Amazon.com: GASLAND MHA18B Propane Heater, 18,000 BTU Warm Area up to 450 sq. ft, Portable LP Gas Heater for Garages, Workshops and Construction Sites, Ultra Quiet Propane Radiant heater with LP Regulator
Dyna-Glo 18000-BTU Wall-Mount Indoor Natural Gas or Liquid Propane Vent-Free Infrared Heater in the Gas Space Heaters department at Lowes.com
Mr. Heater 18000-BTU Wall or Floor-Mount Indoor Liquid Propane Vent-Free Radiant Heater in the Gas Space Heaters department at Lowes.com
Mr Heater Tundra Forced Air Electric Garage Heater; 18,000 BTU F236130 - Free Shipping
Dyna-Glo Grab N Go XL Portable Heater 18,000 BTU Propane (LP) Recreational Radiant Heater - Walmart.com
Amazon.com: thermomate Propane Radiant Heater, 18,000 BTU Portable LP Gas Heater with 3 Power Settings, Propane Heater with Gas Regulator and Hose for Garages Construction Sites, Heating Area Up to 450 Sq.
Mr. Heater 18,000 BTU Radiant Propane Big Buddy Portable Heater for Massachusetts and Canada MH18B - The Home Depot
Amazon.com: Dyna-Glo RA18LPDG 18,000 BTU Cabinet Heater, Black : Home & Kitchen