American Water 100361499 40 Gal Tall Natural Gas Water Heater

Product Description

The AMERICAN WATER 100361499 is a 40-gallon tall natural gas water heater designed for residential plumbing systems. Standing 61-3/4 inches tall with a 20-inch diameter, this unit is built for installations where vertical space is available and higher first-hour delivery capacity is needed. Natural gas models deliver fast recovery rates compared to electric equivalents, making this a common choice in high-demand households. Licensed plumbers and plumbing contractors are the typical installers for this class of water heater.

This 40-gallon tall natural gas water heater fits standard residential applications where the unit is located in a utility room, basement, or garage with adequate gas supply, flue venting, and cold water inlet access. The tall configuration suits spaces with limited floor area but sufficient ceiling clearance. Its footprint of 20 inches in diameter makes it compatible with utility closets and mechanical rooms sized for standard residential tank water heaters.

Key Features

• 40-gallon tank capacity for consistent hot water supply in residential settings
• Natural gas fuel type for faster recovery compared to standard electric models
• Tall form factor at 61-3/4 inches height accommodates high-clearance installations
• 20-inch diameter footprint fits standard mechanical room and utility closet placements
• Designed for direct replacement in existing natural gas water heater installations

Compatibility

Designed as an OEM-style replacement for residential natural gas tall water heater installations requiring a 40-gallon capacity unit with a 20-inch diameter footprint.

Installation Notes

Installation must be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the gas supply and cold water inlet before disconnecting the existing unit. Proper flue venting to the exterior is required for all natural gas water heaters — never connect to a blocked or undersized vent. Verify the gas supply line size and pressure meet manufacturer requirements before commissioning.

Technical Specifications

• Fuel Type: Natural Gas
• Tank Capacity: 40 gallons
• Configuration: Tall
• Height: 61-3/4 inches
• Diameter: 20 inches
• UPC: 035505165923

Standard Information

• Brand: AMERICAN WATER
• Manufacturer Part Number: 100361499