Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 40 Gal.

The Rheem Professional Classic Tall Atmospheric Residential Natural Gas Water Heater 38,000 BTU, 40 Gal. is a Rheem Professional Classic atmospheric natural gas storage water heater. It is intended for residential installations with proper natural-draft venting and a standard gas-fired tank replacement layout.

Atmospheric models differ from power vent units because they rely on natural draft instead of a blower. The 38,000 BTU burner input, gallon capacity, venting path, and combustion air requirements should be confirmed before installation.

Product Features:

• 40-Gallon Tall Storage Tank: Tall atmospheric gas tank configuration for residential hot water storage.
• 38,000 BTU Natural Gas Burner: Product title identifies 38,000 BTU burner input for recovery sizing.
• Atmospheric Draft Venting: Uses natural draft venting rather than a powered vent blower.
• Residential Chimney/Vent Use: Requires an approved vertical vent or chimney path suitable for atmospheric appliances.
• Professional Classic Gas Line: Part of Rheem’s standard residential gas storage water heater lineup.
• No Blower Electrical Load: Atmospheric model does not use the same powered vent fan assembly as power vent units.
• T&P Relief Valve Safety: Residential tank water heater installations require temperature-and-pressure relief protection.

Warranty

This product includes a manufacturer’s limited warranty. Verify voltage, phase, element wattage, breaker sizing, plumbing connections, installation location, and local code requirements before installation.