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ReaLoad Engineering Benchmark

Briggs & Stratton PowerProtect 13kW 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

Briggs & Stratton 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 (+500 W lead)
Acoustic Winner
Briggs & Stratton PowerProtect 13kW
63 dBA at 23ft (-0 dBA quieter)
Easiest Home Hookup
Briggs & Stratton PowerProtect 13kW
Floating Neutral (Home Interlock Ready)
Best $/Running Watt
Briggs & Stratton PowerProtect 13kW
$0.78/W ($3,899)
Technical Specification
Enclosed Inverter
Enclosed Inverter
Running Watts
Power Output
5,000 WBest
5,000 WBest
Peak Starting Surge
Power Output
6,250 WBest
6,250 WBest
240V Output Amps
Power Output
20.8 ABest
20.8 ABest
Sine Wave Purity
Power Quality
<3.2% THD (Pure Sine)
<2.8% THD (Pure Sine)Best
Fuel Burn (25%)
Fuel Consumption
1.05 GPHBest
1.15 GPH
Fuel Burn (50%)
Fuel Consumption
1.75 GPHBest
1.85 GPH
Runtime (25% Load)
Fuel Consumption
999 HoursBest
999 HoursBest
Fuel Tank Capacity
Fuel Consumption
0 GallonsBest
0 GallonsBest
14-50R 50A Outlet
Outlets & Receptacles
None (Use Adapter)Best
None (Use Adapter)Best
L14-30R 30A Outlet
Outlets & Receptacles
NoneBest
NoneBest
TT-30R RV Outlet
Outlets & Receptacles
NoneBest
NoneBest
5-20R Duplex Outlets
Outlets & Receptacles
2x NEMA 5-20R DuplexBest
2x NEMA 5-20R DuplexBest
Engine Start Method
Starting & Safety
Electric Push-Button & Recoil Pull
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
63 dBABest
63 dBABest
Chassis Dimensions
Acoustics & Physical
35" L × 26" W × 28" H
48" L × 26.2" W × 29" H
Dry Weight
Acoustics & Physical
365 lbsBest
410 lbs
Neutral Bonding
NEC 2026 Hookup
Floating Neutral (Ready for Home Interlock)
Floating Neutral (Ready for Home Interlock)
Verified Street Price
Cost & Value
$3,899.00Best
$4,699.00