Sunpak Patio Heaters specialize in unvented infrared heaters for any outdoor installation. Sunpak heaters are outdoor rated heaters available for use with natural or propane gas. The heaters can be either wall or ceiling mounted. Sunpak heaters do need a continuous supply of fresh air and proper ventilation of combustion gases to operate safely. Rest assured, all units are equipped with spark ignition and 100% shutoff for safety, economy and convenience. Sunpak heaters come in a sleek slim design with a 0-30 degree angle mounting option allowing efficiency, large coverage, and flexibility.