Tent Gas-Fired Heaters Provide quiet operation with fuel-efficient direct-fired design. Feature a 20-ft. remote start thermostat, totally enclosed flame, airflow safety devices, and enclosed electronics. 12-ft. extendable ducting available for all models. Designed with dependable, electronic spark ignition. Finish provides superior protection against abrasion and corrosion. Deliver safe, dependable heating and air circulation.