Gibson O4 Furnace Overview

The Gibson O4 furnace, manufactured by Nordyne, is an oil-burning furnace with an AFUE rating of up to 84 percent. This multi-firing series offers output values in the range of 0.5 to 1.2 gallons per hour. The high boy and downflow models in this line can installed in horizontal applications. The lowboy is available with a front or rear flue while the compact model is designed with a rear flue only.

The Gibson O4 furnace is manufactured with a 22-gauge steel cabinet made more durable by a powder coat finish. Its Beckett burner is pre-wired, pre-assembled, tested in the factory and ready for a supply-line upon installation. A wraparound-style radiator allows for maximum heat transfer and is insulated with spun glass and aluminum foil to keep the unit cool to the touch. The direct-drive blower is permanently lubricated, and the 4-speed blower motor is thermally protected. All models of the Gibson O4 furnace come with barometric draft control.

The welded heat exchanger has large clean-out ports, and the burner and controls can be accessed easily via the removable door. The entire blower assembly and motor can be removed for maintenance as well.