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ReaLoad Engineering Benchmark

DuroMax XP16000iHT vs. Kohler 14RESA

Fuel Benchmark:
Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

Kohler 14RESA delivers 6,250W 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

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

Natural Gas Leader
Kohler 14RESA
12,000 W running on NG (+1200 W lead)
Acoustic Winner
Kohler 14RESA
63 dBA at 23ft (-1 dBA quieter)
Easiest Home Hookup
Kohler 14RESA
Floating Neutral (Home Interlock Ready)
Best $/Running Watt
DuroMax XP16000iHT
$0.35/W ($4,499)
Technical Specification
Enclosed Inverter
Enclosed Inverter
Running Watts
Power Output
13,000 WBest
5,000 W
Peak Starting Surge
Power Output
16,000 WBest
6,250 W
240V Output Amps
Power Output
54.2 ABest
20.8 A
Sine Wave Purity
Power Quality
<1.8% THD (Pure Sine)Best
<2.8% THD (Pure Sine)
Fuel Burn (25%)
Fuel Consumption
0.64 GPHBest
1.15 GPH
Fuel Burn (50%)
Fuel Consumption
1.03 GPHBest
1.85 GPH
Runtime (25% Load)
Fuel Consumption
16.5 Hours
999 HoursBest
Fuel Tank Capacity
Fuel Consumption
10.5 GallonsBest
0 Gallons
14-50R 50A Outlet
Outlets & Receptacles
1x NEMA 14-50R (50A)Best
None (Use Adapter)
L14-30R 30A Outlet
Outlets & Receptacles
1x NEMA L14-30R (30A)Best
None
TT-30R RV Outlet
Outlets & Receptacles
NoneBest
NoneBest
5-20R Duplex Outlets
Outlets & Receptacles
4x NEMA 5-20R DuplexBest
2x NEMA 5-20R Duplex
Engine Start Method
Starting & Safety
Wireless Remote, Electric Key & Recoil
Electric Push-Button & Recoil Pull
Carbon Monoxide Sensor
Starting & Safety
CO Watchdog / Shield Sensor (ANSI/PGMA G300)
CO Watchdog / Shield Sensor (ANSI/PGMA G300)
Noise Level (23ft)
Acoustics & Physical
64 dBA
63 dBABest
Chassis Dimensions
Acoustics & Physical
42" L × 31" W × 35" H
48" L × 26.2" W × 29" H
Dry Weight
Acoustics & Physical
365 lbsBest
410 lbs
Neutral Bonding
NEC 2026 Hookup
Bonded Neutral (Unbonding Required for Home ATS)
Floating Neutral (Ready for Home Interlock)
Verified Street Price
Cost & Value
$4,499.00Best
$4,699.00