Dyna-Glo 30,000 BTU Blue Flame Vent-Free Thermostatic Garage Heater GBF30DTDG-4 - The Home Depot
Mr. Heater 20000-BTU Wall or Floor-Mount Indoor Liquid Propane Vent-Free Convection Heater in the Gas Space Heaters department at Lowes.com
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 18000 Btu Vent Free Radiant 20# Propane 700 Sq Ft Indoor Outdoor Space Heater For Home, Office, Or Garage, Thermostat W/ Automatic Shutoff : Target