Lochinvar & A.O. Smith 100145466 Tile 322838 752 Its robust construction is specifically Its robust construction is specifically built to handle the cycling demands of commercial environments where reliability is non negotiable The field replaceable thermostatic element allows for fast troubleshooting and repair without breaking the refrigerant lines Precision Thermal Barrier: Maintains consistent internal chamber temperatures for 85% or higher thermal efficiency Properly maintaining the combustion chamber insulation with this authentic 100145466 tile is essential for meeting thermal efficiency ratings and ensuring clean ignition