Experience endless hot water on demand with the Rinnai 8.5 GPM Indoor 180K BTU Non Condensing Tankless Water Heater (351-RE180IN). This compact unit is designed for small to medium homes and remodels, delivering reliable heat exactly when you need it.

With its energy-smart design, it heats only what's needed, helping you save energy and lower bills, while its robust flow can handle multiple fixtures at once—showering and running a dishwasher without the drama.

Key Features & Design

• Powerful on-demand performance: Delivers between 10,400 and 180,000 BTUs, giving you the power you need without waste.
• Indoor use with flexible venting: Designed for indoor installation with flexible venting options, great for year-round comfort.
• Wi-Fi capable (module sold separately): Control and monitor your water heater remotely, plus LED alerts keep you in the know.
• Direct-vent system: Dual pipes for safe and efficient air intake and exhaust.
• Low NOx and cleaner air: Meets ultra-low NOx standards for better indoor and outdoor air quality.
• Quiet, low-maintenance operation: Runs quietly in the background with fewer parts to maintain than traditional water heaters.
• Space-saving design: Compact enough for small spaces, ideal during remodels or when upgrading from older tanks.
• Long-lasting warranty: 15-year limited warranty on the heat exchanger, 5 years on parts, and 1 year on labor.
• Energy savings: Heats only when needed, helping your wallet and the environment.

Shipping and service details: FREE USA SHIPPING. Your Rinnai 8.5 GPM Tankless Water Heater will be packed and shipped within 1-3 business days and delivered to you between 5-10 business days.