A.O. SMITH 100346616 Ultra Nox Burner 020363215934 A.o.smith 103346616

( Brand: A.o. Smith ), ( Manufacturer Part Number: 100346616 ), ( Type: Burner Assembly ), ( Color: Silver ), ( Material: Steel ), ( Item Length: 24 ), ( Item Width: 12 ), ( UPC: 020363215934 )

Review A.O. SMITH .o. Genuine.o.smith Ultra Low Nox Burner Assembly Inch Tco

The A.O. Smith 100346616 and 103346616 Ultra Nox Burners are high-performance, efficient heating solutions designed for use in both residential and commercial applications. These burners are ideal for use with liquid propane (LP) or natural gas (NG), offering versatility and flexibility for a wide range of heating needs.

The Ultra Nox Burner 18, as the name suggests, has a heating input of 18,000 BTUs. It features a robust, cast-aluminum burner head that is both durable and corrosion-resistant. The burner design includes a patented, swirl-burning system that ensures a consistent, even flame, while also minimizing the amount of unburned fuel and reducing emissions. This not only improves combustion efficiency but also helps to reduce your carbon footprint and save on fuel costs.

The burner head is designed to fit standard 18-inch vented water heaters and is compatible with both atmospheric and power-vented applications. It comes with a built-in, high-limit safety control that automatically shuts off the burner if the water temperature exceeds a set limit, ensuring safe and reliable operation.

The Ultra Nox Burner 18 is also equipped with a pilot tube igniter, which provides a reliable and easy-to-use ignition system. The burner also includes a thermocouple, which senses the pilot flame and sends a signal to the gas valve to maintain a steady flow of gas to the burner.

The A.O. Smith 103346616 Ultra Nox Burner 18 is also available in a 20,000 BTU version (model 103346617), offering even greater heating capacity for larger applications. Both models come with a one-year limited warranty on the burner and a five-year limited warranty on the burner head, providing peace of mind and ensuring that you are investing in a high-quality, reliable heating solution.

In summary, the A.O. Smith 100346616 and 103346616 Ultra Nox Burners are powerful, efficient, and versatile heating solutions designed for use with LP or NG. They feature a robust, corrosion-resistant burner head, a patented swirl-burning system, and a reliable ignition system, making them an excellent choice for a wide range of heating applications. With their high heating capacity, built-in safety features, and long-term warranties, these burners offer both performance and peace of mind.

The A.O. Smith 100346616 and 103346616 Ultra Nox Burners are high-performance, efficient water heaters that offer several advantages and disadvantages. Here's a brief overview of each:

**A.O. Smith 100346616 Ultra Nox Burner**

1. High Efficiency: With an energy factor of 0.81, this water heater is energy efficient and can save you money on your utility bills.

2. Large Capacity: It has a 50-gallon capacity, making it suitable for larger households or businesses.

3. Durable Construction: The tank is made of heavy-duty steel and is lined with glass-coated material for added durability and protection against rust.

4. Ultra Nox Burner: This burner technology provides a more complete combustion process, reducing nitrogen oxide emissions and improving overall efficiency.

1. Size: Due to its large capacity, this water heater requires more space for installation.

2. Cost: The upfront cost of this water heater is higher than some other models on the market.

**A.O. Smith 103346616 Ultra Nox Burner**

1. High Efficiency: This water heater has the same energy factor of 0.81 as the 100346616 model, making it energy efficient and cost-effective.

2. Large Capacity: It also has a 50-gallon capacity, making it suitable for larger households or businesses.

3. Durable Construction: The tank is made of the same heavy-duty steel and lined with the same glass-coated material as the 100346616 model.

4. Ultra Nox Burner: This burner technology is the same as that of the 100346616 model, providing a more complete combustion process and reducing nitrogen oxide emissions.

1. Size and Cost: The same disadvantages of the 100346616 model apply to this one - it requires more space for installation, and the upfront cost is higher than some other models.

In conclusion, the A.O. Smith 100346616 and 103346616 Ultra Nox Burners are high-performance, efficient water heaters suitable for larger households or businesses. Their advantages include high efficiency, large capacity, durable construction, and Ultra Nox Burner technology. The main disadvantages are their size and cost.

If you have the space and budget for a high-capacity, energy-efficient water heater, these models are worth considering. However, if you have limited space or a smaller budget, you may want to consider other options with smaller capacities and lower upfront costs. Ultimately, the decision depends on your specific needs and circumstances.

Details:

part #: 100346616 prices

• $275.00-$329.99

specifications wateheat:

• brand: A.o. Smith
• mpn: 100346616
• type: Burner Assembly
• color: Silver
• material: Steel
• item length: 24
• item width: 12
• upc: 020363215934

general wateheat:

• Heating, Cooling Air > Water Heaters > Water Heater Parts
• condition: New

offer wateheat:

• sold: 0
• best offers: True
• quantity: 9
• availability: In Stock
• options: Ship-to-home
• started: September 23, 2025

shipping wateheat:

• type: Fixed
• service: Expedited, Expedited with Adult Signature required
• transit: 2-6 Days
• class: Expedited
• cost: $0.00

payments wateheat:

• other
• credit card: Diners-club
• wallet: Paypal

seller wateheat:

• city: Ogden, Utah
• # reviews: 69477
• rating: 99.4%

returns wateheat:

• method: Money back
• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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