Experience Powerful Efficiency with Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater

Bring instant, reliable, and energy-efficient hot water to your home with the Rinnai RE180IN Indoor Tankless Water Heater. Engineered with a compact copper heat exchanger and a sleek silver finish, this advanced model delivers 8.5 gallons per minute (GPM) of continuous hot water — ideal for large households and high-demand applications.

Designed to replace the Rinnai V75IN, this non-condensing tankless unit offers premium performance, easy installation, and long-term reliability. Its LED display, programmable service reminders, and optional leak detection system make maintenance effortless. Enjoy endless comfort and lower utility bills with this modern water heating solution from Rinnai, a global leader in hot water innovation.

Key Features:

• High Performance: Provides up to 8.5 GPM for multiple fixtures simultaneously.
• Efficient Heating: Powered by 180,000 BTUs with a 0.82 Uniform Energy Factor.
• Smart Functionality: Built-in LED screen with programmable service reminders.
• Compact Design: Clean internal layout and easy open/close access for service.
• Optional Safety Add-ons: Supports leak detection kit, freeze protection, and mounting bracket (sold separately).
• Durable Build: Copper heat exchanger for reliable and long-lasting operation.
• Eco-Friendly: Designed to save energy and reduce water waste.
  

What’s Included

• Rinnai RE Series 8.5 GPM Indoor Tankless Water Heater (Model RE180IN)
• Safety handle and seating bracket
• User manual and installation guide

(Isolation Valve MIVK-T-LW and optional accessories sold separately.)

Specifications:

Care & Maintenance Instructions

• Schedule annual professional maintenance to ensure peak performance.
• Periodically flush the heat exchanger to prevent mineral buildup.
• Clean air filters and inspect venting for obstructions.
• Use only Rinnai-approved accessories and parts.
• Protect the unit from freezing conditions using Rinnai’s optional freeze protection kit