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MODEL
BTU/HR
INPUT
MODEL
ETS/U 130 130,000 X X X
ETS/U 140 140,000 X X
ETS/U 150 150,000 X X
ETS/U 160 160,000 X X
ETS/U 175 175,000 X X
ETS/U 180 180,000 X X X X
ETS/U 200 200,000 X X X X
ETS/U 225 225,000 X X X X
ETS/U 250 250,000 X X X X
ETS/U 40 40,000 X X
ETS/U 50 50,000 X X X
ETS/U 60 60,000 X X
ETS/U 75 75,000 X X
ETS/U 80 80,000 X X
ETS/U 90 90,000 X X
ETS/U 100 100,000 X X
ETS/U 110 110,000 X X
ETS/U 120 120,000 X X
ETS/U 125 125,000 X X X
MODEL SELECTIONS
GENERAL FEATURES
• 19 different Btu/hr sizes and more than 100
different configurations to custom design
your infrared heating system.
• CSA design certified
• Vented or indirect vented operation
• Sidewall or through-the-roof venting
• Natural and propane gas models
PULL THROUGH SYSTEM
• Products of combustion are pulled
through the combustion chamber for
increased radiant efficiency and greater
safety
• No draft hoods, totally enclosed
combustion chamber
• Heavy-duty draft inducer with permanently
lubricated, totally enclosed, fan cooled,
and heavy-duty ball bearing motor for
maintenance-free operation
• Draft inducer can be rotated 45° or 90°
for sidewall venting
BURNER SYSTEM
• Heavy-duty cast iron burner
• 10-year limited warranty on burner
• Inside or outside air for combustion
• Up to 50 ft. outside combustion air duct
capability
• Standard 6” combustion air duct opening
• Reliable direct spark ignition system and
100% gas shut-off safety control
• 30-second pre-purge prior to ignition
• State-of-the-art step opening redundant
combination gas valve for quiet ignition
and added safety
• Diaphragm air switch for proof of venting
before gas flow and ignition
• Diagnostic monitoring light system
• Burner inspection sight glass
RADIANT EMITTER TUBE SYSTEM
• 4” O.D. heavy-duty calorized aluminized
steel or alumi-therm steel combustion
chamber (10 feet) and heavy duty hot-
rolled steel emitter tubes
• 3-year limited warranty on the emitter
tubes
• Suitable for horizontal or angle mounting
up to 45°
• Optional 90° elbows
• Up to 75 feet sidewall vent capacity
REFLECTOR SYSTEM
• Highly efficient aluminum reflectors with
reflectivity rating of 97.5%
• Optional end, corner, side and U-bend
reflectors
• Optional decorative grille
• Individual reflectors can be rotated up to
45° to direct heat where needed
• Easy-to-use mounting brackets
TOTAL EMITTER LUBE LENGTH*
15 FT** 20 FT 30 FT 40 FT 50 FT
ETS/ETU SERIES FEATURES
TOTAL EMITTER LUBE LENGTH*
30 FT 40 FT 50 FT 60 FT 70 FT 80 FT
NOTE: For all installations higher than
2000 ft. above sea level, please consult
the factory regarding recommended
derating of heaters.
GAS
TYPE
NATURAL 3.5” W.C. 5” W.C* 14” W.C.
PROPANE 10” W.C. 11” W.C.** 14” W.C.
BURNER
PRESSURE
VOLTAGE
AMPS
IGNITION
TYPE
MIN MAX
120 VAC
60 HZ
2.6
DIRECT
SPARK
*Indicate model number based on Btu/hr input (e.g., 100,000 Btu/hr), total emitter length, (e.g., 40 feet) and gas type (e.g., natural gas). The
unit selection for a straight tube would be ETS100-40-N and for a U-tube would be ETU100-40-N. **Available only on ETS models.
*7” W.C. for ETS/ETU (180-250) **12” W.C. for ETS/ETU (180-250)
SUPPLY PRESSURE
BTU/HR
INPUT