the air being heated and delivered to the enclosed area from the exhaust gases produced by said fuel burner.