The BBCN3 100T75 4NV commercial gas water heat meets California Air Quality Management District Requirements of NOx emissions of less than 14 ng/j. This model is equipped with a pre-wired, factory-mounted blower. Fully Automatic Controls with Safety Shutoff- Accurate, dependable control system requires no electric connections. Heavy Gauge Steel Jacket- Finished with baked enamel over bonderized undercoat. Easy-To-Install- Completely factory-assembled. Only gas, water and vent connections need to be made. All connections are located in front and top of heater for ease of installation/service. (Price subject to change without notice. Check stock before order)