Save energy with a high-efficiency water heater
It doesn't take long to recoup the added expense.
Heating water typically accounts for a sizable portion of overall energy consumption. Specifying a high-efficiency water heater helps to lower energy costs. For residential use, choose an electric water heater with an energy factor (EFEnergy factor. Efficiency measure for rating the energy performance of dishwashers, clothes washers, water heaters, and certain other appliances. The higher the energy factor, the greater the efficiency. In some appliances EF reflects the percentage of energy going into the appliance that is turned into useful energy. ) of at least 0.94. Gas units should have a minimum EF of 0.60
Green points
LEED for HomesLeadership in Energy and Environmental Design. LEED for Homes is the residential green building program from the United States Green Building Council (USGBC). While this program is primarily designed for and applicable to new home projects, major gut rehabs can qualify.
: Up to 2 points for a high-efficiency gas water heater, 1 point for a high-efficiency electric water heater (EA 7).
NGBSNational Green Building Standard Based on the NAHB Model Green Home Building Guidelines and passed through ANSI. This standard can be applied to both new homes, remodeling projects, and additions.
/ICC-700: Up to 10 points for a high-efficiency gas water heater, 1 point for electric (703.5.1).
Learn more in the Green Building Encyclopedia
Learn more in the Green Product Guide
