The Professional Classic Series Power Vent water heater features an induced draft with the Guardian FVIR System for enhanced safety and efficiency. With flexible venting options up to 100 feet, it accommodates various installation needs. Available in 40 and 50 gallon tall and short capacities, it includes an integrated self-diagnostic system control, thermostat, and gas valve for reliable performance and ease of use. This model is designed to provide consistent hot water while ensuring safety and efficiency in your home.