Sealed or separated combustion unit heaters are designed for
dirty, dusty, or mildly corrosive environments. The 1ST ever separated
combustion system in the commercial/industrial heating industry was
introduced on a Reznor Heater in the 1960’s, and that proven technology is
continued in this new separated combustion product. Model UDAS separated
combustion units require installation of a specially designed combustion
air/vent system including the unique concentric adapter box that allows for
only one building penetration for both the vent and combustion air.
The new V3 Series unit heaters are designed to provide all the
features you expect in a Reznor heater plus improved efficiency, easier
installation, and a new look ~ both inside and out.
to Reznor Sealed Combustion Page.