RSS/RSU Series
Commercial Low Intensity
Sterling RSS/RSU Series low intensity infrared heaters are available with inputs of 40 to 200 MBH and system lengths of 10 to 70 feet. All units are field assembled and utilize Sterling’s integral tube/reflector hanging system. The burner is of the box type design and is totally enclosed to protect against dust and moisture.
Standard Features
Combustion Air and Ventilation
Combustion air and venting requirements for all gas-fired heating equipment must be provided per the National Fuel Gas Code NFPA54 or the authority having jurisdiction over the installation. In contaminated atmospheres or high humidity areas, optional outside air for combustion can be supplied. Heaters can be common vented, vented, or indirect vented. Refer to the Installation and Operation Instructions for further information. A vented installation must be vented to the outside of the building with a flue pipe. An Indirect vented installation requires a minimum ventilation flow of 4 CFM per 1000 Btu/hr of total installed heater capacity on natural gas by either gravity or power ventilation (4.18 CFM per 1000 Btu/hr for propane). For indirect vented applications, building exhaust openings must be located above the level of the heaters and inlet air openings must be located below the level of the heaters.
For Your Safety
OPERATE GAS INFRARED HEATERS WITH PROPER CARE AND OBSERVE ALL SAFETY PRECAUTIONS. Installation and service must be performed by a licensed contractor. The installation must conform to Manufacturer's Installation and Operating Instructions or local codes. In the absence of local codes, the installation must conform to the National Fuel Gas Code ANSI
Z223.1 (latest edition, also known as NPFA54) or CAN / CSA-B149 installation codes (latest edition)
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