R53i 2007 Model Tankless Heater

Advanced Tankless Water Heating & Style

• White Powder Coat Enamel Finish

Tankless Technology

• Continuous Hot Water on Demand Delivered at up to 5.3 GPM
• Whole House Water Heating Solution
• MC-91 Digital Temperature Controller =/-2° F included
• Direct Electronic Ignition - No Pilot Light
• On Board Diagnostics And Safety Monitoring
• Interior Sealed Combustion Unit - Does Not Use Interior Combustion Air
• Battery Backup Possible for Operation in Power Interruptions

Tankless Energy Efficiency

• Up to .84 EF Providing Significant Energy Cost Savings
• On When You Need It, Off When You Don't... No Standby Loss!

Specification Table

• Minimum / Maximum Gas Rate (Input Btu/Hr.) 15,000 - 180,000
• Dimensions: 9"D x 14"W x 24" H
• Weight: 48 lbs.
• 5.3 GPM Maximum Hot Water Capacity at 35° Rise
• 4.2 GPM Maximum Hot Water Capacity at 75° Rise
• NoX Emissions Less Than 40Ng/J
• Temperature Range 98 - 140° F
• Altitudes Up To 10,500 Feet Without Kits or Additional Parts 

• 10 Year Limited Warranty On The Heat Exchanger
• 5 Year Warranty On All Parts