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ReaLoad Engineering Benchmark

Genmax GM6000iED vs. GENMAX GM7500aIED

Fuel Benchmark:
Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

GENMAX GM7500aIED delivers 7,500W 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

Genmax has factory floating neutral, safely compliant with 3-pole transfer switches and manual panel interlocks without ground loop faults.

Natural Gas Leader
GENMAX GM7500aIED
4,800 W running on NG (+4800 W lead)
Acoustic Winner
GENMAX GM7500aIED
61 dBA at 23ft (-1 dBA quieter)
Easiest Home Hookup
Genmax GM6000iED
Floating Neutral (Home Interlock Ready)
Best $/Running Watt
Genmax GM6000iED
$0.20/W ($999)
Technical Specification
Enclosed Inverter
Enclosed Inverter
Running Watts (gasoline at 0 ft)
Power Output
5,000 W
6,000 WBest
Peak Motor Starting Surge (gasoline)
Power Output
6,000 W
7,500 WBest
Continuous 240V Split-Phase Amps
Power Output
20.8 A
25 ABest
Sine Wave Purity (Total Harmonic Distortion)
Power Quality
<2.2% THD (Pure Sine)Best
<2.3% THD (Pure Sine)
Fuel Burn at 25% Load (GPH / Hr)
Fuel Consumption
0.32 GPH
0.31 GPHBest
Fuel Burn at 50% Load (GPH / Hr)
Fuel Consumption
0.58 GPH
0.50 GPHBest
Continuous Runtime on Tank at 25% Load
Fuel Consumption
11.5 Hours
13.5 HoursBest
Gasoline Fuel Tank Capacity
Fuel Consumption
3.8 Gallons
4.2 GallonsBest
14-50R Outlets (50A 120/240V Whole-House)
Outlets & Receptacles
None (Use Adapter)Best
None (Use Adapter)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
2x NEMA 5-20R DuplexBest
2x 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
62 dBA
61 dBABest
Chassis Dimensions (L × W × H)
Acoustics & Physical
26.2" L × 19.8" W × 22.4" H
26.4" L × 21.1" W × 23.8" H
Dry Weight with Wheel Assembly
Acoustics & Physical
118 lbsBest
141.1 lbs
Factory Neutral Bonding (NEC 250.20)
NEC 2026 Hookup
Floating Neutral (Ready for Home Interlock)
Floating Neutral (Ready for Home Interlock)
Lowest Verified Street Price
Cost & Value
$999.00Best
$1,199.00