This assembly comes with a built in thermocouple for automatic flame detection and added Enhances your appliances with this stable and assembly, ensuring a safe and cooking every time Stainless Steel shell, rustproof and enduring and have a super longservice life Suitable for homeowners and professional installation and repair engineers, this assembly is perfect for appliances like fireplaces When you install it do not over bend the copper pipe. So as not to cause unnecessary losses, Manufacturer: TSMORY