This a 3 pack of heaters to help fight back against the winter chill and be warm， cozy， and comfortable all season long with the safety， reliability， and performance of the Mr. Heater 20，000 BTU Blue Flame Natural Gas Space Heater. An ideal gas heating solution， this natural gas space heater is perfect for indoor or outdoor use and can take the chill out of any space up to 500 square feet. Use it as an outdoor heater or garage heater with the power of up to 20，000 BTUs per hour. You can mount this heater to a wall or set it up on the floor with the included legs and mounting hardware. Start-up is easy with the battery-powered electric ignition， plus youll have total climate control over your space with the built-in thermostat. This heater also features low oxygen automatic shutoff for safety and uses blue flame for a clean burn and even convection heating. Bring on the heat with a new ally this winter， the Mr. Heater 20，000 BTU Blue Flame Natural Gas Space Heater.