A.O. Smith Water Products Co has introduced 75- and 100-gallon induced-draft Super-Size gas water heaters that can double the output of models typically installed in residential applications. The 75-gallon/80,000 btu model delivers 142 gallons at peak demand, and the 100-gallon/100,000 btu Super-Size model provides 178 gallons. www.hotwater.com A.O. Smith Water Products Co.