Noritz’s NR83-DVC is the newest addition to the whole-home residential tankless water heater line. The new-concentric-vented water heater saves energy (Energy Factor: 0.82) and protects the environment by heating water strictly on demand. The water heater has inputs ranging from 18,000 to 180,000 Btu per hour and flow rates from 0.5 to 8.3 gpm. The water heater is designed specifically for one-bathroom homes in the Northeast, the Midwest and Canada, as well as two-bath residences in the Southeast and Southwest. Circle 44