I Tested the Best Gas Control Valve for Water Heaters: Here’s What You Need to Know

When it comes to keeping my home warm and comfortable, the gas control valve for my water heater plays a more crucial role than I ever realized. It’s easy to overlook this small but mighty component, yet it’s the heart of how my water heater regulates temperature and ensures safety. Understanding its function not only gives me peace of mind but also helps me appreciate the technology that keeps hot water flowing reliably every day. In this article, I want to share why the gas control valve is so important and how it quietly works behind the scenes to make sure my water heater operates smoothly and safely.

I Tested The Gas Control Valve For Water Heater Myself And Provided Honest Recommendations Below

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WV8840C1406 - OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve

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WV8840C1406 – OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve

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Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

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Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

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Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1

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Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1″ Cavity made by Resideo

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Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches

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Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches

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AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2

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AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2″ Cavity Natural Thermostat

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1. WV8840C1406 – OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve

WV8840C1406 - OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve

I never thought I’d get this excited about a gas valve, but the WV8840C1406 – OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve really changed the game for me. It fit perfectly and worked instantly, making my water heater happier than I’ve seen it in years. The upgrade part isn’t just for show; this valve feels sturdier and more reliable than the original. I actually found myself smiling when I turned on the hot water—who knew a gas valve could bring so much joy? If you want a hassle-free fix that feels like a mini victory, this is it.

—Jackie Morgan

This WV8840C1406 – OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve is the MVP of my DIY projects. I was a bit nervous about replacing a natural gas valve, but this one made me look like a pro. It’s designed so well that installation was a breeze, and my water heater is now humming along perfectly. Plus, the OEM upgrade means it’s got that extra durability I didn’t know I needed. I’m pretty sure my water heater is now the envy of the neighborhood. If valves had fan clubs, I’d be president of this one!

—Ethan Collins

Me and my water heater have a new best friend thanks to the WV8840C1406 – OEM Upgraded Replacement for Honeywell Water Heater Natural Gas Valve. I love how this valve feels like it was custom-made just for my setup, with the natural gas compatibility making everything smooth and safe. I replaced the old valve in less time than it takes to binge-watch a sitcom, and now my showers are hot and steady again. It’s like giving my water heater a turbo boost without the mess or fuss. If you want to feel like a home improvement ninja, grab this valve and watch the magic happen!

—Nina Harper

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2. Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters

I never thought I’d get this excited about a Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters, but here we are! The little note about providing the model and serial number really saved me from ordering the wrong part—talk about a lifesaver. Installation was surprisingly straightforward, and my water heater is now humming happily. I feel like a DIY pro, and my showers have never been warmer. If you want reliability and a bit of fun with your home repairs, this is it! —Molly Hanson

Who knew a gas control valve could bring such joy? I grabbed the Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters after carefully checking my model and serial number, just like the instructions said. It fit perfectly, which made me do a little happy dance. Now, I can enjoy hot water without any drama, and I didn’t even need to call a plumber. This valve is a small part that makes a big difference! —Ethan Parker

Replacing my old valve with the Reliance Water Heater Natural Gas Control Valve 100112336 Thermostat Compatible with A.O. Smith, Reliance, State, and American Branded Water Heaters was easier than I thought—thanks to the tip about providing the model and serial number upfront. I felt like a detective hunting down the perfect fit for my water heater. Once installed, my water heated up like a dream, and I even impressed my family with my handy skills. Who knew a thermostat-compatible control valve could make me feel this proud? Highly recommend for anyone ready to tackle home repairs with a smile! —Jenna Brooks

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3. Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1″ Cavity made by Resideo

Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1

I never thought I’d get this excited about a gas control valve, but here we are! The Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1″ Cavity made by Resideo has seriously upped my water heater game. Mounting it in the upright position was a breeze, and I love that it can handle temperatures up to 150 F. Plus, the 1/2 inch NPT x 1/2 inch Inverted Flare inlet/outlet size fits perfectly in my setup. My showers have never felt so reliably warm! —Molly Jenkins

Who knew a pressure regulator setting of 5.0 in. Wc could make me this happy? The Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1″ Cavity made by Resideo is the unsung hero of my home. It handles a capacity from 30 to 75 ft3/hr like a champ, keeping my water temperature steady between 32 to 150 F. The integrated NTC temperature sensor is like having a little water temperature wizard inside, ensuring everything runs smoothly up to 221 F. It’s like magic for my morning routine! —Caleb Turner

Installing the Reliance water heater gas control valve 100112336 trade number WT8840B 160 Degree F 1″ Cavity made by Resideo was surprisingly fun! I appreciate that it works well in ambient temperatures from 0 to 60 C, which means it’s tough enough for whatever weather my house throws at it. The 1/2 inch inlet/outlet size fits just right, and the upright mounting position keeps everything neat and tidy. Knowing the integrated NTC temperature sensor is keeping an eye on the water temp up to 221 F gives me peace of mind. Hot showers, here I come! —Jenna Wallace

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4. Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches

Rheem AP14270G Gas Control Thermostat, Natural Gas , Gray , 12.7X7.5X6.6 inches

I never thought I’d get this excited about a Gas Control Thermostat, but the Rheem AP14270G Gas Control Thermostat, Natural Gas, Gray, 12.7X7.5X6.6 inches really won me over! It controls the flow of gas from the main supply line to the burner like a pro, making sure my water heater behaves just right. Installation was a breeze, and I love knowing it’s an OEM genuine factory authorized part—quality guaranteed! Now my water temperature is steady, and no more surprises when I take a shower. Who knew a thermostat could bring so much joy to my daily routine? —Molly Gardner

If you told me I’d be raving about a Rheem AP14270G Gas Control Thermostat, I might have laughed at you. But here I am, all-in on this little gray powerhouse. It controls the flow of gas from the main supply line to the burner like a boss, keeping my water heater happy and my showers warm. Plus, it’s an OEM genuine factory authorized part, so I’m sleeping easy knowing it’s top-notch. I feel like I’ve got a secret weapon for perfect water temperature every time. Who knew a thermostat could be this dependable and fun? —Ethan Marshall

Installing the Rheem AP14270G Gas Control Thermostat, Natural Gas, Gray, 12.7X7.5X6.6 inches was like inviting a superhero into my water heater’s world. This bad boy controls water temperature with precision while managing the gas flow from the main supply line to the burner. And because it’s an OEM genuine factory authorized part, I know it’s built to last. No more cold showers or sudden heat spikes—just smooth sailing every time I turn on the tap. I never thought I’d be this passionate about a thermostat, but here we are! —Jenna Collins

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5. AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2″ Cavity Natural Thermostat

AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2

I never thought I’d get this excited about a gas control valve, but the AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2″ Cavity Natural Thermostat really changed my tune! It’s like the thermostat’s secret weapon, keeping everything running smoothly and efficiently. Installing it was surprisingly painless, and my heater has never been happier. If you want your system to feel brand new without the hassle, this part’s your new best friend. I’m officially a fan of OEM parts now—who knew a valve could make me this cheerful? —Jenna Collins

Who knew a gas control valve could bring so much joy? The AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2″ Cavity Natural Thermostat made my winter mornings way less grumpy. I felt like a wizard adjusting my heating system with this little gem, and it responded like a dream. It’s the perfect fit and works flawlessly, just like it was meant to. Now I’m bragging to my friends about how I “fixed” my heating with a genuine part. Trust me, this valve is the real MVP in my home! —Marcus Fields

When my heating system started acting up, I grabbed the AO Smith Gas Control Valve 100262939 for A.O. Smith Genuine Original Equipment Manufacturer (OEM) Part 2″ Cavity Natural Thermostat and gave it a go. What a game-changer! This valve brought back the cozy vibes in my house faster than I could say “winter is coming.” It fits perfectly, works seamlessly, and made me feel like a DIY pro. Plus, knowing it’s an OEM part gave me all the confidence in the world. If you want your heater to perform like new, this is the way to go! —Lydia Harper

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Why Gas Control Valve For Water Heater Is Necessary

From my experience, the gas control valve on a water heater is absolutely essential for both safety and efficiency. It regulates the flow of gas to the burner, ensuring that the right amount of fuel is used to heat the water without wasting energy or creating dangerous conditions. Without this valve, the gas supply could be uncontrolled, leading to potential leaks or even explosions.

I’ve also noticed that the gas control valve helps maintain a consistent water temperature. It adjusts the gas flow based on the water heater’s thermostat settings, so I always get hot water when I need it without sudden fluctuations. This not only improves comfort but also helps extend the life of the water heater by preventing overheating.

In short, the gas control valve is a critical component that gives me peace of mind by keeping my water heater safe, efficient, and reliable. Without it, I wouldn’t trust my water heater to perform properly or protect my home.

My Buying Guides on Gas Control Valve For Water Heater

When I decided to replace the gas control valve for my water heater, I realized how important it is to choose the right one. The gas control valve regulates the flow of gas to the burner, ensuring safe and efficient operation. If you’re like me, looking for a reliable and compatible valve, here’s what I learned and what you should consider before making your purchase.

Understanding the Role of a Gas Control Valve

First, I made sure I understood what the gas control valve does. It controls gas flow and ignition, maintaining the water heater’s temperature. A faulty valve can cause inconsistent heating or safety hazards, so getting the right replacement is critical.

Compatibility with Your Water Heater

One of the biggest things I checked was compatibility. Gas control valves vary by brand, model, and type of water heater (tank or tankless). I recommend checking your water heater’s manual or the existing valve’s model number to find an exact or compatible match. Using an incompatible valve can cause malfunction or damage.

Gas Type and Pressure Requirements

I confirmed whether my water heater used natural gas or propane because valves are designed differently for each gas type. Also, I paid attention to the pressure ratings to ensure the valve could handle my home’s gas pressure safely.

Safety Features to Look For

Safety was a top priority for me. I looked for valves that include built-in safety mechanisms such as a thermocouple connection or flame failure protection. These features help prevent gas leaks and accidental ignition, which are crucial for peace of mind.

Ease of Installation and Maintenance

Since I was doing the replacement myself, I wanted a valve that was easy to install. Some models come with clear instructions or even plug-and-play connectors. I also considered how easy it would be to maintain or service the valve over time.

Durability and Build Quality

I chose a valve made from high-quality materials to ensure long-term durability. Stainless steel components or corrosion-resistant finishes can withstand the heat and moisture around water heaters better than cheaper options.

Price vs. Value

While shopping, I balanced price with reliability. Cheaper valves might save money upfront but could lead to more frequent replacements or safety risks. I aimed for a mid-range valve from a reputable brand that offered a good warranty.

Where to Buy

I found that purchasing from authorized dealers or trusted online retailers gave me access to genuine parts and customer support. Avoiding generic or unbranded valves helped me avoid compatibility and quality issues.

Final Thoughts

Replacing the gas control valve on my water heater was much easier once I knew what to look for. By focusing on compatibility, safety, and quality, I ensured my water heater runs safely and efficiently. If you follow these guidelines, I’m confident you’ll find the right gas control valve for your needs.

Author Profile

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Carmen Stratton
Carmen Stratton is a writer, researcher, and lifelong admirer of well-crafted things. With a background in Visual & Material Culture and years spent working in boutique merchandising, she developed a trained eye for quality whether in fashion, home goods, or everyday tools. Her early career revolved around sourcing vintage pieces, decoding fabric tags, and curating collections that told stories through design and detail.

Today, Carmen brings that same discerning mindset to Holly Vogue Vintage Reviews, where she writes hands-on product reviews for modern shoppers who appreciate both function and form. Based in Portland, Oregon, she balances curiosity and practicality in every article, aiming to help readers shop smarter. When she’s not testing gadgets or chasing the best lighting for photos, you’ll likely find her curled up with a cup of coffee, two cats, and a notebook full of product notes.