Professional Classic Atmospheric Residential Tall 40-Gallon 38k BTU Natural Gas Water Heater

Delivering More Hot Water for Lower Costs.

Rheem's Professional Classic Atmospheric gas-fired water heaters are engineered to deliver more hot water at a low operating cost, saving on monthly fuel bills. This 40-gallon tall natural gas water heater offers 38,000 BTU/h and has an eco-friendly burner and a low NOx design and 3/4" connections. The heater also features an air/fuel shut-off device, a protective control system that disables the heater in the presence of flammable vapor accumulation.

The Professional Classic water heater is easy to light, has an premium-grade anode rod that provides long-lasting tank protection for years of dependable use, fights sediment buildup with the patented EverKleen system, and comes with temperature and pressure relief valves. The Rheemglas tank lining resists corrosion and prolongs tank life. Plus, it's certified for use up to 5,999 ft. above sea level.

• Water capacity: 40 gallons
• Maximum heating capacity: 38,000 BTU/h
• Energy efficiency: 0.58 UEF
• FHR: 64 gallons
• Recovery: 38.4 GPH at a 90 degrees F rise
• Exclusive air/fuel shut-off device
• Maintenance free: no filter to clean
• Protective control system that disables the heater in the presence of flammable vapor accumulation
• Meets 40 ng/J NOx requirements
• Premium-grade anode rod provides long-lasting tank protection
• Easy to light: no matches required
• EverKleen patented system fights sediment build-up
• Enhanced flow brass drain valve
• Temperature and pressure relief valve included
• Low-lead compliant