Providing clean and tempered makeup air to meet your application needs. The push-through design
ensures that combustion fumes will not enter the fresh air stream.
The Modular Indirect Fired Bent Module is designed to deliver clean air into an indoor environment.
The IBT heater module is approved in the United States and Canada. The unit is listed to the ANSI
Z83.8-2006 and CSA 2.6-2006 standards. Each furnace has a 6:1 Turndown Ratio and a maximum Turndown
of 28:1 for the entire unit, depending on total required BTU Capacity and number of furnaces in the
Every unit is programmed to start in high fire mode to ensure consistent light-off and is
equipped with an electronic, Vernier-type fully-modulating control system. The duct furnaces are
all type-409 stainless steel, and certified by the American Gas Association and approved by the
Canadian Gas Association. Each model utilizes a single modulating stage, and between zero and
three additional ON/OFF stages depending on the required heat output. In addition, the speed of
its power-vent blower on the single modulating furnace is varied as the gas flow changes, thereby
maintaining a constant 80% combustion efficiency over the entire gas-firing range of the unit.
Combination packages that include both exhaust and supply fans mounted on a single roof curb
are also available; please contact your sales representative for more information.