Rinnai SENSEI® RX Series Condensing Tankless Water Heaters
Experience industry‑leading efficiency, unlimited hot water, and smart technology with the Rinnai SENSEI® RX Series — the next generation of condensing tankless water heaters built for modern homes and demanding lifestyles.
Premium Tankless Water Heating from Rinnai
Smart Sense™ Adaptive Gas Valve
Automatically adjusts to gas type (natural or propane) for efficient, reliable combustion without extra parts.
Versa‑Vent™ Installation Flexibility
Outdoor vent cap adapts to any SENSEI® RX model, making outdoor installations easier and more versatile.
Smart Connect™ App Control
Connect your tankless water heater to your smartphone or tablet via Bluetooth® using the Rinnai Central™ app for simplified setup, monitoring, and registration.
Quick Flush™ Maintenance
Streamlines flushing and descaling for easier preventive maintenance — helping your system stay efficient longer.
These advanced features combine for a smarter, more efficient tankless experience that reduces energy waste and delivers hot water on demand.
Premium Tankless Water Heating from Rinnai
The Rinnai SENSEI® RX Series sets a new standard in tankless water heating with an outstanding Uniform Energy Factor (UEF) up to 0.98, providing energy savings and continuous hot water without the standby losses of conventional tank systems.
Smart‑Sense™ Adaptive Gas Valve technology ensures optimal combustion with either natural gas or propane, no conversion kit needed, while the Versa‑Vent™ cap offers installation flexibility both indoors and outdoors.
Built for Comfort, Built for Convenience
Whether you’re renovating, building new, or upgrading an aging water heater, the SENSEI RX Series is engineered to deliver exceptional comfort and performance:
- Continuous hot water — never run out, even during peak use.
- High‑efficiency performance with up to 0.98 UEF.
- Indoor or outdoor installation with Versa‑Vent compatibility.
- Compact, space‑saving design perfect for homes of all sizes.
Models You Can Choose From
The SENSEI RX Series includes multiple high‑efficiency options to suit different homes and needs:
Every model supports natural gas and propane, and can be installed indoors or outdoors with proper venting.
Professional Installation & Support from Duncklee Inc.
At Duncklee Inc., we’re proud to be your trusted experts for Rinnai tankless water heater installation, service, and maintenance. Our certified technicians will:
- Evaluate your home’s hot water demand
- Recommend the ideal SENSEI RX model
- Install your unit safely and efficiently
- Provide ongoing support for peak performance
We offer professional guidance on system selection, venting options, and smart controls, giving you peace of mind from start to finish.
Why Choose a Tankless Water Heater?
Tankless water heaters like the Rinnai SENSEI RX Series offer several benefits over traditional tank systems:
- Energy savings – Heat water only when needed
- Longer lifespan – Typically outlasts water heaters with tanks
- Lower operating costs
- Smaller footprint and installation flexibility
- Reduced risk of leaks or water damage
Tankless systems also deliver consistent hot water temperature and can support high‑demand households more effectively.
