ProLine® Atmospheric Tall Residential Water Heater, 40 gal, Natural Gas, 40 Kbtu/hr, 0.66 Energy Factor
PartAOS40NT
MFG100191156
Description
AO Smith® ProLine® Gas Water Heater, Series: GCR-40, 40000 Btu/hr Heating, Natural Gas, 1/2 in Gas Connection, 40 gal Tank, Piezo Pushbutton Ignition, Atmospheric Vent, 3 in, 4 in Vent, 42 gph at 90 deg F Recovery, Energy Factor: 0.66, 3/4 in Water Connection, 150 psi, Tall or Short: Tall, Ultra Low Nox: No, 20 in Dia x 62 in H
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- Intelligent control logic - The internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response to optimize performance
 - Uses a thermopile to generate the power needed to operates the electronic gas control without requiring an external power source
 - The electronic gas control incorporates an LED status indicator that monitors system operation and service diagnostics
 - Green Choice® gas burner - Patented "Eco-Friendly" design reduces NOx emissions by up to 33% and complies with low- NOx emission requirements of less than 40 ng/J
 - Dynaclean™ diffuser dip tube - Reduces lime and sediment build up and maximizes hot water output, made from long-lasting PEX cross-linked polymer
 - Coregard™ anode rod - Our anode rods have a stainless steel core that extends the life of the anode rod allowing superior tank protection for longer than standard anode rods
 - Pushbutton piezo ignitor - Makes lighting the pilot fast and easy with one-hand pushbutton spark ignition
 - Heat trap nipples Factory installed for faster installation
 - Blue Diamond® glass coating - Provides superior corrosion resistance compared to industry standard glass lining
 - Enhanced-flow brass drain valve - Our residential water heaters have a solid brass, tamper resistant, enhanced-flow, ball type, drain valve
 - Uses a standard female hose fitting that allows for fast and easy draining during maintenance
 - Designed for easy operation, this valve includes an integral screwdriver slot that features a 1/4 turn (open/close) radius, which not only permits full straight-through water flow but also a quick and positive shut off
 - High energy factors - Eco-Friendly Non-CFC foam insulation, external heat traps and specially designed combustion chamber combine to produce a high Energy Factor for maximum savings on operating costs
 - Approved for installation from sea level to 10100 ft elevation
 
The ProLine® 400/401 Series gas water heater is designed to deliver an economical performance that can lower your energy bills and also provide long-lasting value.
| Fuel Type | Natural Gas | 
| Tank Capacity Range | 38 to 40 gal | 
| Ultra Low NOx | No | 
| Heating Capacity | 40 Kbtu/hr | 
| Warranty Years | 6 | 
| Type | Tall | 
| Vent Type | Atmospheric | 
| Blanket (Yes/No) | No | 
| Series | ProLine® | 
| Energy Factor | 0.66 | 
| Tank Capacity | 40 gal | 
| Dimensions | 20 in Dia x 62 in H | 
| Gas Connection | 1/2 in | 
| Ignition Type | Piezo Pushbutton | 
| Pressure Rating | 150 psi | 
| Recovery Rate | 42 gph at 90 deg F | 
| Tall or Short | Tall | 
| Vent Size | 3 in, 4 in | 
| Water Connection | 3/4 in | 
| Brand | AO Smith® | 
| Package Width | 21.13 in | 
| Package Height | 62.31 in | 
| UNSPSC | 40101825 | 
| Alternate Part Number 1 | GCR4000L010S45 | 
| Package Length | 24.13 in | 
| Manufacturer | A. O. Smith | 
| UPC | 671657198121 | 
| Manufacturer Part Number | 100191156 | 
6 Years Limited Tank and Component Parts
Meets UBC|CEC and HUD National Code|Meets the thermal efficiency and standby loss requirements of the US Department of Energy and current edition of ASHRAE/IES 90.1|ANSI Z21.10.1-CSA 4.1|CSA Certified and ASME Specified T and P Relief Valve|Star Design Certified
Commercial and Residential
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AO Smith®ProLine® Atmospheric Tall Residential Water Heater, 40 gal, Natural Gas, 40 Kbtu/hr, 0.66 Energy Factor

