Rinnai SE Series 6.5 GPM Indoor Condensing Tankless Water Heater – Natural Gas

Upgrade your home’s hot water system with the Rinnai SE Series 6.5 GPM Indoor Condensing Tankless Water Heater. Designed for efficiency, reliability, and convenience, this natural gas-powered unit delivers endless hot water for your household. With Wi-Fi readiness and remote diagnostics, you can monitor and control your water heater from anywhere. Perfect for homes with 2–3 bathrooms, it combines advanced technology with an energy-saving design to meet all your hot water needs.

Key Features:

• Wi-Fi Ready for remote monitoring and control
• Supports remote diagnostics and maintenance for hassle-free service
• ENERGY STAR® Certified for maximum energy efficiency
• 2x longer service life compared to standard water heaters
• Hot water capacity from 0.26 GPM to 6.5 GPM
• Powerful 130,000 BTUs for consistent heating
• Serves 2–3 bathrooms simultaneously
• Easy installation with flexible venting options
• Sleek, compact design fits indoor spaces
• Compatible with other Rinnai Tankless models as an accessory
  

What’s Included

• Rinnai SE Series 6.5 GPM Indoor Condensing Tankless Water Heater (Natural Gas)
• Installation and venting accessories (as per model requirements)
• User manual and warranty documentation
  

Specifications:

Specification	Details
Model Number	RUCS65IN
Fuel Type	Natural Gas
Hot Water Capacity	0.26 GPM – 6.5 GPM
BTU Output	130,000 BTUs
Uniform Energy Factor (UEF)	0.85
Indoor/Outdoor Use	Indoor
Vent Type	Condensing
Color/Finish	White
Dimensions (H x W x D)	27" x 18.5" x 10.5"
Bathrooms Supported	2–3
Warranty	Manufacturer’s standard

Care & Maintenance Instructions

• Regularly inspect the unit and venting for blockages or leaks
• Flush the water heater annually to remove scale buildup and maintain efficiency
• Check gas and water connections periodically for safety
• Follow manufacturer’s guidelines for installation, maintenance, and warranty compliance