This tank top heater provides up to 42,000 BTUs of infrared heat. With variable heat output (30K/35/42K), this versatile tank top heater is a great low-cost solution for extra heat during any of our outdoor activities. The compact and lightweight design makes it ideal for easy storage and transport, and the automatic safety control valve shuts off gas flow immediately if the flame goes out. This heater is the perfect solution when you need instant heat.