Having issues with your gas fireplace, oven, or grill not staying lit? This 36-inch thermopile might be exactly what you need to get things working smoothly again. This copper thermopile generator creates the millivolt power needed to keep your gas valves open and your appliances running properly. It's about 36 inches long with a 7cm (2.8-inch) probe that senses the heat from your pilot light. The whole unit weighs around 43g, and it's built tough to handle high temperatures and resist corrosion - because let's face it, gas appliances get pretty hot! What's really cool about this thermopile is it works with both regular gas and liquefied gas systems, so whether you've got a natural gas hookup or propane tanks, this should do the trick. The high sensitivity means it detects temperature changes accurately, which is crucial for maintaining consistent performance in your fireplace, stove, heater, oven, grill, or boiler. Installation is pretty straightforward if you're comfortable working with gas appliances - just make sure to turn everything off and follow safety procedures. Once it's in place, you should notice your pilot staying lit reliably and your appliances responding better to temperature adjustments. It's one of those parts that doesn't get much attention until it fails, but when it does, you'll definitely know! Having a spare on hand isn't a bad idea either, especially before winter when you'll be counting on your heating appliances. Quality construction means this should last you years without issues, keeping your home warm and your gas appliances running safely and efficiently.