ETS / ETU Series

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Features

  • 19 different Btu 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

ETS Series

MODEL INPUT BTU/HR MINIMUM MOUNTING HEIGHT
ETS40
40,000 10'
ETS50
50,000 11'
ETS60
60,000 12'
ETS75
75,000 13'
ETS80
80,000 13'
ETS90
90,000 13'
ETS100
100,000 14'
ETS110
110,000 14'
ETS120
120,000 14'
ETS125
125,000 14'
ETS130
130,000 15'
ETS140
140,000 15'
ETS150
150,000 15'
ETS160
160,000 16'
ETS175
175,000 16'
ETS180
180,000 18'
ETS200
200,000 18'
ETS225
225,000 20'
ETS250
250,000 20'

* Indicate model number based on Btu/hr input (e.g. 100,000 Btu/hr), emitter length (e.g. 30 ft.) . Control suffix (e.g. Natural Gas single stage input ) . The unit selection would be ETS100-30-N5. See Dimensions Tab for all allowable Emitter Tube Lengths.

** Minimum recommended mounting heights are intended as a guide only, as heaters may be mounted at various heights and angles. Mount heaters as high as possible. Minimums are shown as a guideline for human comfort and uniform enrgy distribution for complete building applications. Please consult your Space-Ray Representative for a detailed analysis of your particular heating requirements.

Control Suffix Type of Gas Control Option Description
N5 Natural Single Stage Gas Valve - Single Stage Input
L5 Propane Single Stage Gas Valve - Single Stage Input
ETS Series Floor Level Coverage Charts

ETU Series

MODEL INPUT BTU/HR MINIMUM MOUNTING HEIGHT
ETU40
40,000 10'
ETU50
50,000 11'
ETU60
60,000 12'
ETU75
75,000 13'
ETU80
80,000 13'
ETU90
90,000 13'
ETU100
100,000 14'
ETU110
110,000 14'
ETU120
120,000 14'
ETU125
125,000 14'
ETU130
130,000 15'
ETU140
140,000 15'
ETU150
150,000 15'
ETU160
160,000 16'
ETU175
175,000 16'
ETU180
180,000 18'
ETU200
200,000 18'
ETU225
225,000 20'
ETU250
250,000 20'

* Indicate model number based on Btu/hr input (e.g. 100,000 Btu/hr), emitter length (e.g. 30 ft.) . Control suffix (e.g. Natural Gas single stage input ) . The unit selection would be ETU100-30-N5. See Dimensions Tab for all allowable Emitter Tube Lengths.

** Minimum recommended mounting heights are intended as a guide only, as heaters may be mounted at various heights and angles. Mount heaters as high as possible. Minimums are shown as a guideline for human comfort and uniform enrgy distribution for complete building applications. Please consult your Space-Ray Representative for a detailed analysis of your particular heating requirements.

Control Suffix Type of Gas Control Option Description
N5 Natural Single Stage Gas Valve - Single Stage Input
L5 Propane Single Stage Gas Valve - Single Stage Input
ETU Series Floor Level Coverage Charts

Floor Level Coverage - The above chart may be used as a guideline for primary radiation, i.e. the infrared pattern directly below the heater. In a well-insulated building, only 50% of the floor needs to be covered by the primary radiant pattern. Please be aware that the radiant energy generated by infrared heaters is not limited to the primary radiant pattern. There is additional radiant energy that is absorbed outside the primary area, a secondary radiant pattern. Since concrete is a very good conductor of heat, a reasonably uniform floor temperature eventually will be reached. The amount of time it takes to reach "thermal equilibrium" is in direct correlation to the distance between the heaters. Learn More >>

Pull-Through System (negative pressure or vacuum)

  • 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 degrees for sidewall venting
  • Tubes & Reflectors are bulk shipped for easy field assembly

Burner System

  • Heavy duty cast iron burner 10 year limited warranty on burner
  • Inside or optional 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
  • 36" Stainless Steel flexible gas connector included with control box

Radiant Emitter Tube System

  • 4" O.D. heavy duty calorized aluminized steel combustion chamber (10 feet) and heavy duty hot-rolled steel emitter tubes
  • Optional calorized aluminized steel (ALC Option) radiant emitter tubes
  • 3 year limited warranty on the emitter tubes
  • Suitable for horizontal or angle mounting up to 45 degrees
  • Optional 90° elbows
  • Up to 75 feet sidewall vent capability
  • 4" O.D. flue connection for ETS/U 40-175; 6" for ETS/U180-250
  • Optional 5' or 10' body extension packages
  • ALC Option: All Calorized Aluminized steel (ALC) radiant emitter tubes-- for ALC Option the model number would be ETS100-40-ALC-N5. Note: for Dairy Barns, Greenhouses, Swimming Pools, Waste Water Treatment Plants, and other high humidity/corrosive environments, ALC option with all calorized aluminized tubes is recommended. Calorized aluminized steel emitter tubes provide long life, corrosion resistance, and high radiant efficiency -- will not flake or peel. Ideal for high humidity/corrosive environments. Learn More about Calorized Aluminized Steel Emitter Tubes (PDF).

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 & wire hangers

Other

  • CSA Certified according to ANSI Z83.20 and CSA 2.34. NOT Certified for Residential Use
MODEL INPUT BTU/HR TOTAL TUBE LENGTH
(FT)
OVERALL DIMENSION
"L" (FT)
REFLECTOR WIDTH
"W" (IN)
REFLECTOR 
HEIGHT "H" (IN)
SHIPPING
WEIGHT Lbs.**
ETS40-15 40,000 15' 17' 9" 13" 7" 96
ETS50-15 50,000 15' 17' 9" 13" 7" 96
ETS40-20 40,000 20' 22' 9" 13" 7" 126
ETS50-20 50,000 20' 22' 9" 13" 7" 126
ETS60-20 60,000 20' 22' 9" 13" 7" 126
ETS75-20 75,000 20' 22' 9" 13" 7" 126
ETS50-30 50,000 30' 32' 9" 13" 7" 162
ETS60-30 60,000 30' 32' 9" 13" 7" 165
ETS75-30 75,000 30' 32' 9" 13" 7" 162
ETS80-30 80,000 30' 32' 9" 13" 7" 162
ETS90-30 90,000 30' 32' 9" 13" 7" 162
ETS100-30 100,000 30' 32' 9" 13" 7" 162
ETS110-30 110,000 30' 32' 9" 13" 7" 162
ETS120-30 120,000 30' 32' 9" 13" 7" 162
ETS125-30 125,000 30' 32' 9" 13" 7" 162
ETS130-30 130,000 30' 32' 9" 13" 7" 162
ETS80-40 80,000 40' 42' 9" 13" 7" 198
ETS90-40 90,000 40' 42' 9" 13" 7" 198
ETS100-40 100,000 40' 42' 9" 13" 7" 198
ETS110-40 110,000 40' 42' 9" 13" 7" 198
ETS120-40 120,000 40' 42' 9" 13" 7" 198
ETS125-40 125,000 40' 42' 9" 13" 7" 198
ETS130-40 130,000 40' 42' 9" 13" 7" 198
ETS140-40 140,000 40' 42' 9" 13" 7" 198
ETS150-40 150,000 40' 42' 9" 13" 7" 198
ETS160-40 160,000 40' 42' 9" 13" 7" 198
ETS175-40 175,000 40' 42' 9" 13" 7" 198
ETS125-50 125,000 50' 52' 9" 13" 7" 234
ETS130-50 130,000 50' 52' 9" 13" 7" 234
ETS140-50 140,000 50' 52' 9" 13" 7" 234
ETS150-50 150,000 50' 52' 9" 13" 7" 234
ETS160-50 160,000 50' 52' 9" 13" 7" 234
ETS175-50 175,000 50' 52' 9" 13" 7" 234
ETS180-50 180,000 50' 52' 9" 13" 7" 234
ETS200-50 200,000 50' 52' 9" 13" 7" 234
ETS225-50 225,000 50' 52' 9" 13" 7" 234
ETS250-50* 250,000 50' 52' 9" 13" 7" 234
ETS180-60 180,000 60' 62' 9" 13" 7" 288
ETS200-60 200,000 60' 62' 9" 13" 7" 288
ETS225-60 225,000 60' 62' 9" 13" 7" 288
ETS250-60 250,000 60' 62' 9" 13" 7" 288
ETS180-70 180,000 70' 72' 9" 13" 7" 324
ETS200-70 200,000 70' 72' 9" 13" 7" 324
ETS225-70 225,000 70' 72' 9" 13" 7" 324
ETS250-70 250,000 70' 72' 9" 13" 7" 324
ETS180-80 180,000 80' 82' 9" 13" 7" 360
ETS200-80 200,000 80' 82' 9" 13" 7" 360
ETS225-80 225,000 80' 82' 9" 13" 7" 360
ETS250-80 250,000 80' 82' 9" 13" 7" 360

* Unvented use

** Hanging weight is 80% of shipping weight

MODEL INPUT
BTU/HR
TOTAL TUBE
LENGTH (FT)
OVERALL
DIMENSION
"L" (FT)
REFLECTOR
WIDTH "W" (IN)
REFLECTOR 
HEIGHT
"H" (IN)
SHIPPING
WEIGHT Lbs.**
ETU40-20 40,000 20' 12' 9" 31" 6" 146
ETU50-20 50,000 20' 12' 9" 31" 6" 146
ETU60-20 60,000 20' 12' 9" 31" 6" 146
ETU75-20 75,000 20' 12' 9" 31" 6" 146
ETU50-30 50,000 30' 17' 9" 31" 6" 182
ETU60-30 60,000 30' 17' 9" 31" 6" 182
ETU75-30 75,000 30' 17' 9" 31" 6" 182
ETU80-30 80,000 30' 17' 9" 31" 6" 182
ETU90-30 90,000 30' 17' 9" 31" 6" 182
ETU100-30 100,000 30' 17' 9" 31" 6" 182
ETU110-30 110,000 30' 17' 9" 31" 6" 182
ETU120-30 120,000 30' 17' 9" 31" 6" 182
ETU125-30 125,000 30' 17' 9" 31" 6" 182
ETU130-30 130,000 30' 17' 9" 31" 6" 182
ETU80-40 80,000 40' 22' 9" 31" 6" 218
ETU90-40 90,000 40' 22' 9" 31" 6" 218
ETU100-40 100,000 40' 22' 9" 31" 6" 218
ETU110-40 110,000 40' 22' 9" 31" 6" 218
ETU120-40 120,000 40' 22' 9" 31" 6" 218
ETU125-40 125,000 40' 22' 9" 31" 6" 218
ETU130-40 130,000 40' 22' 9" 31" 6" 218
ETU140-40 140,000 40' 22' 9" 31" 6" 218
ETU150-40 150,000 40' 22' 9" 31" 6" 218
ETU160-40 160,000 40' 22' 9" 31" 6" 218
ETU175-40 175,000 40' 22' 9" 31" 6" 218
ETU125-50 125,000 50' 27' 9" 31" 6" 254
ETU130-50 130,000 50' 27' 9" 31" 6" 254
ETU140-50 140,000 50' 27' 9" 31" 6" 254
ETU150-50 150,000 50' 27' 9" 31" 6" 254
ETU160-50 160,000 50' 27' 9" 31" 6" 254
ETU175-50 175,000 50' 27' 9" 31" 6" 254
ETU180-50 180,000 50' 27' 9" 31" 6" 254
ETU200-50 200,000 50' 27' 9" 31" 6" 254
ETU225-50 225,000 50' 27' 9" 31" 6" 254
ETU250-50 125,000 50' 27' 9" 31" 6" 254
ETU180-60 180,000 60' 32' 9" 31" 6" 308
ETU200-60 200,000 60' 32' 9" 31" 6" 308
ETU225-60 225,000 60' 32' 9" 31" 6" 308
ETU250-60 250,000 60' 32' 9" 31" 6" 308
ETU180-70 180,000 70' 37' 9" 31" 6" 344
ETU200-70 200,000 70' 37' 9" 31" 6" 344
ETU225-70 225,000 70' 37' 9" 31" 6" 344
ETU250-70 250,000 70' 37' 9" 31" 6" 344
ETU180-80 180,000 80' 42' 9" 31" 6" 380
ETU200-80 200,000 80' 42' 9" 31" 6" 380
ETU225-80 225,000 80' 42' 9" 31" 6" 380
ETU250-80 250,000 80' 42' 9" 31" 6" 380

** Hanging weight is 80% of shipping weight

GAS TYPE  BURNER PRESSURE  MINIMUM SUPPLY PRESSURE MAXIMUM SUPPLY PRESSURE VOLTAGE  AMPS  IGNITION TYPE 
ETS/U40-140
NATURAL 3.5" W.C. 5" W.C. 14" W.C. 120 VAC 2.6 DIRECT SPARK
PROPANE 10" W.C. 11" W.C. 14" W.C. 60 HZ
ETS/U 150-250
NATURAL 3.5" W.C. 7" W.C. 14" W.C. 120 VAC 2.6 DIRECT SPARK
PROPANE 10" W.C. 12" W.C. 14" W.C. 60 HZ

NOTE: For all installations higher than 2000 ft. above sea level please consult the factory regarding recommended derating of heaters.

Clearances to Combustables
MODEL  SIDES  CEILING* BELOW  ENDS  Mounted at 45° angle 
          FRONT  REAR 
ETS/U 40 24" 6" 40" 15" 40" 12"
ETS/U 50 24" 6" 40" 15" 40" 12"
ETS/U 60 24" 6" 60" 15" 52" 12"
ETS/U 75 24" 6" 60" 15" 52" 12"
ETS/U 80 26" 6" 66" 15" 52" 12"
ETS/U 90 26" 6" 66" 15" 52" 12"
ETS/U 100 28" 6"  76" 15" 60" 12"
ETS/U 110 32" 6" 82" 20" 66" 12"
ETS/U 120 32" 6" 82" 20" 66" 12"
ETS/U 125 32" 6" 82" 20" 66" 12"
ETS/U 130 32" 6" 82" 20" 66" 12"
ETS/U 140 36" 6" 87" 20" 70" 12"
ETS/U 150 36" 6" 87" 20" 70" 12"
ETS/U 160 42" 6" 93" 20" 77" 12"
ETS/U 175 42" 6" 93" 20" 77" 12"
ETS/U 180 44" 6" 106" 20" 84" 12"
ETS/U 200 44" 6" 106" 20" 84" 12"
ETS/U 225 56" 6" 112" 20" 90" 18"
ETS/U 250 56" 6" 112" 20" 90" 18"

NOTE:

The clearances specified above must be maintained to combustibles and other materials that may be damaged by temperatures 90°F above ambient temperature. Clearances to combustibles are posted on the reflector near the control end of the heater. In locations used for storage of combustible materials where they may be stacked below the heater, NFPA 54 requires that the installer must post signs that will "specify the maximum permissible stacking height to maintain the required clearances from the heater to combustibles".

* When used indirect vented, clearance to CEILING must be: 12" for ETS/U (40-75) and 18" for ETS/U (80-250).  If optional corner and u-bend reflectors are not used, the clearance must be 18".  

** Maximum clearance below reduces by 50% once you are 25ft. downstream from the burner box. Note: Consult Factory if reduced clearances are required

VENTING REQUIREMENTS

Heaters can be common vented, vented or indirect vented. A vented installation must be vented outside the building with a flue pipe. An indirect vented installation requires a minimum ventilation flow of 4 CFM per 1000 BTU/hour of total installed heater capacity on natural gas by either gravity or power ventilation (4.18 CFM per 1000 BTU/hour on propane).

INSTALLATION REQUIREMENTS

Installation and service must be performed by a licensed contractor. The installation must conform to written Installation & Operating Instructions and local codes. In the absence of local codes, the installation must conform with the National Fuel Gas code, ANSI Z223.1 (latest edition also known as NFPA54) or CSA B149 (latest edition) installation codes. These codes are available from the National Fire Protection Association, Inc., Batterymarch Park, Quincy, MA 02269 or the Canadian Gas Association, 55 Scarsdale Road, Toronto, Ontario M3B 2R3, CANADA.

FOR YOUR SAFETY

Operate infrared heaters with proper care and observe all safety precautions. Carefully follow printed installation, operating and cleaning instructions furnished with the heater. Do not store gasoline or combustible products in the vicinity of the heater. Do not touch the heater or the tubes while the heater is in operation. Adequate ventilation must always be provided in accordance with codes.

Deflector Kit

The Deflector Kit (Part # 43482000) is used to reduce clearances to combustibles below the heater. Details on Deflector Kit (PDF)

Deflector Kit for Infrared Heater
click to enlarge
Side Reflector Kits

Side Reflector kits can be used to reduce the clearences to combustibles to the side of the heater. They are available as single side reflector or 2-side reflector. Side Reflector Installation info (PDF)

Side Reflector Kits
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Decorative Grille Kits

The heaters can be installed over non-combustible suspended ceilings with the use of aluminum decorative grilles. Decorative Grille Installation Instructions (PDF)

Decorative Grille Kits
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90 Degree Elbow Package Kit

Heaters can be installed in various configurations- L Shape, Z Shape etc. using 90 degree elbows. See I & O's for typical layouts. 90 Degree Elbow Accessory Package Kit (Part #43208010) comes with the required couplings and hardware. ETS Series Only

90 Degree Elbow Package Kit
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Corner Reflector Package Kit

Used with 90 Degree Elbow Package Kit. It maintains the clearences to combustibles above the reflector and maximizes the emitter tube temperature. The Corner Reflector Package Kit (part # 4334200) can be used only when the long axis of the heater is level and mounted in a horizontal position. ETS Series Only.

Corner Reflector Package Kit
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U-Bend Reflector Package Kit

Used with ETU series to maximize emitter tube temperatures and to reduce the clearences above thereflector. U-Bend Reflector Package Kit (Part #43488000) comes with the required couplings and hardware. ETU Series Only

U-Bend Reflector Package Kit
click to enlarge
Tube Heater Accessories

Accessories for common tube heater installations include vent caps, combustion air termination caps, thermostats, programmable digital thermostats, 24V Thermostats relay kits, Thermostat enclosure, Chain Kits, Second Stage Line Regulators, and manual cutoff valves. To learn more click Tube Heater Accessories (PDF).