Sterling HVAC GG Series GG090A1NSA11 Low Profile Unit Heater, 90,000 BTU/hr (Input), 73,800 BTU/hr (Output), Natural Gas, 115/120 V, 75 W (Motor), NPT, 1/2" Connection Size, 1 Phase

Sterling HVAC GG Series GG090A1NSA11 Low Profile Unit Heater, 90,000 BTU/hr (Input), 73,800 BTU/hr (Output), Natural Gas, 115/120 V, 75 W (Motor), NPT, 1/2" Connection Size, 1 Phase

Manufacturer: Sterling HVAC Products
Brand: STERLING
Part #: 387199
MPN: GG090A1NSA11
Customer Part #:
Min. Order Qty: 1
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Amperage Rating      :      6.4 A
BTU Rating      :      90,000 BTU/hr (Input), 73,800 BTU/hr (Output)
CFM Rating      :      1,100 CFM
Connection Size      :      1/2 "
Connection Type      :      NPT
Dimensions      :      23-9/16" H x 30" W x 26-3/8" D
Domestic/Import      :      Domestic
Efficiency      :      82% (Thermal)
Fan Size      :      16" Diam
Finish      :      Baked Enamel
Frequency Rating      :      60 Hz
Fuel Type      :      Natural Gas
HP Rating      :      1/10 HP
Ignition Type      :      Direct Spark
Material      :      20 Gauge Aluminized Steel (Heat Exchanger), 321 Stainless Steel (Burner Box), 20 Gauge Steel (Jacket Panels)
Model      :      GG090A1NSA11
Motor Type      :      ODP, SP
Mounting Type      :      Ceiling Mount, Wall Mount, Horizontal
Number of Fans      :      1
Number of Stages      :      1
Phase      :      1
Power Rating      :      75 W (Motor)
Rotational Speed      :      1,050 RPM
Vent Size      :      4 "
Voltage Rating      :      115/120 V

The Sterling GG Series low-profile gas-fired unit heater is a highly efficient and versatile heating solution, suitable for garages, workshops, and similar spaces requiring 90,000 BTU input. Combining tubular heat exchanger technology with a unique single-orifice burner system, this unit offers reliable performance in a compact design ideal for areas with limited space. It operates on natural gas but includes a conversion kit for propane field conversion.Designed for durability and ease of maintenance, the GG090A1NSA11 features a 20-gauge aluminized steel heat exchanger, a 321 stainless steel burner box, and a 20-gauge steel cabinet with a baked enamel finish. It utilizes direct spark ignition, power vented exhaust, and includes safety features like a high limit switch and air pressure switch. The control panel allows for easy access and can be field-converted for left-hand access.

Sterling HVAC Low Profile Unit Heater, Model: GG Series, 90,000 BTU/hr (Input), 73,800 BTU/hr (Output), Natural Gas, 115/120 V, 75 W (Motor), NPT, 1/2" Connection Size, 1 Phase, 82% (Thermal) Efficiency, Direct Spark, 4" Vent Size, Ceiling Mount, Wall Mount, Horizontal, 1,100 CFM, 16" Diam Fan Size, 1 Fan(s), ODP, SP, 1/10 HP, 1,050 RPM, 20 Gauge Aluminized Steel (Heat Exchanger), 321 Stainless Steel (Burner Box), 20 Gauge Steel (Jacket Panels), 23-9/16" H x 30" W x 26-3/8" D Dimensions, Baked Enamel Finish, Domestic, 60 Hz, 6.4 A, 1

  • Provides 90,000 BTU/hr input and 73,800 BTU/hr output with 82%+ thermal efficiency.
  • Features reliable direct spark ignition and a redundant single-stage gas valve.
  • Ships configured for natural gas; includes an LP conversion kit for field flexibility.
  • Low-profile design is ideal for applications with limited overhead space.
  • Constructed with a 20-gauge aluminized steel tubular heat exchanger and a durable baked enamel cabinet.
  • ETL Certified for residential garage/utility, commercial, and industrial applications.
  • Standard power venting; field convertible to separated combustion with optional kit (sold separately).
  • Includes a 10-year limited warranty on the heat exchanger.
  • Owner Manual https://s3.amazonaws.com/open-secret-production-public/data-studio/marcone/documents/hvac-heating-products-application-manual-3178-3178.pdf
  • Specification Sheet https://s3.amazonaws.com/open-secret-production-public/data-studio/marcone/documents/spec-sheet-3178-8023.pdf
  • Catalog https://s3.amazonaws.com/open-secret-production-public/data-studio/marcone/documents/sterling-gg-catalog-3178-8026.pdf
  • Installation and Operation Manual https://s3.amazonaws.com/open-secret-production-public/data-studio/marcone/documents/sterling-gg-installer-s-guide-3178-8028.pdf
  • Data Sheet https://s3.amazonaws.com/open-secret-production-public/data-studio/marcone/documents/sterling-specification-manual-3178-8025.pdf

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