Which generator delivers more running wattage, the EM6500S or the 4375?

Honda EM6500S delivers higher continuous output with 5500 running watts on gasoline.

Is the EM6500S quieter than the 4375?

Honda EM6500S is quieter at 50% load, measured at 67 dBA at 23 feet.

Which model is better suited for a whole home transfer switch interlock?

Honda EM6500S features a factory floating neutral ready for standard transfer switch hookup without modification.

ReaLoadREVIEWS

Home Backup & Portable Power Guide

ReaLoad Engineering Benchmark

Honda EM6500S vs. Predator 4375

Highlight Differences

Fuel Benchmark:

Elevation:

ReaLoad Technical Verdict & Engineering Dossier

Motor Surge & HVAC Starting

Honda EM6500S delivers 6,500W 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

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

Natural Gas Leader

Honda EM6500S

4,400 W running on NG (+4400 W lead)

Acoustic Winner

Honda EM6500S

64 dBA at 23ft (-8 dBA quieter)

Easiest Home Hookup

Honda EM6500S

Floating Neutral (Home Interlock Ready)

Best $/Running Watt

Predator 4375

$0.13/W ($449)

Technical Specification	Open-Frame Inverter Honda EM6500S $3,299Read Review	Open-Frame Inverter Predator 4375 $449Read Review
Running Watts Power Output	5,500 WBest	3,500 W
Peak Starting Surge Power Output	6,500 WBest	4,375 W
240V Output Amps Power Output	22.9 ABest	14.6 A
Sine Wave Purity Power Quality	<2.8% THD (Pure Sine)Best	<5% THD (Pure Sine)
Fuel Burn (25%) Fuel Consumption	0.55 GPH	0.25 GPHBest
Fuel Burn (50%) Fuel Consumption	0.90 GPH	0.50 GPHBest
Runtime (25% Load) Fuel Consumption	11.2 Hours	16 HoursBest
Fuel Tank Capacity Fuel Consumption	6.2 GallonsBest	4 Gallons
14-50R 50A Outlet Outlets & Receptacles	None (Use Adapter)Best	None (Use Adapter)Best
L14-30R 30A Outlet Outlets & Receptacles	1x NEMA L14-30R (30A)Best	1x NEMA L14-30R (30A)Best
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	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 dBABest	72 dBA
Chassis Dimensions Acoustics & Physical	41.6" L × 27.8" W × 28.3" H	23.3" L × 18.7" W × 19.3" H
Dry Weight Acoustics & Physical	230 lbs	105 lbsBest
Neutral Bonding NEC 2026 Hookup	Floating Neutral (Ready for Home Interlock)	Bonded Neutral (Unbonding Required for Home ATS)
Verified Street Price Cost & Value	$3,299.00	$449.00Best

ReaLoad Technical Verdict Dossier

Motor Inrush Starting Surge

The Honda EM6500S delivers 6500W peak surge compared to 4375W on the Predator 4375. Starting a 3.5-ton central air conditioner requires an electronic soft-starter to reduce compressor inrush below breaker trip thresholds.

72-Hour Outage Fuel Logistics

At 50% electrical load over a 72-hour power outage, EM6500S consumes about 65 gallons while 4375 burns 36 gallons. Homeowners need 13 sealed 5-gallon gasoline cans or utility natural gas.

Home Panel Interlock Safety

Honda EM6500S provides a factory floating neutral ready for standard 3-pole manual transfer switches. Follow NEC 250.20 safety grounding rules.

Head-to-Head Telemetry Comparison

Specification	Honda EM6500S	Predator 4375
Running Watts (Gasoline)	5500W	3500W
Peak Watts (Gasoline)	6500W	4375W
Operating Noise @ 23ft	67 dBA	74 dBA
Factory Neutral Status	Floating Neutral	Bonded Neutral
Dry Weight	230 lbs	105 lbs
Verified Street Price	$3299	$449