they are optimized for the seating depth and geometry of Resideo valve bodies

this is a 24V VAC 50/60 Hz component

or grain facilities where combustion risks are present

a weather-resistant enclosure is required

Lochinvar & A.O. Smith 100233544 Bottom Els PW 17895 they are optimized for theThe Lochinvar & A. O. Smith 100233544 Bottom Insulation is a critical OEM replacement component designed specifically for high efficiency commercial and residential water heaters and boilers. This high density combustion chamber insulation provides essential thermal protection for the unit base, ensuring optimal heat retention and preventing thermal damage to external surfaces. Engineered for compatibility with select A. O. Smith series and Lochinvar