Compare Generators Side-by-Side

Generator

Generator

4500 W

123.4 lbs

16 h

14 h

120

120/240

Briggs & Stratton OHV 4-stroke 224 cc

223 cc OHV 4-stroke, cast iron sleeve

Recoil, Electric, Remote

Recoil, Electric

3 years

3 years

4500 W

5000 W

16 h

3200 W

4500 W

CARB, EPA

CARB, EPA, ANSI/PGMA G300-2023

11675308148

840876140734

3700

4000

3200

4500

14

16

60

60

Briggs & Stratton OHV 4-stroke

223 cc OHV 4-stroke

cast iron

16

9

Digital

Low oil and overload protection, CO monitoring

Low oil and overload protection, CO monitoring

Recoil, Electric, Remote

Recoil, Electric

3

3

The Briggs & Stratton 30814 P4500 PowerSmart is a 3700-watt inverter generator built for users who need reliable backup power without the noise of traditional models. At 60 decibels, it runs quiet enough for residential neighborhoods and campgrounds, making it suitable for homeowners managing outages, campers extending trips, and outdoor enthusiasts who cannot tolerate generator noise. The 4500-watt peak output handles startup surges for larger appliances like air conditioning units or power tools, while the 3700-watt running capacity sustains continuous operation. With a 3.5-gallon fuel tank and 16-hour runtime at 25% load, users can power essential devices through a full night or longer without refueling. The inverter technology produces only 3% THD, which means laptops, smartphones, and other sensitive electronics charge safely without risk of voltage spikes or damage.

The Firman T04073 is a 4,000-watt tri-fuel generator that runs on gasoline, propane, or natural gas. On gasoline, it delivers 5,000 starting watts and 4,000 running watts, enough to power a refrigerator, microwave, and multiple household circuits simultaneously. On propane, output drops to 3,600 running watts, and on natural gas it falls to 3,200 running watts. This fuel flexibility means users can switch between sources based on availability and cost, a significant advantage during extended outages or in remote locations where one fuel type may be scarce. The T04073 targets homeowners, RV owners, and job site operators who need reliable backup power without the commitment to a single fuel source. Its 5-gallon tank runs for 14 hours at 25% load on gasoline, translating to roughly one week of emergency backup if you run it a few hours per day. The unit includes a wheel kit, making it easier to position despite its 123.4-pound weight.