Smith Cast Iron Boilers' new Lexington(r) gas-fired, direct-vent, sealed combustion residential boiler uses 100 percent outside air for combustion to reduce heating costs and improve operation. Service-friendly features include slide-off front and top panels to expose major components located at the top of the boiler, including plaque burner and combustion. Quick-latch panel clips provide no-tool access to the combustion chamber and flue collector.

Circle 94