The TD 500-GSE Heat Cart is compact, completely portable and safe - providing clean dry heat for aircraft, hangars and ground support equipment. It represents the "next generation" in portable heat technology. The TD 500 GSE "flameless" airline heat cart represents more than 14 years of field experience, operating 24/7 in extreme conditions in the oil & gas industry. Therm Dynamics in cooperation with Air Canada developed and tested heaters in the Canadian North for the past several years.