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ReaLoad Engineering Benchmark

DuroMax XP16000iHT vs. GENMAX GM10500XiT

Fuel Benchmark:
Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

DuroMax XP16000iHT delivers 16,000W 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
DuroMax XP16000iHT
10,800 W running on NG (+4000 W lead)
Acoustic Winner
DuroMax XP16000iHT
64 dBA at 23ft (-4 dBA quieter)
Easiest Home Hookup
GENMAX GM10500XiT
Floating Neutral (Home Interlock Ready)
Best $/Running Watt
GENMAX GM10500XiT
$0.19/W ($1,549)
Technical Specification
Enclosed Inverter
Open-Frame Inverter
Running Watts (gasoline at 0 ft)
Power Output
13,000 WBest
8,000 W
Peak Motor Starting Surge (gasoline)
Power Output
16,000 WBest
10,500 W
Continuous 240V Split-Phase Amps
Power Output
54.2 ABest
33.3 A
Sine Wave Purity (Total Harmonic Distortion)
Power Quality
<1.8% THD (Pure Sine)Best
<2.4% THD (Pure Sine)
Fuel Burn at 25% Load (GPH / Hr)
Fuel Consumption
0.64 GPH
0.51 GPHBest
Fuel Burn at 50% Load (GPH / Hr)
Fuel Consumption
1.03 GPH
0.91 GPHBest
Continuous Runtime on Tank at 25% Load
Fuel Consumption
16.5 HoursBest
13.5 Hours
Gasoline Fuel Tank Capacity
Fuel Consumption
10.5 GallonsBest
6.9 Gallons
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
2x NEMA 5-20R Duplex
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
68 dBA
Chassis Dimensions (L × W × H)
Acoustics & Physical
42" L × 31" W × 35" H
30.5" L × 22.4" W × 25.4" H
Dry Weight with Wheel Assembly
Acoustics & Physical
365 lbs
156.5 lbsBest
Factory Neutral Bonding (NEC 250.20)
NEC 2026 Hookup
Bonded Neutral (Unbonding Required for Home ATS)
Floating Neutral (Ready for Home Interlock)
Lowest Verified Street Price
Cost & Value
$4,499.00
$1,549.00Best