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ReaLoad Engineering Benchmark

Westinghouse iGen11000DFc vs. Westinghouse WGen11500TFc

Fuel Benchmark:
Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

Westinghouse WGen11500TFc delivers 14,500W surge, sufficient for a 3.5-Ton central A/C with soft-starter. Inverters under 7,500W surge will trip breaker overcurrent protection on direct compressor starts.

72-Hour Fuel Logistics

At 50% load over 72 hours, continuous gasoline generators consume ~56 gallons (11x 5-gallon cans). Direct utility Natural Gas hookup eliminates fuel storage degradation, winter freezing, and gas station queues.

NEC 250.20 Neutral Bonding

Bonded neutral generators require terminal bridge disconnection before connecting to home service panels to prevent double-ground GFCI trips.

Natural Gas Leader
Westinghouse WGen11500TFc
9,500 W running on NG (+2300 W lead)
Acoustic Winner
Westinghouse iGen11000DFc
64 dBA at 23ft (-8 dBA quieter)
Easiest Home Hookup
Westinghouse iGen11000DFc
Bonded Neutral (Home Interlock Ready)
Best $/Running Watt
Westinghouse WGen11500TFc
$0.13/W ($1,499)
Technical Specification
Enclosed Inverter
Open-Frame Inverter
Running Watts (gasoline at 0 ft)
Power Output
9,000 W
11,500 WBest
Peak Motor Starting Surge (gasoline)
Power Output
11,000 W
14,500 WBest
Continuous 240V Split-Phase Amps
Power Output
37.5 A
47.9 ABest
Sine Wave Purity (Total Harmonic Distortion)
Power Quality
<2.1% THD (Pure Sine)Best
<2.9% THD (Pure Sine)
Fuel Burn at 25% Load (GPH / Hr)
Fuel Consumption
0.49 GPHBest
0.50 GPH
Fuel Burn at 50% Load (GPH / Hr)
Fuel Consumption
0.80 GPHBest
0.81 GPH
Continuous Runtime on Tank at 25% Load
Fuel Consumption
16 Hours
19 HoursBest
Gasoline Fuel Tank Capacity
Fuel Consumption
7.9 Gallons
9.5 GallonsBest
14-50R Outlets (50A 120/240V Whole-House)
Outlets & Receptacles
1x NEMA 14-50R (50A)Best
1x NEMA 14-50R (50A)Best
L14-30R Outlets (30A 120/240V Twist-Lock)
Outlets & Receptacles
1x NEMA L14-30R (30A)Best
1x NEMA L14-30R (30A)Best
TT-30R Outlets (30A 120V RV Travel Trailer)
Outlets & Receptacles
NoneBest
NoneBest
5-20R Duplex Outlets (20A 120V Household GFCI)
Outlets & Receptacles
4x NEMA 5-20R DuplexBest
4x NEMA 5-20R DuplexBest
Engine Starting Methods
Starting & Safety
Wireless Remote, Electric Key & Recoil
Wireless Remote, Electric Key & Recoil
Carbon Monoxide Auto-Shutoff Sensor
Starting & Safety
CO Watchdog / Shield Sensor (ANSI/PGMA G300)
CO Watchdog / Shield Sensor (ANSI/PGMA G300)
Noise Level at 23ft (25% Load)
Acoustics & Physical
64 dBABest
72 dBA
Chassis Dimensions (L × W × H)
Acoustics & Physical
34.2" L × 25.2" W × 28.6" H
31" L × 27" W × 29.2" H
Dry Weight with Wheel Assembly
Acoustics & Physical
189 lbsBest
236 lbs
Factory Neutral Bonding (NEC 250.20)
NEC 2026 Hookup
Bonded Neutral (Unbonding Required for Home ATS)
Bonded Neutral (Unbonding Required for Home ATS)
Lowest Verified Street Price
Cost & Value
$1,699.00
$1,499.00Best