The Rheem Performance Gal. Natural Gas Tall Water Heater comes with a , BTU hour environmentally friendly low NOx burner that provides ample water for households with people. The push.Safety Instructions Installation Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Customer Service Time Temperature Relationship in Scalds.An automatic thermostat to keep water at your desired temperature. The GE Gal. Tall BTU Natural Gas Water Heater in Home Depot siteists to know the specifications of the product. It is energy efficient and convenient to maintain..Richmond water heater is manufactured by Rheem. Founded in , Rheem only started manufacturing water heaters and air furnaces during the s and s.