Sunpak patio heaters keep the evening chill away, delivering fast, efficient heat for your backyard patio area. Enjoy the benefits of easy operation with electronic ignition and safety with automatic relight with a flame sensor. The Sunpak S25 304-grade stainless steel patio heater (S25 S-NAT) delivers 25,000 BTUs of commercial-quality gas heating power to cover a 10-foot by 10-foot area. Includes all mounting hardware and a 120 volt-to-24 volt transformer. Sunpak emphasizes the importance of a warm welcome to your outdoor patio with their line of efficient, effective patio heaters. Warm-up to entertain outdoors with a Sunpak patio heater.