The Greentherm 9000 Series of condensing gas water heaters offers nine models for residential or commercial applications, adding new features for easy installation, operation and maintenance. With an energy factor of 0.99 and thermal eEfficiency of 100 percent, the series achieves temperature stability of ± 2° F through the active bypass. Controls output capacity by combining the burner’s pulsating mode with the bypass valve to achieve the desired outlet temperature through its operating range of 9,000 to 199,000 BTU. Its attractive metal cabinet features sleek, rounded corners. The 9900i SE model has a unique, stylish glass front and integrated Wi-Fi control. Each model offers simple conversion to LPG using the included manifold injector kit. Installation permits up to 60 feet of venting with 2-inch pipe, or 280 feet of venting with 3-inch pipe; may be used with 1/2-inch or 3/4-inch gas line. Bosch Thermotechnology Corp.