When you need a lot of power, the EF6600DE/D are the logical choice. They are capable of running most homes in an emergency. The EF6600 models have the same exterior dimensions as the equivalent EF5200 models, yet deliver 1400 watts more power.
For those who want the power and glory of electric starting*, there’s the push-button start EF6600DE with all the same features and specs as the manual-start EF6600D.
The EF6600DE/D models use Yamaha’s 357cc, 4-stroke, OHV engine to produce serious, full-time dual-voltage power to take on heavy-load tasks like well pumps, air conditioners, and refrigerators.
The EF6600DE adds the convenience of electric starting.*
Full power, full time 120/240 dual voltage which allows you to run multiple appliances that require 120 or 240 voltage making it highly versatile.
Provides 6.8 hours of continuous operation without refueling.
Full power, full time 120/240 dual voltage — Highly versatile.