2015 Water Heater Regulations

The U.S. Department of Energy (DOE), as part of the National Appliance Energy Conservation Act (NAECA), issued Final Rule energy efficiency mandates in April 2010. This new update, effective April 16, 2015, will require higher Energy Factor (EF) ratings on almost all residential gas, electric, oil and tankless gas water heaters. The 2015 efficiency changes will have an impact on manufacturers, wholesalers installers and customers.

Regulation Standards

Standards apply to U.S. only.

Rheem is Ready to Help You Make the Transition

Our Water Heating Professionals at Rheem have been achieving higher standards for nearly 90 years. So, we are more than prepared to meet new national energy-efficiency requirements with advanced product options and services that help homeowners choose the best energy-compliant water heater for their budget and lifestyle to enjoy for years to come.

Here are the products we already offer that meet the new mandates:

Gas Tank Type

Description Model Number Energy Factor (EF)
Professional Prestige™ High Efficiency Condensing Power Direct Vent (RHE) RHE40S 0.82
Professional Prestige™ High Efficiency Condensing Power Direct Vent (RHE) RHE50 0.82
Professional Classic Plus™ Induced Draft PRO+G29-60N RH70 ID 0.70
Professional Classic Plus™ Powered Damper PRO+G38-40N RH69 PD 0.69
Professional Classic Plus™ Powered Damper PRO+G50-40N RH67 PD 0.67
Professional Classic Plus™ Powered Damper PRO+G50-50N RH67 PD 0.67
Professional Classic Plus™ Powered Damper PRO+G40S-40N RH67 PD 0.67
Professional Classic Plus™ Powered Damper PRO+G50S-40N RH67 PD 0.67
Professional Classic Plus™ Heavy Duty Power Direct Vent PRO+G50-65N RH62 PDV 0.62
Professional Classic Plus™ Ultra Low NOx Powered Damper PRO+G40-36U RH68 0.68
Professional Classic Plus™ Ultra Low NOx Powered Damper PRO+G50-36U RH68 0.68
Professional Classic Plus™ Atmospheric PRO+G40-40N RH62 0.62
Professional Classic Plus™ Atmospheric PRO+G50-40N RH62 0.62
Professional Classic Plus™ Atmospheric PRO+G40S-40N RH62 0.62
Professional Classic™ Atmospheric PROG40-40N RH62 0.62
Professional Classic™ Atmospheric PROG50-40N RH62 0.62
Professional Classic™ Atmospheric PROG40S-40N RH62 0.62
Professional Classic™ Power Vent PROG40-40N RH67 PV 0.67
Professional Classic™ Power Vent PROG50-42N RH67 PV 0.67
Professional Classic™ Power Vent PROG40S-36N RH67 PV 0.67
Professional Classic™ Power Vent PROG50S-36N RH67 PV 0.67
Professional Classic™ Power Direct Vent PROG40-40N RH67 PDV 0.67
Professional Classic™ Power Direct Vent PROG50-40N RH67 PDV 0.67
Professional Classic™ Ultra Low NOx PROG40-38U RH62 0.62
Professional Classic™ Ultra Low NOx PROG50-36U RH62 0.62
Professional Classic™ Ultra Low NOx Power Vent PROG40-36U RH67 PV 0.67
Professional Classic™ Ultra Low NOx Power Vent PROG50-38U RH67 PV 0.67

Gas Tankless

Description Model Number Energy Factor (EF)
Prestige™ High Efficiency Condensing Tankless RTGH-95DVLN 0.94
Prestige™ High Efficiency Condensing Tankless RTGH-95XLN 0.94
Prestige™ High Efficiency Condensing Tankless RTGH-84DVLN 0.92
Prestige™ High Efficiency Condensing Tankless RTGH-84XLN 0.92
Mid-Efficiency Tankless RTG-95DVLN 0.82
Mid-Efficiency Tankless RTG-95XLN 0.82
Mid-Efficiency Tankless RTG-84DVLN 0.82
Mid-Efficiency Tankless RTG-84XLN 0.82
Mid-Efficiency Tankless RTG-64DVLN 0.82
Mid-Efficiency Tankless RTG-64XLN 0.82

Electric Tank Type

Description Model Number Energy Factor (EF)
Professional Prestige™ Hybrid Heat Pump HB50RH 2.45
Professional Classic Plus™ High Efficiency PRO+E40 2 RH95 EC1 0.95
Professional Classic Plus™ High Efficiency PRO+E50 2 RH95 EC1 0.95

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