Amazon.com: Mr. Heater 18000 BTU Vent Free Radiant Propane Indoor and Outdoor Wall or Floor Heater with Thermostat for Spaces up to 500 Square Feet, (2 Pack) : Home & Kitchen
MH9BX Portable Buddy® Heater | Mr. Heater®
18,000 BTU Portable LP Gas Heater - 3 Power Settings | Thermomate
Mr. Heater 20,000 BTU Vent-Free Liquid Propane Blue Flame Heater at Tractor Supply Co.