Pacific Blue Mechanical » Rheem CRTGH-S11i IKONIC® Super High Efficiency Condensing Tankless Gas Water Heater
Rheem CRTGH-S11i IKONIC S Series Condensing Tankless Gas Water Heater is a premium high-efficiency tankless water heater engineered for continuous hot water delivery, advanced energy savings, and modern residential performance. Part of Rheem’s advanced IKONIC® (S Series) lineup, this condensing tankless system combines intelligent technology, industry-leading efficiency, and compact installation flexibility.
Designed for residential homes with higher hot water demands, the CRTGH-S11i delivers up to 11.2 GPM while maintaining a remarkable 0.96 Uniform Energy Factor (UEF). With ENERGY STAR® certification, low NOx emissions, built-in Wi-Fi capability, and Rheem-exclusive comfort and safety technologies, this unit is designed for homeowners seeking premium hot water performance with lower operating costs.
Its compact design, retrofit-friendly installation options, and dual fuel compatibility make it an ideal solution for both new installations and existing water heater upgrades.
Rheem CRTGH-S11i IKONIC S Series Condensing Tankless Gas Water Heater is engineered for exceptional residential hot water efficiency and performance.
With a 0.96 UEF rating and ENERGY STAR® certification, this model can help homeowners reduce annual energy costs by up to 36% compared to less efficient traditional tank water heaters. Its advanced condensing technology extracts more usable heat from combustion gases, improving efficiency while lowering overall energy consumption.
The system delivers up to 11.2 gallons per minute (GPM), making it ideal for larger homes or households using multiple hot water fixtures simultaneously.
Rheem’s exclusive Hot Start Programming™ technology helps eliminate cold water bursts between back-to-back hot water usage. This feature keeps the system ready for immediate hot water delivery, improving comfort and reducing temperature fluctuations.
The built-in Overheat Film Wrap safety system automatically shuts down the unit if overheating conditions occur, adding an additional layer of system protection and operational safety.
Combined with low NOx combustion technology, the CRTGH-S11i delivers environmentally responsible performance without sacrificing reliability or comfort.
Rheem CRTGH-S11i IKONIC S Series Condensing Tankless Gas Water Heater is designed for simplified installation and retrofit flexibility.
Key installation advantages include:
The included conversion kit also allows field conversion between natural gas and propane installations.
This IKONIC® condensing tankless water heater is built with durable stainless steel primary and secondary heat exchangers designed to maximize efficiency and provide long-term reliability.
Its high-efficiency internal design helps improve durability, resist corrosion, and maintain strong long-term hot water performance in demanding residential applications.
Pacific Blue Mechanical provides professional supply, installation, repair, maintenance, and replacement services for the Rheem CRTGH-S11i IKONIC S Series Condensing Tankless Gas Water Heater throughout Metro Vancouver and surrounding areas.
If requested, we can source and supply this Rheem IKONIC® tankless water heater directly and professionally complete the installation process, including gas line setup, venting installation, condensate drainage, water line connections, recirculation integration if required, Wi-Fi setup assistance, and complete system commissioning.
Our licensed technicians also provide tankless water heater maintenance and repair services including descaling, ignition troubleshooting, flow sensor replacement, heat exchanger diagnostics, gas valve repairs, error code troubleshooting, annual servicing, and complete tankless water heater replacement solutions.
If your current tankless water heater is failing to maintain temperature, producing inconsistent hot water, displaying error codes, leaking, or nearing the end of its lifespan, our team can help determine the best repair or replacement solution for your home.
Yes. The Rheem CRTGH-S11i IKONIC S Series Condensing Tankless Gas Water Heater is a high-efficiency condensing tankless gas water heater.
The unit is compatible with both natural gas and propane installations.
Yes. This model is ENERGY STAR® certified and features a high-efficiency 0.96 UEF rating.
Hot Start Programming™ is Rheem’s exclusive technology designed to eliminate cold water bursts between consecutive hot water uses.
Yes. The CRTGH-S11i includes built-in Wi-Fi capability for smart monitoring and connectivity features.
Yes. Pacific Blue Mechanical can professionally supply, install, repair, maintain, and replace the Rheem CRTGH-S11i IKONIC® tankless water heater.
