Product details:

Direct Spark Ignition Combo Water Heater (16-7/32" x 16-7/32" x 20-1/2") by Suburban. Not only can you take advantage of campground or generator power to heat your water, you can conveniently control the water heater gas ignition and power the 1440W Incoloy electric element from the convenience of your RV. A 1440W Incoloy electric element provides a recovery rate of 6.1 gallons per hour. for a FAST RECOVERY rate of 16.2 gallons per hour, both gas and electric can be used simultaneously.