Compare Generators Side-by-Side

Generator

Generator

4800 W

131.4 lbs

16.2 h

14.5 h

120

120/240

223 cc 4-stroke

322 cc OHV 4-stroke, cast iron sleeve.

Recoil

Recoil, Electric

3 years

3 years

4800 W

6850 W

14.5 h

4500 W

6250 W

9.5 h

N/A

EPA, ANSI/PGMA G300-2023

628963400837

840876155714

3600

5500

4500

6250

11.8

9.5

60

60

4-stroke

OHV 4-stroke

cast iron sleeve

14.5

Low oil and overload protection

Low oil and overload protection, CO monitoring

Oil, funnel, tool kit, propane hose, and battery

3

3

The Energizer eZV4800 is a 3,600-watt inverter generator built on a 223cc 4-stroke engine. This wattage class handles mid-range household loads: refrigerators, window air conditioners, power tools, and multiple devices simultaneously. The 78-pound weight and 18 x 17 x 21 inch footprint make it portable enough for job sites and camping trips, yet substantial enough to deliver real power without constant refueling. Gasoline fuel means no special storage concerns, and the inverter output protects laptops, phones, and televisions from voltage spikes.

The Firman WT05571 is a 5,500-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 6,850 starting watts and 5,500 running watts, enough to power a full home electrical panel during an outage or run multiple job site tools simultaneously. On propane, output drops to 6,250 starting and 5,000 running watts. On natural gas, it falls to 5,500 starting and 4,500 running watts. This fuel flexibility means users can switch between sources based on availability, cost, or storage preference without buying multiple generators. The tri-fuel capability makes this unit valuable for homeowners in regions with natural gas infrastructure, RV owners who can refill propane at any campground, and contractors who need to adapt to job site fuel availability. The 3 percent THD rating protects laptops, televisions, and other sensitive electronics from voltage spikes that damage circuits. At 67 decibels, the noise level sits between a typical conversation and heavy traffic, making it suitable for residential neighborhoods but audible enough that neighbors will know it is running.