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ReaLoadREVIEWS
ReaLoad Engineering Benchmark

Generac GP9200E (7687) 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 (+4640 W lead)
Acoustic Winner
Kohler 14RESA
63 dBA at 23ft (-9.5 dBA quieter)
Easiest Home Hookup
Kohler 14RESA
Floating Neutral (Home Interlock Ready)
Best $/Running Watt
Generac GP9200E (7687)
$0.13/W ($1,199)
Technical Specification
Open-Frame Inverter
Generac GP9200E (7687)
$1,199Read Review
Enclosed Inverter
Kohler 14RESA
$4,699Read Review
Running Watts
Power Output
9,200 WBest
5,000 W
Peak Starting Surge
Power Output
11,500 WBest
6,250 W
240V Output Amps
Power Output
38.3 ABest
20.8 A
Sine Wave Purity
Power Quality
<2.9% THD (Pure Sine)
<2.8% THD (Pure Sine)Best
Fuel Burn (25%)
Fuel Consumption
0.53 GPHBest
1.15 GPH
Fuel Burn (50%)
Fuel Consumption
0.85 GPHBest
1.85 GPH
Runtime (25% Load)
Fuel Consumption
15 Hours
999 HoursBest
Fuel Tank Capacity
Fuel Consumption
7.9 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
72.5 dBA
63 dBABest
Chassis Dimensions
Acoustics & Physical
27.2" L × 27" W × 26.5" H
48" L × 26.2" W × 29" H
Dry Weight
Acoustics & Physical
211 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
$1,199.00Best
$4,699.00