Sterling GG090N 90,000 BTU Low Profile Gas-Fired Unit Heater, 115v, 1-Stage, 0-4999 ft Altitude

Low Profile Unit Heaters

GG Series gas-fired unit heaters combine the latest tubular heat exchanger technologies with a unique single-orifice burner system for superior durability, reliability and performance. GG Series propeller units are available in sizes from 30 to 120 MBH and offer industry leading operating efficiencies in a compact low-profile design perfect for applications where space is limited. Units are ready for standard or separated combustion all in one unit. Optional combustion air inlet kits available for concentric venting.

Residential Garage Certified

All GG Series units are covered by a limited 10-year heat exchanger warranty and are ETL certified for residential garage installations. Units come standard with LP gas conversion kits and everything needed for for applications in dusty or damp environments.

Sales Literature

Technical Literature

Standard Features

• +82% Thermal Efficiency
• Residential Certification:  For Use as a Garage Utility Heater
• Standard or Separated Combustion All-In-One Units
• Single Orifice Burner System
• Direct Spark Ignition
• 20-Gauge Tubular Heat Exchangers
• 20-Gauge Jacket Panels with Baked Enamel Finish
• Power Vented
• OSHA Fan Guard
• Terminal Strip Low Voltage Wiring
• LP Gas Conversion Kit Included
• Easy Access Control Panel
• 321 Stainless Steel Burner Box
• 10-Year Heat Exchanger Warranty

Specifications

• Performance Data:
  
• Input - BTU/Hr (kW):  90,000 (26.4)
• Output - BTU/Hr (kW):  73,800 (21.6)
• Thermal Efficiency - %:  82
• Free Air Delivery - CFM (cu. m/s):  1,100 (.519)
• Air Temperature Rise - °F (°C):  60 (33)
• Full Load Amps at 120V:  6.4
• Minimum Circuit Ampacity at 120V:  7.5
  
• Motor Data:
• Motor HP:  1/10
• Motor (kW):  (0.075)
  
• Motor Type (Open Drip Proof):  Shaded Pole
  
• RPM:  1050
• Motor Amps at 115V:  4.2
• Dimensional Data - Inches (mm):
  
• Jacket Height:  22-5/8 (574)
  
• Overall Height:  23-9/16 (598)
• Overall Depth:  26-3/8 (670)
  
• Center Line Height of Flue*:  13-5/8 (346)
• Center Line Height of Air Intake:  8-5/8 (219)
• Fan Diameter:  16 (406)
  
• Discharge Opening Height:  21-3/16 (538)
  
• Vent Connection Diameter:  4 (102)
• Center Line of Flue Connection from Side:  7-3/4 (197)
• Center Line of Air Intake from Side:  3-1/2 (89) 
• Vent Size Requirements - Standard Combustion:
• Category III Horizontal - Inches (mm):  4 (102)
• Category I & III Vertical - Inches (mm):  4 (102)
• Vent Size Requirements - Separated Combustion:
  
• Exhaust Diameter** - Inches (mm):  5 (127)
• Intake Air Diameter - Inches (mm):  5 (127)
• Unit Weight - Lbs (kgs):  95 (43)
  
• Shipping Weight - Lbs (kgs):  110 (50)
  

*For all installations, the flue collar is included with the unit and should be field installed per the instructions included with the unit.

**4-5 inch reducer supplied where required.

Ratings shown are for unit installations at elevations between 0 and 2,000 feet (0 to 610m). For unit installations in USA above 2,000 feet (610m), the unit input must be field derated 4% for each 1,000 feet (305m) above sea level; refer to local codes, or in absence of local codes, refer to the latest edition of the National Fuel Gas Code, ANSI Standard Z223.1 (NFPA No. 54).