CAEL GG-20KW Liquid-Cooled NG/LPG Standby Gas Generator – 20 kW

The CAEL GG-20KW is a 20 kW liquid-cooled standby gas generator for homes and small businesses. It runs on natural gas (NG) or LPG and keeps essential appliances, HVAC systems and electronics running during outages.

A compact steel-gray enclosure and low-noise operation suit residential sites. The liquid-cooled engine and high-capacity radiator are built for continuous operation, even above 50°C (122°F). It meets EPA Phase 3 and UL2200 standards.

Key Features

• 20 kW standby power output
• Single-phase: 18–20 kW rated (NG/LPG)
• Three-phase: 22.5–25 kVA rated (NG/LPG)

Liquid-Cooled 4-Cylinder Gas Engine

• LIFAN LF465QR, 4-stroke, 0.998 L displacement
• Electronic ignition (ECM) and 3600 rpm rated speed
• High-performance oil pump and large oil tank for long engine life

Quiet Operation

• Approx. 64 dB(A) at 7 m in exercise mode
• Approx. 72 dB(A) at 7 m under normal load
• Critical grade muffler mounted inside the unit to reduce noise and improve safety

Built for Extreme Conditions

• Liquid-cooled system with large-capacity radiator
• Can run continuously above 100 hours at ambient temperatures over 50°C (122°F)
• With weather kit, capable of operation down to -28.9°C (-20°F)

Smart Digital Controller

• LCD display for easy monitoring and operation
• Protection for high engine temperature, low oil pressure, over/under speed, over/under voltage and charging failure
• Crank cycle status and configurable voltage/frequency settings

Dual-Fuel Flexibility (NG / LPG)

• Works with natural gas or LPG
• Optimized fuel consumption at 50% and 100% load for both NG and LPG

Safety & Compliance

• Meets U.S. EPA Phase 3 emission regulations
• Meets UL2200 standard and ETL compliance requirements

Optional Automatic Transfer Switch (ATS)

• 200A rated current, 250VAC rated voltage
• Automatically transfers load to the generator during a power failure and back to utility power when restored

Specifications

Generator Output

• Rated power (single-phase, NG/LPG): 18 kW / 20 kW
• Max power (single-phase, NG/LPG): 19.8 kW / 22 kW
• Rated power (three-phase, NG/LPG): 22.5 kVA / 25 kVA
• Max power (three-phase, NG/LPG): 24.7 kVA / 27.5 kVA
• Voltage: 120/240 V (1-phase) or 120/208 V (3-phase)
• Frequency: 60 Hz
• Power factor: 1.0 (single-phase), 0.8 (three-phase)

Engine

• Model: LIFAN LF465QR
• Type: 4-cylinder, 4-stroke, gas engine
• Displacement: 0.998 L
• Compression ratio: 9.5:1
• Oil capacity: 4.0 L
• Starter: 12V electric, 0.8 kW
• Charging alternator: 14V / 70A

Alternator

• Type: synchronous, revolving field
• Rated power: 20 kW
• Insulation class: F (stator and rotor)
• Protection: IP23
• Coupling: direct

Cooling System

• Type: closed liquid-cooled
• Coolant capacity: 5 L
• Radiator fan: 7-blade, Ø380 mm
• Coolant temperature range: -25°C to 106°C

Fuel System

• Fuel: natural gas or LPG
• NG supply pressure: 1.2–2.7 kPa (5–11 in H₂O)
• LPG supply pressure: 1.7–2.7 kPa (7–11 in H₂O)
• Fuel pipe size: G 3/4", length < 33 ft

Fuel Consumption (approx.)

• NG @ 50% load: 178 ft³/h
• NG @ 100% load: 286 ft³/h
• LPG @ 50% load: 70.6 ft³/h
• LPG @ 100% load: 109.4 ft³/h

Dimensions & Weight

• Unit size (L × W × H): 54.17" × 31.89" × 37.8"
• Unit weight: 350 kg (772 lbs)