- 12-year limited tank & parts warranty, 1-year labor warranty
- 40,000 BTU input for faster recovery
- 80-gallon first hour rating
- Electronic gas control valve provides precise temperature control and operational status
- Self-cleaning PEX dip tube helps maintain efficiency and reduce maintenance
- Glass-lined tank with dual heavy-duty anode rods to protect against corrosion
- Environmentally-Friendly Non-CFC foam insulation
- Piezo igniter allows for easy one-hand pilot ignition without matches
- Factory-installed PEX polymer lined heat trap nipples
- Factory-installed temperature & pressure (T&P) relief valve
The 12-40-NACT 40-Gallon Tall Natural Gas Water Heater delivers ideal hot water for households with 4 people when sized appropriately. The 40,000 BTU gas burner delivers 80 gallons in the first hour.
An electronic gas valve provides precise temperature control for optimum hot water delivery. The self-diagnostic electronic gas control monitors and reports on system operational status via an LED status indicator.
Residential Series Atmospheric Vent Lighting the Pilot
Residential Series Atmospheric Vent Draft Test
Residential Series Atmospheric Vent No Hot Water
Residential Series Atmospheric Vent Status Code 1 Flash
Residential Series Atmospheric Vent Status Code 2 Flash
Residential Series Atmospheric Vent Status Code 4 Flash
Residential Series Atmospheric Vent Status Code 5 Flash
Residential Series Atmospheric Vent Status Code 7 Flash
Residential Series Atmospheric Vent Status Code 8 Flash
Residential Series Atmospheric Vent Status Code Light Continuous