Our BLO24T blower kit is designed to fit specific gas fireplace models from Majestic, Martin, Monessen and Vermont Castings. Features a quiet, 100% ball bearing 90 CFM blower that will literally transform your gas fireplace into an efficient heating appliance. Please see the full compatibility list below to ensure proper fitment. Installation of the blower may be required before the gas appliance is installed. Cross references: BLO24, BLO24T, BLO24TB, 33D0700K The BLO24T kit includes a variable speed rheostat controller and snap style thermostat disc. The variable speed control mounts conveniently below the fireplace and provides full RPM range speed control of your blower. The rheostat also has an on/off position that can be used to manually turn the blower on and off. The integrated thermodisc is connected with high temperature wire and “snaps” into a small retaining clip that press fits the thermostat to the surface of the firebox. Your fireplace should already have this clip installed. If not, we can supply a magnetic thermostat sensor instead. Once installed, the thermostat will automatically control when your fireplace turns on and off, giving you hands free control of the blower. Inline full range rheostat with on/off position. Mounts below the fireplace.