The all season EnerG+ HEA-21531 Electric Infrared Outdoor Heater ushers in a new standard in outdoor heating. Focusing the warmth precisely where you want it， this versatile infrared heater is very efficient using radiant heat. Completely safe to use outdoors in all weather conditions， safe to use in enclosed areas， and hardly affected by wind you will have instant warmth year-round. Can be used used both inside or outside. The power adjustable 750 or 1500 Watt infrared carbon heater is a type of infrared heating device that uses a hydrocarbon filament instead of a tungsten filament as a heating element. Such a heating element has a high thermal conductivity and， accordingly， has a higher heat transfer. The aluminum and stainless steel construction of the Energ+ infrared heater is designed to withstand rain， humidity， heat and snow. The handy remote control lets you manage the 2 heater bulbs at a distance. Pre-heat the zone before you go outside， or control the elements from a distant seating area without the need to leave your comfortable spot. This remote offers full control of the heater including turning it on and off. The provided articulated wall mount brackets allow the heat to be where you want it. The IPX4 rating allows you to leave this unit outside all season long and not worry about dust and water filtering in. If you accidentally spray it while watering flowers or cleaning there will be no harm done to the heater.