The Rheem High-Efficiency Condensing Indoor 9.0 GPM Tankless Gas Water Heater (RTGH-90DVLN-3) delivers on-demand hot water with minimal wait, saving time, energy, and water throughout your home. Featuring exclusive Hot Start Programming, it keeps the unit ready between back-to-back uses, preventing cold water bursts. Rheem’s Overheat Film Wrap safeguards the heat exchanger for added protection and peace of mind. Its compact, wall-mounted design with industry-leading installation clearance allows for easy installation in small spaces, making it ideal for modern homes where space is at a premium.
Continuous Hot Water – Provides sufficient hot water for multiple applications simultaneously, including showers, dishwashers, and laundry
Hot Start Programming™ – Keeps the water heater ready to avoid cold water bursts
Energy Efficient – Operates only when needed, reducing energy consumption
Water Saving – Saves up to 1,100 gallons of water per year with water-saving settings
Leak Protection – LeakGuard™ detects and prevents internal leaks to protect your home
Overheat Protection – Overheat Film Wrap safeguards the heat exchanger
Compact Wall-Mount Design – Ideal for small spaces, saving valuable floor space
Adjustable Thermostat – Provides precise temperature control
Product Type: Tankless Water Heater
Fuel Source: Natural Gas
Tankless Capacity: 9 gallons
Tank/Tub Capacity: 9 gallons
Maximum Temperature: 140°F
Minimum Temperature: 62°F
Default Temperature: 120°F
Minimum Flow Rate: 0.26 gallons per minute
Maximum Input: 180,000 BTU
Minimum Input: 11,000 BTU
Maximum Flow Rate: 9 GPM
Voltage: 120 Volt
Energy Factor: 0.93
Altitude Rating: Up to 7,800 ft
Finish: Silver
Material: Metal
Minimum Water Pressure: 14 PSI
Portable: No
Condensing Technology: Yes
Mounting / Installation Type: Wall Mount, Hard-Wire (Professional installation required)
Certifications: UPC, AHRI
Overall Dimensions (H × W × D): 23.7" × 17.7" × 9.8"
Overall Weight: 51.3 lb
Part Number: RRTGH90DVLN3701173