Rinnai SE Series 6.5 GPM Outdoor Condensing Tankless Water Heater – Natural Gas (RUS65EN)

Upgrade your home’s hot water performance with the Rinnai SE Series 6.5 GPM Outdoor Condensing Tankless Water Heater (RUS65EN)—engineered for efficiency, durability, and continuous comfort. Designed for outdoor installation, this ENERGY STAR® certified unit delivers endless hot water while reducing energy costs through advanced condensing technology.

Perfect for small to mid-size homes, the SE Series reliably supports 2–3 bathrooms simultaneously, ensuring consistent water temperature even during peak demand. Its Wi-Fi compatibility offers full remote monitoring, system control, and diagnostics, giving you total convenience at your fingertips. Compact, long-lasting, and built for performance, this tankless solution is an ideal upgrade for modern households.

Key Features:

• Endless Hot Water: Supplies up to 6.5 GPM, ideal for 2–3 bathrooms.
• Wi-Fi Ready: Optional accessory allows remote monitoring and temperature control.
• Advanced Remote Diagnostics: Helps prevent downtime and simplifies maintenance.
• ENERGY STAR® Certified: High-efficiency condensing system reduces energy consumption.
• 2X Longer Service Life: Built with premium components for extended durability.
• Outdoor Installation Ready: No venting system required; compact design saves space.
• Flexible Compatibility: Wi-Fi module works with multiple Rinnai tankless models.
• High Heating Power: 130,000 BTUs with a hot water flow range of 0.26 to 6.5 GPM.
• Reliable Performance: Uniform Energy Factor (UEF) of 0.86 for optimized efficiency.

What’s Included

• Rinnai SE Series RUS65EN Outdoor Tankless Water Heater
• Installation manual
• Outdoor mounting hardware
• Safety & operation documentation

(Wi-Fi module sold separately)

Specifications

Care & Maintenance Instructions

To maximize performance and extend the life of your tankless water heater:

• Flush the system annually to remove scale and mineral buildup.
• Inspect the venting, connections, and exterior for debris or corrosion.
• Check filters and inlet screens every 6–12 months.
• Use only qualified technicians for diagnostics or servicing.
• Keep the unit clear of obstructions to maintain proper airflow.
• Enable Wi-Fi monitoring for early detection of service needs.