Amazon.com: Mr. Heater 18000 BTU Vent Free Radiant Propane 700 Sq Ft Indoor Outdoor Space Heater for Home, Camp, or Garage with Thermostat and Auto Shutoff, White : Everything Else
Mr. Heater 30000 BTU Vent Free Propane Gas Indoor Heater, (2 Pack) - Walmart.com
Dyna-Glo 30000-BTU Wall-Mount Indoor Natural Gas or Liquid Propane Vent-Free Convection Heater in the Gas Space Heaters department at Lowes.com
Mr. Heater 30000-BTU Wall or Floor-Mount Indoor Liquid Propane Vent-Free Convection Heater in the Gas Space Heaters department at Lowes.com