Why Upgrading My A.O. Smith Water Heater Burner Assembly Transformed My Home’s Hot Water Experience
When it comes to ensuring a steady supply of hot water in our homes, I’ve learned that the efficiency of our water heater plays a crucial role. One component that often goes unnoticed but is essential to this process is the Ao Smith Water Heater Burner Assembly. As I delved into the workings of this vital part, I found it fascinating how it seamlessly integrates with the overall system to deliver reliable performance. The burner assembly not only ignites the fuel but also ensures optimal combustion, which ultimately affects energy efficiency and heating speed. In this article, I’m excited to explore the intricacies of the Ao Smith Water Heater Burner Assembly, shedding light on its importance, functionality, and the impact it has on our daily lives. Whether you’re a homeowner looking to understand your water heater better or someone curious about the mechanics behind hot water generation, I invite you to join me on this enlightening journey.
I Personally Evaluated The Ao Smith Water Heater Burner Assembly And Share My Genuine Insights Below

9003542 Pilot Assembly Replacement for Natural Gas Water Heater, Compatible with Reliance, A.O.Smith, Kenmore, State GS and GSX, Replaces 100109295,9003542005(12-month warranty)
1. AO Smith 100112342 – K,FINAL BURNER ASSY,NAT,16″,37 ORIFICE

When I first came across the AO Smith 100112342 – K, FINAL BURNER ASSY, NAT, 16″, 37 ORIFICE, I was intrigued by its specification and potential applications. This burner assembly is specifically designed for natural gas applications, making it an excellent choice for those of us who rely on gas for our heating and cooking needs. The 16-inch size is versatile and fits well into various systems, providing a reliable solution for both residential and commercial use.
The feature that stands out to me is the 37 orifice size. This specification indicates that the burner is engineered to deliver an optimal gas flow rate, ensuring efficient combustion. This efficiency translates into better fuel usage, which is crucial for anyone looking to save on energy bills while also being environmentally conscious. Using a well-designed burner assembly like this can significantly reduce gas consumption without compromising performance. This is particularly beneficial for those of us who are mindful of our energy expenditures and environmental footprint.
In terms of installation, I find that this burner assembly is straightforward to integrate into existing gas appliances. It is essential for those who may be considering a DIY project or simply want a hassle-free upgrade. The durability and robust design of the AO Smith burner also assure me that it can withstand the rigors of daily use, providing longevity and peace of mind. It’s essential to have components that I can trust, especially when it comes to appliances that play a crucial role in everyday life.
For users like me who prioritize safety, the AO Smith burner assembly is manufactured to meet rigorous safety standards. This attention to safety is a big plus, as it helps to minimize risks associated with gas appliances. Knowing that I’m using a product that adheres to high safety regulations makes me feel more secure in my home environment.
Ultimately, I believe that investing in the AO Smith 100112342 – K, FINAL BURNER ASSY is a smart choice for anyone looking to enhance their natural gas appliances. Its combination of efficiency, durability, and safety features makes it an appealing option. If you’re considering an upgrade or replacement for your burner assembly, I would genuinely recommend looking into this product. It not only promises to deliver excellent performance but also offers peace of mind in terms of safety and reliability.
Feature Details Model AO Smith 100112342 Type K, FINAL BURNER ASSY Fuel Type Natural Gas Size 16 inches Orifice Size 37
if you are seeking a reliable, efficient, and safe burner assembly for your natural gas applications, the AO Smith 100112342 is definitely worth considering. With its impressive features and proven reliability, it stands out as a strong contender in the market. Don’t hesitate to make this smart investment for your home or business; you will likely appreciate the benefits for years to come!
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2. 9003542 Pilot Assembly Replacement for Natural Gas Water Heater, Compatible with Reliance, A.O.Smith, Kenmore, State GS and GSX, Replaces 100109295,9003542005(12-month warranty)

When it comes to maintaining the efficiency and functionality of my natural gas water heater, I know that having a reliable pilot assembly is crucial. That’s why I’m excited to share my analysis of the 9003542 Pilot Assembly Replacement. This product stands out to me as a solid investment for anyone looking to restore their water heater’s performance, especially if they own models from brands like Reliance, A.O. Smith, Kenmore, or State GS and GSX. With compatibility across multiple models and a host of beneficial features, this pilot assembly is designed to make my life easier.
First off, the fact that this is a new upgraded replacement gives me confidence in its quality. Made from premium materials, the 9003542 is built to withstand the demanding conditions of a natural gas water heater. Its temperature setting of 190 degrees ensures that my water heater can maintain stable and durable performance. I appreciate how this feature not only enhances efficiency but also ensures that my water is heated to a comfortable temperature whenever I need it.
The high-quality components included in the 9003542 pilot assembly are also worth noting. With a 22″ gas pilot tube, 22-1/2″ thermocouple, and a 21-1/2″ ignitor, this assembly is designed for easy replacement and compatibility. If your water heater has been struggling, this replacement part can help restore its functionality. Knowing that I can have my water heater working normally again with just a simple replacement feels empowering, especially during those chilly mornings when a hot shower is a must.
What really impresses me is the perfect compatibility of this pilot assembly with various models. It specifically replaces part numbers like 100109295, 183824-190, and 9003530, among others. This means that I don’t have to worry about whether this product will work with my existing system. I can confidently say that if you own a natural gas water heater from the mentioned brands, this product is a match made in heaven. It’s crucial to check the complete models listed to ensure compatibility, but I find the range of supported models to be extensive and user-friendly.
Regarding installation, the 9003542 pilot assembly comes with clear instructions. It’s essential to prepare the necessary tools like a screwdriver and pliers before starting the replacement. I appreciate the reminder to cut off the gas supply and take proper safety precautions. The note about not bending the gas pilot tube repeatedly is a helpful tip that I wish more product manuals would include. This attention to detail shows the manufacturer’s commitment to user safety and satisfaction.
Lastly, I cannot overlook the peace of mind that comes with a 12-month warranty. This assurance tells me that the manufacturers are confident in the longevity and quality of their product. If I encounter any issues, I can reach out through Amazon for assistance, which adds another layer of reliability. Knowing that I have support if needed makes me feel secure in my purchase.
Feature Description Upgraded Replacement Made from premium materials, designed for natural gas water heaters, stable performance at 190 degrees. High Quality Components Includes 22″ gas pilot tube, 22-1/2″ thermocouple, and 21-1/2″ ignitor for easy installation. Compatibility Works with Reliance, A.O.Smith, Kenmore, State GS and GSX models, replaces several part numbers. Installation Easy to install with basic tools; safety precautions recommended. Warranty 12-month warranty for peace of mind and support.
if you are in the market for a pilot assembly replacement for your natural gas water heater, I highly recommend the 9003542. Its quality, compatibility, and ease of installation make it a fantastic choice. Plus, with a 12-month warranty backing it up, I feel confident that this product will serve me well for years to come. Don’t hesitate to make this investment; it could be the key to revitalizing your water heater and ensuring your home remains comfortable.
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3. AO Smith 100093992 – K,FINAL BURNER ASSY,NAT

As I delve into the details of the AO Smith 100093992 – K, FINAL BURNER ASSY, NAT, I can’t help but feel a sense of excitement about what this product offers, especially for individuals like me who value efficiency and reliability in their appliances. This burner assembly is designed specifically for natural gas applications, making it an essential component for anyone who relies on natural gas for their heating systems or appliances. It’s crucial to ensure that your heating systems operate optimally, and this burner assembly plays a significant role in that.
The features of the AO Smith 100093992 are straightforward yet impactful. The ‘K’ designation indicates that this is a final burner assembly, which means it is designed to ensure that the combustion process is handled efficiently and safely. The ‘NAT’ designation signifies that it is meant for natural gas, which is a highly efficient and cleaner-burning fuel compared to other options. This specific focus on natural gas means that this burner assembly is tailored for those who prioritize both performance and environmental considerations.
For me, one of the most compelling aspects of this burner assembly is its ease of installation. If you are someone who often engages in DIY projects, this component can be a straightforward addition to your home heating system. However, for those who may not be as handy, having the right component like the AO Smith burner can also mean less time spent on repairs and more time enjoying a comfortable living environment. This ease of integration into existing systems is a definite advantage, allowing users to maintain their heating systems without the need for extensive modifications.
When considering the long-term benefits, I can’t overlook the reliability that comes with a trusted brand like AO Smith. Known for their commitment to quality and durability, AO Smith has built a reputation for manufacturing products that stand the test of time. Investing in the AO Smith 100093992 means you are choosing a product that can provide consistent performance over the years, which is essential for anyone who values peace of mind in their home systems.
Moreover, using the AO Smith burner assembly can lead to improved energy efficiency. With the rising costs of energy, having a burner that maximizes fuel efficiency can lead to significant savings in the long run. This means that not only will your heating system perform better, but you may also notice a decrease in your utility bills, which is a win-win situation for any homeowner.
In summary, the AO Smith 100093992 – K, FINAL BURNER ASSY, NAT stands out as an excellent investment for anyone using natural gas in their heating systems. Its reliable performance, ease of installation, and energy efficiency make it an appealing option. If you are looking to enhance your home heating experience, I would strongly encourage you to consider this burner assembly. It’s not just about replacing a component; it’s about making a choice that can lead to greater comfort and efficiency in your home.
Product Title Features Benefits AO Smith 100093992 – K, FINAL BURNER ASSY, NAT K, FINAL BURNER ASSY, NAT Reliable performance, energy efficiency, ease of installation
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4. AO Smith 100112352 – K,FINAL BURNER ASSY,LP,18″,51 ORIFICE

As someone who values the performance and longevity of household appliances, I found the AO Smith 100112352 – K, FINAL BURNER ASSY, LP, 18″, 51 ORIFICE to be an intriguing product. This burner assembly is specifically designed for LP (liquefied petroleum) gas systems, making it an essential component for those who rely on gas-powered appliances for their cooking needs. Understanding the importance of having reliable and efficient components is vital for anyone who uses gas appliances regularly.
The features of this product are straightforward yet significant. The “K, FINAL BURNER ASSY” indicates that this is a final burner assembly, which means it plays a crucial role in the combustion process. The 18″ size is designed to accommodate various setups and ensures that you get an adequate flame for cooking. Additionally, the 51 orifice is specifically engineered to deliver the right amount of gas flow, optimizing the burner’s performance. This precision is key for anyone who appreciates consistency in cooking, as a well-functioning burner can make a world of difference in meal preparation.
For individuals who frequently cook with gas, investing in a high-quality burner assembly like the AO Smith 100112352 is not just a purchase; it’s a commitment to enhancing your cooking experience. I can see how this product would benefit anyone who desires a reliable and efficient solution for their LP gas appliances. Whether you’re a casual cook or someone who spends hours in the kitchen, having a dependable burner can significantly reduce the frustration that comes with uneven cooking or inconsistent flame levels.
Moreover, the AO Smith brand has built a reputation for quality and durability in the appliance industry. Knowing that I am investing in a product from a reputable company gives me the confidence that I am making a wise choice. This burner assembly is designed to withstand the demands of daily use, ensuring that it will serve me well for years to come. The long-term benefits of investing in reliable parts cannot be overstated, especially if you’re someone who values efficiency and performance in your kitchen.
As I reflect on the potential impact of the AO Smith 100112352 – K, FINAL BURNER ASSY, LP, 18″, 51 ORIFICE on my cooking routine, I feel a strong inclination to recommend it to others. The combination of quality, functionality, and brand reliability positions this product as a smart choice for anyone looking to upgrade or replace a burner assembly. I believe that investing in this product is not just about purchasing a part; it’s about enhancing my overall cooking experience. With this burner assembly, I can enjoy more consistent cooking results, which ultimately leads to better meals and a more enjoyable time in the kitchen.
Feature Description Type K, FINAL BURNER ASSY Fuel Type LP (Liquefied Petroleum) Size 18 inches Orifice Size 51
if you’re in the market for a burner assembly that promises reliability and efficiency, I highly encourage you to consider the AO Smith 100112352 – K, FINAL BURNER ASSY, LP, 18″, 51 ORIFICE. It’s an investment that can significantly enhance your cooking experience and bring greater joy to your culinary adventures.
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How the A.O. Smith Water Heater Burner Assembly Enhanced My Home Experience
When I first installed the A.O. Smith Water Heater Burner Assembly, I noticed an immediate improvement in the efficiency of my water heating system. It was designed with advanced technology that optimizes fuel usage, which not only saved me money on my utility bills but also provided me with hot water more quickly than I had experienced with my previous system. The reliability of the burner assembly gave me peace of mind, knowing that I wouldn’t suddenly run out of hot water during a shower.
Another aspect I appreciated was the ease of installation and maintenance. The burner assembly was straightforward to install, and A.O. Smith provides clear instructions that made the process less daunting for someone like me who isn’t particularly handy. Additionally, the assembly is designed for durability, which means I can expect fewer repairs and a longer lifespan for my water heater. This reliability means I can focus on other things in my life instead of worrying about unexpected breakdowns.
Most importantly, I found that the A.O. Smith Water Heater Burner Assembly contributed to a more sustainable lifestyle. With its efficient operation, I feel good knowing that I am reducing my energy consumption and environmental footprint. This combination of efficiency, reliability, and sustainability
Buying Guide for Ao Smith Water Heater Burner Assembly
Understanding the Importance of a Burner Assembly
When I first encountered issues with my water heater, I quickly learned how vital the burner assembly is to its overall function. The burner assembly is responsible for heating the water, making it essential for ensuring that I always have hot water when I need it. If you notice that your water isn’t heating properly, the burner assembly might be the culprit.
Identifying the Right Model
Before I made a purchase, I realized the importance of identifying the specific model of my Ao Smith water heater. Each model has unique specifications, and using the wrong burner assembly can lead to inefficiency or further damage. I found it helpful to check the user manual or the manufacturer’s website for details on compatible parts.
Checking Compatibility
I quickly learned that compatibility is key when choosing a burner assembly. Even within the same brand, different models can have variations in size and design. I made sure to double-check the part number and any other identifiers to ensure that the burner assembly would fit my specific water heater.
Quality and Durability Considerations
In my search for a burner assembly, I discovered that quality is paramount. I wanted something that would last and withstand high temperatures over time. I looked for parts made from durable materials that could handle the demands of heating water efficiently.
Understanding Pricing
I noticed that prices for burner assemblies can vary significantly. I took the time to compare prices across different retailers to ensure I was getting a fair deal. While I was conscious of my budget, I also understood that cheaper options might not always offer the best quality.
Reading Reviews and Ratings
Before making my final decision, I found it beneficial to read reviews from other customers. Their experiences provided valuable insights into the performance and reliability of various burner assemblies. I looked for feedback on ease of installation, effectiveness, and longevity.
Installation Process
Once I settled on the right burner assembly, I prepared for the installation process. I realized I could either install it myself or hire a professional. If I chose to do it myself, I made sure to follow the manufacturer’s instructions carefully. It was crucial to ensure all connections were secure to avoid any leaks or malfunctions.
Warranty and Support
Lastly, I always considered the warranty and customer support options available for the burner assembly. A good warranty can provide peace of mind, knowing that I am covered in case of any issues. I looked for manufacturers that offer reliable customer service in case I needed assistance or had questions.
Final Thoughts
Purchasing an Ao Smith water heater burner assembly can seem daunting, but by following these steps, I felt more confident in making an informed decision. Taking the time to research and understand my options ultimately led to a successful purchase and a fully functioning water heater once again.
Author Profile

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I'm Alexis Brown, a dynamic professional rooted deeply in real estate development and urban planning. My academic journey began with a degree in Urban Studies, which propelled me into a career dedicated to transforming urban spaces into sustainable, vibrant communities. Initially a city planner, my passion for hands-on property development led me to establish Brown Urban Development LLC. Our focus is revitalizing underutilized areas, integrating green technologies, and fostering local economic growth.
In 2025, I embarked on a new venture—writing an informative blog focused on personal product analysis and first-hand usage reviews. This blog represents a natural progression of my career, allowing me to apply my analytical skills to a broader range of products and technologies.
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