9.38 GPM Condensing Residential Natural Gas Tankless Water Heater

Endless Hot Water. Lower Energy Bills. Smarter Comfort. The ThermoMate RTC68iN Condensing Tankless Water Heater delivers powerful whole-house performance with industry-leading 0.91 UEF efficiency. Designed for North American homes, this high-output 163,000 BTU natural gas unit provides continuous, on-demand hot water while reducing annual energy costs. High Efficiency 0.91 UEF – Save More Every Year With advanced dual heat exchanger technology , this condensing system captures and reuses exhaust heat that traditional tank heaters waste. Stainless steel condensing heat exchanger Oxygen-free copper primary heat exchanger Up to 17% energy savings vs. standard models Lower gas consumption and reduced carbon footprint More efficiency. More savings. Greener home. True Whole-House Performance – Up to 9.38 GPM Built for busy households. Supports up to 3 simultaneous showers 2 GPM per shower at 105°F (62°F inlet temp) Up to 9.38 GPM in warmer climates (77°F+ inlet temp) Runs showers, washing machines, and kitchen fixtures at the same time No storage tank. No waiting. No cold water interruptions. Stable Temperature – No Fluctuations Featuring an intelligent water mixing valve system , RTC68iN: Maintains consistent outlet temperature Eliminates hot-cold fluctuations Automatically adjusts flow during multi-fixture use Delivers smooth and precise heating performance Perfect for families who demand reliable comfort. CSA Certified Safety – Built for North America This CSA-certified natural gas unit includes 8 built-in protections: Flame-out protection Boil-dry protection Freeze protection (auto activates at 41°F) Overheating protection Over-temperature lock Pipe blockage protection Excess air pressure protection High-temperature safety control Sealed combustion design improves efficiency while significantly reducing operating noise. PVC Venting Compatible – Lower Installation Cost Unlike traditional tankless units requiring expensive stainless steel venting (300°F+ exhaust), this