A.O Smith 40-Gallon Tall Natural Gas Water Heater (18" Diameter) - GCB-40 SIDE T&P VALVE

A.O Smith 40-Gallon Tall Natural Gas Water Heater (18" Diameter) - GCB-40 SIDE T&P VALVE

Efficient and Durable Hot Water Solution for Your Home

Upgrade your home’s hot water system with the A.O. Smith ProMax 40-Gallon Tall Natural Gas Water Heater. Designed to meet the needs of households with efficient and reliable performance, this water heater ensures you have a continuous supply of hot water whenever you need it.

Advanced Sediment Reduction and Leak Protection

Featuring the DynaClean Diffuser System, this water heater reduces sediment buildup, extending the life of your tank. The Blue Diamond Tank Lining provides superior protection against leaks, ensuring long-term durability.

Enhanced Performance and Easy Troubleshooting

Equipped with an enhanced Honeywell gas valve, this model includes LED diagnostics for easy troubleshooting and improved performance. The resettable FVIR thermal switch quickly and easily brings the heater back online, minimizing downtime.

Long-Lasting Anode Rod and Safety Features

The CoreGuard Anode Rod, an industry-leading anode technology, extends the useful life of the water heater. Additionally, the full-flow tamper-resistant brass drain valve ensures safety and reliability.

Features

• Hot Water : Ideal for households needing a continuous hot water supply

• Sediment Reduction: DynaClean Diffuser System reduces sediment buildup, extending tank life

• Leak Protection: Blue Diamond Tank Lining for superior protection against leaks

• Gas Valve: Enhanced Honeywell gas valve with LED diagnostics for easy troubleshooting

• Safety Features: Resettable FVIR thermal switch for quick and easy reset

• Anode Rod: CoreGuard Anode Rod for extended useful life

• Drain Valve: Full-flow tamper-resistant brass drain valve for added safety

• Design: Tall design with 18" diameter and 61.75" height to vent connection for space-saving installation

• Energy Efficiency: 0.65 uniform energy factor, meeting 2015 NAECA efficiency standards

• BTU Rating: 40,000 BTU for efficient performance

• Convenient Connections: Top water connections and side T&P valve

Specifications

Warranty

6-Year Limited Warranty

What Our Experts Think

The A.O. Smith 40-Gallon Tall Natural Gas Water Heater (18" Diameter) offers reliable performance and energy efficiency for your home. Here's why it's a top choice:

• Reliable Hot Water Supply: With a 40-gallon capacity, it ensures ample hot water for medium-sized households.
• Efficient Heating: Natural gas heating provides fast recovery and consistent temperature control.
• Durability: Crafted with high-quality materials, built to last and resist corrosion.
• Compact Design: The 18” diameter is perfect for tight spaces, making it easy to install in various home layouts.
• Energy-Efficient: Designed to meet high-efficiency standards, helping you save on energy bills.
• Side T&P Valve: Convenient installation with side-mounted temperature and pressure relief valve for safety.

This model provides excellent value, durability, and performance for homes looking for a trusted water heater.

Q&A

Q: What is the capacity of this water heater?
A: The A.O. Smith GCB-40 has a 40-gallon capacity, ideal for medium-sized households.

Q: Is it energy-efficient?
A: Yes, it meets high-efficiency standards, helping reduce energy consumption and lower bills.

Q: Can this water heater be installed in small spaces?
A: Yes, its 18" diameter design makes it perfect for tight installations.

Q: Does it include a temperature and pressure relief valve?
A: Yes, it comes with a side-mounted T&P valve for safe operation.

Q: What type of gas does it use?
A: This model uses natural gas for fast and efficient water heating.

Maintenance Tips 

• Annual Inspection: Check for any leaks or signs of corrosion on the tank and pipes.
• Flush the Tank: Drain and flush the tank yearly to remove sediment buildup, improving efficiency and lifespan.
• Test the T&P Valve: Periodically test the temperature and pressure relief valve to ensure it's functioning properly.
• Check Burner and Vent: Inspect the burner and vent for debris or blockages to maintain efficient combustion.
• Check Gas Connection: Ensure gas connections are secure and leak-free for safe operation.

Regular maintenance helps ensure optimal performance and extends the life of your water heater.