Electrical draft barrier heater custom #LBT4200 800 watt; 208 Volt 4′ long CUSTOM ELECTRICAL DRAFT BARRIER HEATER. 1/2″ and 3/4″ knockouts shall be provided in the side and rear of the heater junction box to permit end to end wiring. All blank sections shall be fully enclosed to allow branch circuit wiring. byJuly 3, 2026
