Today’s homes demand more hot water than ever before, and the 96% efficient power direct vent gas water heaters offer unprecedented levels of performance to meet the need. The fully condensing design is so advanced, it can deliver continuous hot water for shower after shower…a constant flow of over 4 gpm at a 40° rise. ENERGY STAR® qualified 6-year limited Tank warranty, 6-year parts warranty for Residential application Helical Internal Heat Exchanger - Spiral heat exchanger keeps hot combustion gases in the tank longer lengthening the heat transfer cycle Power Vent design uses inexpensive PVC, CPVC, ABS or polypropylene pipe for intake and exhaust and can be vented vertically thru-the-roof or horizontally thru-the-wall Venting diameter 2" or 3" or with an optional concentric vent kit Condensing design - equipped with condensate drain tee Side-mounted hot and cold recirculating taps allows water heaters to be installed as part of combination space heating/water heating applications Advanced Electronic Control - large LCD display, precise temperature control, advanced diagnostics, iCOMM™ compatible and can be monitored from remote locations. Heavy-duty Anodic protection provides even protection against corrosion Commercial grade glass lining protects all interior tank surfaces including inside and outside of the helical heat exchanger Top Fired Ultra-Low NOx gas burner complies with SCAQMD Rule 1146.2 and other Air Quality Management Districts with similar requirements for NOx emissions of less than 10 ng/j Factory installed CSA Certified and ASME Rated Temperature & Pressure (T&P) relief valve