Experience endless hot water and exceptional energy efficiency with the Rinnai RE Series 5.3 GPM Indoor Tankless Water Heater – Natural Gas. Designed for modern homes, this tankless water heater offers precise temperature control, a sleek compact design, and innovative safety features to deliver reliable comfort. With a programmable service reminder and optional freeze protection, it ensures peace of mind while keeping your energy bills low. Ideal for indoor installations, the RE Series combines powerful performance with advanced technology for a seamless hot water experience.

Key Features:

• Clean Internal Layout: Streamlined design for easy maintenance and long-lasting performance.
• LED Display Screen: Simple interface for temperature and status monitoring.
• Safety Handle & Seating Bracket: Enhances installation safety and convenience.
• Easy Open/Close Access: Quick access to internal components for service.
• Programmable Service Reminders: Keeps your system operating at peak efficiency.
• Compact Copper Heat Exchanger: Durable and energy-efficient.
• Optional Leak Detection Kit: Adds extra protection against leaks.
• Optional Freeze Protection: Ensures operation in cold climates.
• Optional Mounting Bracket: Flexible installation options (sold separately).
• Hot Water Capacity: 0.26 GPM to 5.3 GPM for consistent flow.
• High Output: 140,000 BTU rating for reliable performance.
  

What’s Included

• Rinnai RE Series 5.3 GPM Indoor Tankless Water Heater (NG)
• User Manual & Installation Guide

  Note: Isolation Valve MIVK-T-LW and optional mounting bracket are sold separately.

Specification

Care & Maintenance Instructions

• Perform routine inspection and cleaning of inlet filters and venting system.
• Flush the heat exchanger annually to prevent scale buildup.
• Follow manufacturer’s guidelines for professional servicing.
• Ensure proper ventilation and clearances as per installation instructions.
• Use only compatible parts for replacement or accessory installation.