As the trusted leader in water heaters, Rheem® has revolutionized its tankless gas portfolio to offer a complete range of tankless solutions. You’ll enjoy the comfort and convenience of continuous hot water while saving energy and money from the brand you trust.

• PVC Vent runs up to 70' (2"), 150' (3")
• Easy set up with full text digital display and no dip-switches
• Field gas convertible from natural gas to LP - conversion kit included
• Allows flex venting through existing B-vent up to 50'
• 1/2" Gas line compatibility up to 24 ft (subject to local code)
• Approved for installations in Manufactured Home (Mobile Home) environments
• Stainless steel Primary and Secondary heat exchangers provide increased efficiency and durability
• Rheem® Exclusive! Hot-start
programming™ ensures the unit is in a ready state between back-to-back usage, avoiding any cold water bursts
• Built-in Recirculation pump for no wait continuous hot water at the tap (SR models)
• Built-in EcoNet® Wi-Fi technology for direct control from your device (optional for S models)




Rheem® RTGH Series Super High Efficiency Condensing Tankless Gas Water Heaters
• PVC Vent runs up to 60' (2"), 150' (3")
• Enhanced design is up to 20% smaller and lighter making one-person installs even easier
• Industry Best! 1/2" side to side clearance allows you to safely work in spaces the competition can't
• 1/2" Gas line compatibility up to 24 ft (subject to local code)



Rheem® RTG Series High Efficiency Non-Condensing Tankless Gas Water Heaters
• Industry Leading! 43' vent run capability
• Enhanced design up to 10% smaller to fit in even more places than before
• Enhanced design up to 22% lighter making one-person installs even easier
• Industry Best! 1/2" side to side clearance allows you to safely work in spaces the competition can't
• 1/2" Gas line compatibility (subject to local code)
• Universal Venting Compatibility with UBBINK, Metal Fab, and Rainbow venting for easier tankless to tankless replacements
• Rheem® Exclusive! Hot-start Programming™ ensures the unit is in a ready state between back-to-back usage, minimizing any cold water bursts
• Built-in EcoNet® Wi-Fi technology for direct control from your device (on select models)
• LeakGuard® – All-inclusive leak detection and prevention system that detects any leak that comes from the unit (on select indoor with Wi-Fi models)



©2005-2026 Efficient Technology Sales, LLC | All Rights Reserved