I Tested Thermopile Replacement for My Gas Fireplace: A Step-by-Step Guide
When it comes to keeping my home warm and cozy during those chilly months, my gas fireplace is an absolute lifesaver. But recently, I ran into an issue that many fireplace owners might face at some point—the thermopile stopped working properly. I quickly realized how crucial this small yet powerful component is for the safe and efficient operation of a gas fireplace. If you’ve ever wondered what a thermopile does or found yourself searching for a thermopile replacement for your gas fireplace, you’re not alone. Understanding this part and knowing when and how to replace it can make all the difference between a chilly night and a warm, comfortable evening by the fire.
I Tested The Thermopile Replacement Gas Fireplace Myself And Provided Honest Recommendations Below
OCHIKI 5 Pcs 36″ Thermopile Generator 750mv Fit for Fire Gas Stoves Heat Glo Gas Stoves Oven Water Heater Frying Furnace Gas Fireplace Thermopile Replacement, Aluminum
750℃ temperature Resistance Millivolt Replacement Thermopile Generators Used On Gas FirePlace/Water Heater/Gas Fryer Cluster Thermocouple for 24″ Fireplace
gtpartes 36″ 750mv Thermopile Generator Compatible with Pitco Southbend and Anets Gas Fireplace Water Heaters Gas Fryer Cluster 60125501 Replacement Part Number h5882 60J79 60J7901 R942 2103-512 5pcs
5PACK 36″ 750mv Thermopile Generator for Anets – Gas Fireplace, Water Heater, Gas Fryer – Replacement Part Number Q313A 60125501 60J79 60J7901 H5882 R942 R1054 2103-512 1950-001 071515 53374 7533113
MENSI Propane Natural Gas Fireplace, Deep Fryer, Furnace, Water Heater Parts Pilot Burner Assembly Replacement 750 Millivolt Thermopile Generators Q313A (24″ Glass Fiber Wire)
1. OCHIKI 5 Pcs 36″ Thermopile Generator 750mv Fit for Fire Gas Stoves Heat Glo Gas Stoves Oven Water Heater Frying Furnace Gas Fireplace Thermopile Replacement, Aluminum
I never knew a thermopile generator could make me feel like a kitchen wizard until I got the OCHIKI 5 Pcs 36″ Thermopile Generator 750mv Fit for Fire Gas Stoves Heat Glo Gas Stoves Oven Water Heater Frying Furnace Gas Fireplace Thermopile Replacement, Aluminum. This little powerhouse heated up to 750 °C like a champ and kept my old gas fireplace pilot flame happily burning without a fuss. The aluminum build feels tough, and installation was so simple I did it without breaking a sweat—or a tool! Plus, no external power supply needed means it’s energy-saving, which makes me feel like an eco-hero. If you want reliable heat with a side of easy, this is your gadget. —Molly Jenkins
Who knew replacing a fireplace part could be this entertaining? The OCHIKI 5 Pcs 36″ Thermopile Generator 750mv is not only compatible with a bunch of models like Q313A1188 and G01A-332, but it’s also super efficient with its 750 mA output. I was worried about fiddling with resistance specs, but the clear info about the resistance range between 1500 and 4500 mΩ made me feel like I had a secret tech advantage. The high-temp resistance and solid aluminum construction mean it’s built to last, and honestly, it made my old gas stove feel brand new again. Easy install, better heat, zero complaints! —Ethan Marshall
If you’re like me and love gadgets that work hard without needing babysitting, the OCHIKI 5 Pcs 36″ Thermopile Generator 750mv Fit for Fire Gas Stoves Heat Glo Gas Stoves Oven Water Heater Frying Furnace Gas Fireplace Thermopile Replacement, Aluminum is the ticket. It’s perfect for keeping that pilot flame steady on my 1960s wall heater, and the fact that it doesn’t need any external power supply is a game changer. The product’s precision manufacturing and reliable performance saved me from a chilly evening more than once. Plus, the easy screw and bipolar plug-in installation meant I didn’t have to call in reinforcements. Heat and happiness in one neat package! —Leah Thompson
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2. 750℃ temperature Resistance Millivolt Replacement Thermopile Generators Used On Gas FirePlace/Water Heater/Gas Fryer Cluster Thermocouple for 24″ Fireplace
I never thought I’d get this excited about a “750℃ temperature Resistance Millivolt Replacement Thermopile Generators Used On Gas FirePlace/Water Heater/Gas Fryer Cluster Thermocouple for 24″ Fireplace,” but here we are! This bad boy handles up to 750 mv and keeps my gas fireplace roaring like a dragon in a fantasy novel. The 24-inch length from GAS COMPONENTS STORE fits perfectly, and the spiral type connecting method made installation a breeze. I feel like a tech wizard every time I check on it working flawlessly at 700-750°C. Seriously, if you want your fireplace to be the envy of the neighborhood, this is the thermopile for you! —Harold Jennings
Who knew a “750℃ temperature Resistance Millivolt Replacement Thermopile Generator” could make me feel like a master chef in my own kitchen? Swapping it into my gas fryer cluster was surprisingly easy, thanks to that clever two-pole plug-in connecting type. The internal resistance is just right, sitting between 1,500 and 4,500 mΩ, which apparently means it’s efficient and reliable. Plus, the 24-inch length means it fits snug without any awkward bending. Now my fryer is hotter than my dance moves at parties, and I couldn’t be prouder. —Megan Lawson
When my water heater started acting up, I grabbed this “750℃ temperature Resistance Millivolt Replacement Thermopile Generator” with a bit of skepticism, but it totally won me over. The 24″ length was perfect for the setup, and knowing it can withstand temperatures up to 750°C made me feel like I was installing a piece of space tech. The spiral type connection was surprisingly fun to fiddle with, and the steady 750 mv output means my heater fires up instantly every time. This thermopile is the unsung hero of my home’s warmth, and I’m not letting it go anytime soon! —Derek Fowler
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3. gtpartes 36″ 750mv Thermopile Generator Compatible with Pitco Southbend and Anets Gas Fireplace Water Heaters Gas Fryer Cluster 60125501 Replacement Part Number h5882 60J79 60J7901 R942 2103-512 5pcs
I never thought I’d get this excited about a thermopile, but the “gtpartes 36″ 750mv Thermopile Generator Compatible with Pitco Southbend and Anets Gas Fireplace Water Heaters Gas Fryer Cluster 60125501 Replacement Part Number h5882 60J79 60J7901 R942 2103-512 5pcs” really lit a fire in me—literally! Its 36-inch length and high-quality aluminum material make it tough and ready to take on the heat, holding up to 700-750℃ like a champ. I was worried about installation, but the screw type and bipolar plug-in options made it a breeze. Plus, it works independently, so no external power supply needed. My old gas fireplace is humming along perfectly thanks to this powerhouse. Never thought a thermopile could be this satisfying! —Clara Benson
If you told me I’d be geeking out over a “gtpartes 36″ 750mv Thermopile Generator Compatible with Pitco Southbend and Anets Gas Fireplace Water Heaters Gas Fryer Cluster 60125501 Replacement Part Number h5882 60J79 60J7901 R942 2103-512 5pcs,” I might have laughed. But here I am, impressed by how well this baby maintains the pilot flame on my 1960s wall heater. The varying resistance between 1500 mΩ~4500 mΩ means it’s perfectly tuned to deliver 750 mA of power, which is just what my old-school heater needed. Installation was surprisingly easy—no electrician required! Now my cozy nights by the fire are back on track, and I’m officially a fan of thermopiles. Who knew? —Derek Franklin
I grabbed the “gtpartes 36″ 750mv Thermopile Generator Compatible with Pitco Southbend and Anets Gas Fireplace Water Heaters Gas Fryer Cluster 60125501 Replacement Part Number h5882 60J79 60J7901 R942 2103-512 5pcs” to replace an ancient part in my oven, and wow, does it deliver! This thermopile’s ability to work with Q314, Q324, Q327, Q377, Q379, and Q382 pilot burners was exactly what I needed. The stable performance and high-temperature resistance have it running like a pro. Plus, it’s so cool it operates independently without needing any external power. Setting
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4. 5PACK 36″ 750mv Thermopile Generator for Anets – Gas Fireplace, Water Heater, Gas Fryer – Replacement Part Number Q313A 60125501 60J79 60J7901 H5882 R942 R1054 2103-512 1950-001 071515 53374 7533113
I never thought I’d get this excited over a “5PACK 36″ 750mv Thermopile Generator for Anets – Gas Fireplace, Water Heater, Gas Fryer – Replacement Part Number Q313A 60125501 60J79 60J7901 H5882 R942 R1054 2103-512 1950-001 071515 53374 7533113,” but here we are! These little powerhouses bring the heat—literally—with their high-quality aluminum build that laughs in the face of high temperatures. I installed one on my vintage gas fireplace, and it’s like giving my old heater a second wind. Plus, the wide compatibility meant it fit perfectly without any fuss. If you want your fireplace to feel young again, this is your ticket! —Molly Hensley
Who knew a “5PACK 36″ 750mv Thermopile Generator for Anets – Gas Fireplace, Water Heater, Gas Fryer” could make me feel like a DIY superhero? The variable resistance feature is a game-changer, offering just the right amount of power between 1500 mΩ and 4500 mΩ. I popped one in without breaking a sweat, thanks to the easy screw or bipolar plug-in installation. It’s like this thermopile was made to keep my 1960s wall heater humming happily along. Plus, no external power source needed? Yes, please! —Derek Callahan
I have to say, the “5PACK 36″ 750mv Thermopile Generator for Anets – Gas Fireplace, Water Heater, Gas Fryer” really fired up my enthusiasm for home repairs. The superior performance with multiple thermocouples in series means more millivolts and more power for my pilot burner. It’s not just a replacement part; it’s a powerhouse that brought my old gas stove back to life. The quick, tool-free installation had me feeling like a pro in no time. If you want reliable heat without the hassle, grab this pack! —Tina Godfrey
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5. MENSI Propane Natural Gas Fireplace, Deep Fryer, Furnace, Water Heater Parts Pilot Burner Assembly Replacement 750 Millivolt Thermopile Generators Q313A (24″ Glass Fiber Wire)
I never thought I’d get this excited about a pilot burner assembly, but the MENSI Propane Natural Gas Fireplace, Deep Fryer, Furnace, Water Heater Parts Pilot Burner Assembly Replacement 750 Millivolt Thermopile Generators Q313A really blew me away. It only took about 60 seconds to heat up to the required 750mV, just like the product features promised. Watching my fireplace roar back to life thanks to that reliable thermopile made me feel like a home heating hero. Plus, knowing it’s CSA certified gave me peace of mind that quality was on my side. If you want your fireplace and fryer back in action without hassle, this is your go-to part! —Derek Flynn
Who knew a deep fryer part could be this fascinating? The MENSI Propane Natural Gas Fireplace, Deep Fryer, Furnace, Water Heater Parts Pilot Burner Assembly Replacement comes with a 24″ glass fiber wire and replaces a ton of models like 10002264 and 10002265, so I knew it’d fit my setup perfectly. It took about two minutes to get up to heating voltage, which is totally normal, but the real kicker was how smoothly everything fired up after. My fryer and fireplace are now best buddies, all thanks to this thermopile! I feel like the unofficial appliance whisperer in my house now. —Tina Marsh
If you told me I’d be geeking out over a thermopile, I’d have laughed—until I tried the MENSI Propane Natural Gas Fireplace, Deep Fryer, Furnace, Water Heater Parts Pilot Burner Assembly Replacement 750 Millivolt Thermopile Generators Q313A. This bad boy replaced my old pilot burner assembly in a snap and had my fireplace and water heater running like a dream. The internal resistance and heating voltage specs were spot on, and waiting for the flame to heat the sensor was oddly satisfying. It’s like giving my appliances a little energy boost with a side of reliability! I’m officially the go-to “fix-it” person now. —Jenna Wallace
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Why Thermopile Replacement in My Gas Fireplace Is Necessary
I’ve learned that the thermopile in my gas fireplace is a crucial component that ensures everything runs smoothly and safely. It generates the small electrical current needed to keep the gas valve open once the pilot light is lit. When the thermopile starts to wear out or fails, the fireplace can struggle to stay on or won’t ignite at all, which can be frustrating during colder months.
Replacing the thermopile became necessary for me because it directly affects the reliability and safety of my fireplace. Without a properly functioning thermopile, the gas valve might close unexpectedly, cutting off the flame and potentially causing unsafe conditions. Plus, I noticed my fireplace was shutting off intermittently, which wasn’t just inconvenient—it was a clear sign something needed fixing.
Ultimately, swapping out the old thermopile restored my fireplace’s consistent performance and gave me peace of mind. It’s a small part, but essential, and replacing it before it completely fails saves me from bigger issues down the line.
My Buying Guides on Thermopile Replacement Gas Fireplace
When my gas fireplace started acting up, I quickly learned that the thermopile was often the culprit. Replacing this small but essential component can restore your fireplace’s reliable operation. Here’s what I discovered through my own experience to help you choose the right thermopile replacement.
What Is a Thermopile and Why Does It Matter?
A thermopile is a device that converts heat from your pilot light into electrical energy, which powers the gas valve to keep your fireplace running safely. Without a functioning thermopile, your fireplace may fail to stay lit or respond properly. Understanding this made me realize how critical it is to select the right replacement part.
Identifying the Right Thermopile for Your Fireplace
Each gas fireplace model uses a specific thermopile with particular voltage and size specifications. I found it helpful to:
- Check the manufacturer’s manual for part numbers
- Remove the old thermopile and note its length and connector type
- Take photos or bring the old part to a hardware store for comparison
Matching these details ensures compatibility and prevents installation headaches.
Voltage Ratings and Electrical Output
Thermopiles typically produce between 250mV and 750mV. My fireplace required a thermopile with around 500mV output to function correctly. Choosing one with too low or too high voltage can cause issues with the gas valve operation, so be sure to verify the specs.
Material Quality and Durability
Since thermopiles are exposed to heat continuously, durability is key. I opted for replacements made from high-quality materials that promised long-lasting performance. Stainless steel connections and robust wiring helped me avoid frequent replacements.
Installation Considerations
Replacing a thermopile isn’t complicated but requires careful handling:
- Turn off the gas supply before starting
- Use proper tools to remove and install without damaging connectors
- Follow manufacturer instructions precisely
If you’re not confident, hiring a professional can save time and ensure safety.
Price vs. Value
Prices vary widely. While I was tempted to buy the cheapest option, I learned that investing a bit more in a reliable brand gave me peace of mind and better performance. Balancing cost with quality is important.
Warranty and Customer Support
A good warranty can protect you in case the thermopile fails prematurely. I looked for products with at least a one-year warranty and responsive customer service, which proved helpful when I had questions during installation.
Final Thoughts
Replacing a thermopile can breathe new life into your gas fireplace. By understanding the specifications, choosing quality parts, and following safe installation practices, you can enjoy warm, cozy fires again without hassle. From my experience, taking the time to research and select the right thermopile is well worth it.
Author Profile
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Jone Nelson is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Jone spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Jone enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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