A quality thermopile is a must have for any fireplace owner. Using this helps you keep your fireplace lit and working properly. We made sure to make ours very durable so you don't have to worry about it and it's extremely easy to install! You may also notice sore cheeks from constantly smiling about your new fireplace parts purchase! This is a generic product designed and engineered to fit perfectly. This is not a Monessen OEM product and is not covered under any Monessen manufacturer's warranty. Please check your manufacturer’s warranty with regard to the use of non-OEM parts. GEC Imports provides no warranty or guarantee with regard to the product or its compatibility with your Monessen product. Any use of GEC Products non-OEM products in your Monessen product is done at your own risk. The Monessen brand names and logos are the registered trademarks of their respective owners. Any use of the Monessen brand name or model designation for this product is made solely for purposes of demonstrating compatibility.