Table of Contents

5 sections 6 min read
Editor’s Review8.1/10 WG Score The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback – free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›

Our editorial team weighed Generac's published specifications and how it stacks up against similar products in the generators category. What stands out: Tri-Fuel Flexibility, Advanced CO Sensor, and Effortless Electric Start. Where it falls short: Heavy at 219 lbs and Not CA Legal. That puts it at 8.1/10 on our WG Score – an excellent, well-rounded option.

Sarah WattsReviewed bySarah Watts

When shopping for a Best Generac Generators, the single most important specification to get right is running watts. This number tells you how much continuous power the generator can supply to keep your appliances and tools running. Brand loyalty and price matter, but if you underestimate your running wattage needs, your generator will trip under load. Overestimate and you waste money on capacity you will never use. Understanding your total running wattage requirement is the first step to a successful purchase.

In this guide, we have reviewed 8 Best Generac Generators to help you match the right power output to your specific use case whether you are preparing for storm season, planning an RV adventure, or running tools on a remote worksite. For more brand comparisons, check out our Best Honda Generators For Home Backup guide.

Running Watts Explained

Running watts, also called rated watts, represent the continuous power a generator can deliver hour after hour. This is the number that determines what you can run simultaneously. Starting watts (surge watts) are the extra power needed for a few seconds when motors first engage. For example, a refrigerator may need 2,000 starting watts but only 600 running watts. If you plan to run a refrigerator, a sump pump, and a few lights, you need enough running watts to cover all their continuous draws plus headroom for starting surges.

To make this concrete, consider the Generac GP9500. It delivers 9,500 running watts and has a 7.5-gallon steel fuel tank that provides up to 9.5 hours of runtime at 50% load. At half capacity (4,750 watts), this generator can run a refrigerator (600W), a sump pump (1,000W), a window AC unit (1,200W), and several lights (400W) simultaneously for nearly 10 hours without refueling. That is the practical meaning of a 9,500-watt running capacity: real world appliance coverage during an extended outage.

1
Best Seller

PowerSmart 3000W Super Quiet Portable Inverter Generator with CO Alarm, Parallel Ready, 121.6cc OHV for RV Camping & Home Backup

PowerSmart
8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Extremely quiet at 59dB, ideal for camping and neighborhoods
  • Starts easily on first or second pull in any weather
  • Fuel efficient, often exceeds advertised runtime
  • Lightweight and portable for RV and travel use
  • Clean power safe for sensitive electronics

Cons

  • Manual recoil start requires physical effort
  • Small fuel tank limits full-load continuous runtime
  • Only two AC outlets may require a power strip for multiple devices
Detailed Review

The PowerSmart 3000W Portable Inverter Generator is a gas-powered powerhouse designed for RV camping, tailgating, outdoor adventures, and home emergency backup. With 3000W surge and 2600W rated output, it handles demanding loads like air conditioners, fridges, and power tools while delivering clean, stable sine wave power safe for laptops and TVs. Its compact 21.3 x 13.4 x 20-inch size and 52-pound weight make it perfect for users who need portable reliability without bulk.

Standout features include a 59dB noise rating at 23 feet for whisper-quiet performance, parallel readiness to double power by connecting two units, and a critical CO alarm that auto-shuts off if carbon monoxide levels rise. Real-world users praise its easy manual starts, often on the first or second pull, and impressive fuel efficiency, with some reporting runtimes beyond the stated 5 hours at 50% load on the 1.06-gallon tank. It powers coffee makers, space heaters, and oxygen machines effectively during travel or outages.

Build quality shines with a durable 121.6cc 4-stroke OHV engine featuring auto-throttle, low oil shutdown, and forced air-cooling for longevity. The red ABS housing resists wear, and inclusions like USB output and nationwide service support add value. At 52 pounds, it's easy to maneuver with a handle, though the recoil start demands some pull strength.

Potential drawbacks include the manual start mechanism, limited outlets, and shorter full-load runtime due to the tank size. One user noted it was louder than hoped close-up, but most find it unobtrusive.

Overall, this generator earns high marks for balancing power, quietness, safety, and portability. It's an excellent choice for campers, RVers, and backup power needs, backed by a 2-year warranty.

Key Specifications

Power: 3000W surge / 2600W rated, 120V single phase

Engine: 121.6cc 4-stroke OHV, manual start

Runtime: 5 hours at 50% load (1.06-gal tank)

Noise: 59dB at 23 feet

Features: CO alarm, parallel ready, USB output, low oil shutdown

Dimensions: 21.3"L x 13.4"W x 20"H, 52 lbs

2
Editor's Pick

Generac GP3300i 3300W Portable Inverter Generator - Quiet, Lightweight Gas PowerRush Tech for Camping, RV, Home Backup

Generac
8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Exceptionally quiet even at full load
  • Reliable starts and consistent clean power
  • Fuel-efficient with long runtime
  • Parallel-ready to double power output
  • Safe for electronics with low THD

Cons

  • Some units report minor fuel leaks requiring service
  • Can bog under simultaneous heavy loads like multiple high-watt tools
  • Specific starting technique needed for four-stroke engine
Detailed Review

The Generac GP3300i is a compact inverter generator offering 3300 starting watts and 2500 running watts of gasoline-powered electricity, ideal for campers, RVers, tailgaters, and homeowners facing outages. At just 59.5 pounds and 22.3 x 13.4 x 18.4 inches, it serves as a portable powerhouse for running fridges, lights, chargers, and small appliances without the bulk of traditional generators.

Standout features include PowerRush technology for superior starting power on demanding loads, TruePower for clean sine-wave-like output safe for electronics, and Economy Mode for fuel savings up to 16 hours on a 1.06-gallon tank. Users praise its whisper-quiet operation, effortless USB charging, and reliability in real-world tests like powering furnaces at altitude or multiple tools, though it handles best under 2000 watts continuously.

Build quality shines with a fully enclosed steel design, CO sensor for safety, electronic ignition, and LED status lights. Included oil, tools, and parallel capability add value, making it durable for outdoor adventures or backup needs.

Drawbacks include occasional fuel leaks in early units and sensitivity to overloads or high altitudes, where output drops. Starting requires feeling the compression stroke on the pull cord.

Overall, the GP3300i earns high marks for balancing power, quietness, and portability, making it a smart pick for versatile off-grid power if you follow setup instructions closely.

Key Specifications

Power: 3300W starting, 2500W running | Fuel: Gasoline, 1.06-gal tank | Runtime: Up to 16 hours

Outlets: Duplex, 30A twistlock, 2x USB | Weight: 59.5 lbs | Dimensions: 22.3"L x 13.4"W x 18.4"H

Features: PowerRush, CO sensor, Economy Mode, parallel-ready, super quiet | Warranty: 3 years limited

3
Limited Time

Generac iQ5200 DF 5200-Watt Dual Fuel Portable Inverter Generator Electric Start

8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Reliable electric start and auto-choke simplify operation
  • Clean inverter power protects sensitive electronics
  • Dual fuel flexibility improves fuel availability during outages
  • Compact enclosed case minimizes noise and protects components

Cons

  • Small 0.6 gallon tank limits continuous runtime
  • Only two AC outlets restrict simultaneous device connections
  • No parallel kit included for power expansion
Detailed Review

The Generac iQ5200 DF delivers 5200 starting watts and 3900 running watts as a dual-fuel portable inverter generator. It targets campers and homeowners seeking backup power without loud disruptions.

Electric start with included battery removes manual cranking, while the fuel selector allows seamless switching between gasoline and propane. The enclosed case keeps noise low and the CO sensor adds safety monitoring.

Build quality includes never-flat wheels, an integrated handle, and an LED display for output and fuel tracking. Two USB ports support device charging alongside the AC outlets.

Drawbacks include the modest tank size and limited outlet count. Overall the unit provides stable clean power suited to residential and recreational needs.

4
Top Rated

Generac GP9500 Tri-Fuel Portable Generator: 12,500 Starting Watts, Electric Start, CO Sensor, 9.5Hr Runtime

Generac
8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Versatile tri-fuel operation maximizes fuel availability and runtime
  • Advanced CO sensor ensures family safety during indoor misuse
  • Effortless electric start eliminates pull-start frustration
  • High power output handles whole-home essentials and tools
  • Durable construction withstands demanding professional use

Cons

  • Heavy 219-pound weight requires two people for transport
  • 49-state compliant, not approved for California use
  • Large dimensions limit storage in tight spaces
Detailed Review

The Generac GP9500 is a high-capacity tri-fuel portable generator designed for homeowners facing extended power outages, contractors powering remote job sites, and RV enthusiasts needing reliable off-grid electricity. With 12,500 starting watts and 9,500 running watts, it supports essential home appliances, tools, and recreational setups across gasoline, propane, or natural gas fuels.

Standout features include the simple fuel selector dial for effortless switching, electric start system with rechargeable battery for quick activation, and COsense technology that monitors carbon monoxide levels and shuts down automatically for safety. The 500cc OHV engine paired with a 7.5-gallon tank delivers up to 9.5 hours at 50% load on gas, while propane or natural gas extends runtime further, proving reliable in real-world emergencies and demanding applications.

Build quality shines with a reinforced steel tube cradle, weather-protected outlets, low-oil shutdown, and heavy-duty wheels with a fold-down handle for mobility over uneven terrain. As a Generac product, it benefits from decades of expertise in durable, innovative generators trusted by professionals.

Potential drawbacks include its substantial 219-pound weight, which may challenge solo handling, and 49-state compliance excluding California. Setup for natural gas requires the included kit, adding a minor step.

Overall, the GP9500 excels as a versatile powerhouse for critical backup needs, earning top marks for flexibility, safety, and performance in home, work, and play scenarios.

Key Specifications

Power Output: 12,500 starting watts / 9,500 running watts

Fuel Types: Gasoline, propane, natural gas

Engine: 500cc OHV, electric start

Runtime: Up to 9.5 hours at 50% load on gasoline

Dimensions: 27.5 x 27.1 x 27.6 inches

Weight: 219 pounds

Outlets: Multiple 120V AC, covered panel

5

Generac GP9500E Tri-Fuel Portable Generator: 12,500 Starting Watts, Electric Start, Gas/Propane/NG, Quiet, Long Runtime

8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Tri-fuel versatility prevents fuel shortages
  • High 12,500 starting watts powers heavy appliances
  • Electric start simplifies operation
  • Long runtime reduces refueling needs
  • Built-in safety with COsense monitoring

Cons

  • Larger size may limit portability in tight spaces
  • Requires proper setup for propane or natural gas connections
  • Higher fuel consumption at full load
Detailed Review

The Generac GP9500E Tri-Fuel Portable Generator is designed for homeowners facing power outages, contractors on jobsites, and RV enthusiasts needing dependable off-grid power. With 12,500 starting watts on gasoline (9,500 running watts), it handles demanding loads like refrigerators, AC units, and tools while offering flexibility across gas, propane, or natural gas fuels via a simple dial switch.

Standout features include electric start for effortless operation, a 500cc OHV engine with EFI technology for consistent performance, and COsense monitoring that automatically shuts down the unit if carbon monoxide levels rise. Real-world use shines in extended outages or remote work, delivering up to 10.5 hours at 50% load on its 7.5-gallon tank, making it a reliable choice for keeping lights on, devices charged, and projects moving.

Build quality impresses with a rugged steel-tube cradle, covered outlets for environmental protection, heavy-duty wheels, and a fuel gauge for easy monitoring. Its quiet operation and portability suit recreational use like camping or tailgating without excessive noise.

Drawbacks include its bulkier footprint compared to smaller inverters and the need for fuel line setups for propane or natural gas. Overall, the GP9500E excels in versatility and power, earning strong recommendation for those prioritizing multi-fuel reliability and safety.

Specifications

Power Output: 12,500 starting watts / 9,500 running watts (gas)

Fuel Types: Gasoline, propane, natural gas

Engine: 500cc Generac OHV with EFI

Runtime: Up to 10.5 hours at 50% load (gas)

Start Type: Electric with battery

Fuel Tank: 7.5 gallons

Compliance: 50-state approved

6

Generac iQ5200 5200W Dual-Fuel Inverter Generator - Quiet, Portable, CA Compliant

8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Dual-fuel capability offers flexibility and prevents unexpected shutdowns during extended use
  • Quiet operation at 62 dBA makes it suitable for residential neighborhoods and camping
  • Inverter technology delivers clean power safe for sensitive electronics and devices
  • Convenient electric start with included battery ensures hassle-free operation
  • Parallel-ready design allows power output to be doubled when needed
  • Long runtime up to 12 hours supports extended backup power scenarios

Cons

  • 3.8 out of 5 rating suggests some users have experienced reliability or durability concerns
  • 5200 watts may be insufficient for whole-home backup during peak demand periods
  • At approximately 99 pounds, portability may be challenging for users with limited mobility despite integrated handle
Detailed Review

The Generac iQ5200 is a 5200-watt dual-fuel inverter generator designed to deliver reliable portable power for home backup, outdoor recreation, and job site applications. This unit combines the convenience of electric start technology with the flexibility of dual-fuel operation, allowing users to switch between gasoline and propane depending on availability and preference.

The iQ5200 excels in noise reduction, operating at just 62 dBA at 25% load from 23 feet away. The fully enclosed case design minimizes sound disruption, making it suitable for residential neighborhoods, camping trips, and outdoor events where noise concerns are a priority. The inverter technology ensures ultra-clean, stable power output that safely powers sensitive electronics including laptops, smartphones, and power tools without risk of damage.

Key features include an intelligent LED display for monitoring power output and fuel consumption, two USB ports for device charging, and COsense technology that automatically stops the unit and alerts users to dangerous carbon monoxide levels. The parallel-ready capability allows two units to be connected for doubled power output when greater capacity is required. Economy mode enables users to reduce noise and fuel consumption when maximum power is not needed.

The generator weighs 99.2 pounds and features an integrated handle with never-flat wheels for improved portability. Electric start with an included battery eliminates the frustration of manual pull-cord starting. With a 6.9-gallon tank capacity, users can expect up to 12 hours of runtime at 50% load, providing extended backup power during outages or outdoor adventures.

While the 3.8 out of 5 rating indicates some users have experienced concerns, the Generac iQ5200 remains a solid choice for those seeking a quieter, dual-fuel portable generator with clean power output. The 3-year warranty and lifetime technical support provide confidence in the purchase decision.

Specifications Overview

Power Output: 5200 watts running power with inverter technology for clean, stable electricity suitable for sensitive electronics and tools.

Fuel System: Dual-fuel capability allows switching between gasoline and propane using the fuel source selector. 6.9-gallon tank capacity supports extended runtime up to 12 hours at 50% load.

Engine: 458cc 4-stroke OHV engine provides reliable performance and durability across various operating conditions.

Noise Level: 62 dBA at 25% load measured from 23 feet, making this generator one of the quieter options in its class.

Portability: Weighs 99.2 pounds with dimensions of 22.8 x 16.6 x 19.7 inches. Integrated handle and never-flat wheels facilitate transportation.

Outlets: Two 120V AC outlets, one L14-30R outlet, and two USB-A ports for charging devices.

Safety & Compliance: EPA and CARB certified. COsense technology provides automatic carbon monoxide detection and shutdown.

Who Should Buy

Home Backup Power: Homeowners seeking reliable backup power during outages will appreciate the 5200-watt capacity and extended runtime, though this unit may not power an entire home simultaneously. Best suited for powering essential appliances and devices selectively.

Outdoor Enthusiasts: Campers, RV users, and tailgaters benefit from the quiet operation, portability, and dual-fuel flexibility. The inverter technology ensures sensitive camping electronics and devices remain safe.

Job Site Professionals: Contractors and tradespeople value the clean power output for powering tools and charging batteries. The parallel-ready capability allows power scaling for larger projects.

Propane Users: Those with existing propane infrastructure appreciate the fuel-switching capability, which prevents shutdown and extends operational flexibility beyond gasoline availability.

7

Generac 3800-Watt Dual-Fuel Inverter Generator: Quiet, Portable Power for Camping, RV, Home Backup

8.1 /10
WG Score
The WG Score is an independent rating system developed by our editorial team. Scores range from 0 to 10 and are based on data collected across performance, value, reliability, and user feedback - free from any influence by manufacturers or sales partners. We encourage readers to share their experiences in the product reviews section.. Learn more ›
Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • Versatile dual-fuel system prevents downtime during fuel shortages
  • User-friendly LED display tracks power output, fuel, and alerts
  • Built-in USB ports and clean power support modern devices effortlessly
  • Lightweight inverter build enhances portability compared to traditional generators
  • Auto-choke and overload protection ensure reliable starts and safe use

Cons

  • Power output limits use with high-demand appliances like central AC
  • Propane tank sold separately, adding to setup needs
  • Fuel consumption display limited to gasoline mode
Detailed Review

The Generac 3,800-watt dual-fuel portable inverter generator is a versatile power solution designed for outdoor enthusiasts, RVers, campers, and homeowners facing outages. It combines gas and propane compatibility in a compact, lightweight inverter design, producing clean sine wave power perfect for sensitive electronics like laptops and medical devices. With its fully enclosed case, it operates quietly, making it suitable for campsites, tailgates, and residential neighborhoods without excessive disturbance.

Standout features include push-button electric start with an included battery, auto-choke for effortless ignition, and a fuel selector for seamless switching between fuels to avoid shutdowns. The intelligent LED display shows real-time power output and gas fuel levels, while Economy Mode lets users balance noise, fuel savings, and performance. COsense technology adds critical safety by monitoring carbon monoxide and automatically shutting down the unit. Parallel capability allows linking two units for doubled output, and built-in USB ports keep devices charged on the go. In real-world use, it excels at powering RVs, job sites, and home essentials during blackouts, with users praising its stability for tools and appliances.

Build quality shines through durable construction, never-flat wheels, and an integrated handle for easy transport. The inverter alternator reduces overall weight and size, enhancing portability over bulkier conventional generators. However, its 3,800-watt peak may not handle whole-home loads or heavy machinery alone, and propane requires a separate tank purchase.

Drawbacks include the moderate power ceiling for larger needs and fuel display limitations to gas only. Maintenance like oil checks remains essential for longevity. Overall, this generator earns solid marks for reliability and convenience, making it a smart pick for portable, safe power in diverse scenarios, though power-hungry users might need to parallel units.

Key Features

Power & Fuel: 3,800 starting watts on gas/propane; inverter for clean power.

Operation: Electric start, Economy Mode, fuel switch, LED display, COsense safety.

Ports: USB charging, parallel-ready, standard outlets.

Design: Quiet enclosure, wheels/handle for portability.

8

Generac GP6500 8,125W Portable Gas Generator with CO Detection & 10.5hr Runtime

Updated: Jul 29, 2026
Last update on Jul 29, 2026 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.
Pros & Cons

Pros

  • PowerRush Technology provides 40% more starting watts to run multiple appliances simultaneously
  • COsense carbon monoxide detection offers critical safety protection during emergencies
  • Exceptional 10.5-hour runtime minimizes refueling during extended outages
  • Rugged steel construction and reinforced cradle ensure long-term durability
  • Included extension cord and weather-resistant outlets provide immediate usability

Cons

  • Requires regular maintenance and fuel management for optimal performance
  • Gas-powered generators produce exhaust and cannot be safely operated indoors
  • No electric start feature, requiring manual pull-cord starting
Detailed Review

The Generac GP6500 is a versatile portable gas generator engineered to deliver reliable emergency backup power, recreational electricity, and job-site support. With 8,125 starting watts and 6,500 running watts, this unit combines raw power with practical safety features that set it apart in the portable generator market.

This generator is ideal for homeowners preparing for storm season and power outages, RV owners needing portable electricity for camping trips, and DIY enthusiasts powering tools for home improvement projects. The included 25-foot extension cord and weather-resistant outlet panel make setup immediate and straightforward. Heavy-duty never-flat wheels and a fold-down handle enable effortless transportation across any terrain.

The standout feature is Generac's proprietary PowerRush Advanced Technology, which delivers over 40% more starting capacity than comparable generators. This allows you to easily start and simultaneously run refrigerators, freezers, window air conditioners, sump pumps, lights, and other essential appliances during emergencies. The heavy-duty OHV engine is engineered for maximum durability, paired with a large-capacity steel fuel tank that delivers up to 10.5 hours of continuous power at 50% load.

Safety is paramount with the life-saving COsense carbon monoxide detection technology that continuously monitors CO levels and automatically shuts off the unit when dangerous levels are detected. This critical protection is essential if the generator is inadvertently operated indoors or in poorly ventilated spaces. Additional safeguards include automatic low-oil level shutdown to protect the engine from damage, and a digital hour meter that tracks operating time and reminds you when routine maintenance is due.

The reinforced 1.25-inch steel tube cradle provides exceptional structural strength, while the rugged construction ensures this generator delivers peak performance year after year. Whether you are preparing for emergency power outages, embarking on outdoor adventures, or tackling professional projects, the Generac GP6500 offers a complete, ready-to-use power solution backed by decades of American manufacturing expertise.

Best Generac Generators: Our Picks Against the Numbers

Best for Whole Home Backup: Generac GP9500 Tri-Fuel Portable Generator

With 9,500 running watts and 12,500 starting watts, the GP9500 sits at the top of the power spectrum. Its tri-fuel capability (gasoline, propane, natural gas) gives you fuel flexibility during long outages. The 9.5-hour runtime at 50% load means you can power essential circuits through the night without refueling. This is the model for homeowners who want maximum capacity and fuel options.

Skip this if: you need a portable unit for camping or tailgating. The GP9500 weighs over 200 pounds and is best suited for stationary home backup.

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Best Portable Inverter: Generac GP3300i Inverter Generator

At 3,300 running watts and 4,950 starting watts, the GP3300i is a lightweight inverter generator perfect for RVs, camping, and tailgating. It produces clean power safe for sensitive electronics and features economy mode to extend runtime. With USB ports and parallel ready capability, it offers versatile connectivity in a compact 60-pound package.

Skip this if: you need to power a whole house. The GP3300i is designed for recreational use and light backup, not for running central AC or a well pump.

View on Amazon.com

Best Value Home Backup: Generac GP6500 Portable Generator

The GP6500 delivers 6,500 running watts and 8,125 starting watts, making it a strong mid-range option for home emergency backup. It includes an extension cord and features PowerRush Technology for 40% more starting capacity. With 10.5 hours of runtime at 50% load, it can power a refrigerator, sump pump, and lights through a typical outage.

Skip this if: you need fuel flexibility. The GP6500 is gasoline only, unlike the tri-fuel models above.

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Other Things That Matter for Best Generac Generators

Fuel Type and Runtime

Gasoline is convenient and widely available, but propane and natural gas offer longer storage life and extended runtime. Tri-fuel models like the GP9500 give you the most options. For emergency backup, look for at least 8 hours of runtime at 50% load. The GP6500 offers 10.5 hours, while the GP9500 provides 9.5 hours on gasoline. Learn more about generator features on our site.

Noise Level and Inverter Technology

Inverter generators like the GP3300i operate at 53-75 dB, making them suitable for camping and residential areas. Conventional models like the GP6500 and GP9500 are louder (74-90 dB) but offer higher wattage at lower cost. If quiet operation is critical, prioritize an inverter model. For more on power levels, see our power based categories.

Portability and Safety Features

Weight and wheel design affect how easily you can move the generator. Lightweight inverter models under 100 lbs are ideal for camping, while heavy duty units over 150 lbs are better left in place. All modern Generac generators include COsense carbon monoxide detection for automatic shutdown in dangerous conditions. Low oil shutdown protects the engine. These safety features are essential for any home backup scenario.

Why Trust Our Reviews

Our methodology focuses on analyzing detailed product specifications, comparing technical capabilities across models, and synthesizing user feedback from verified purchasers. We evaluate running and starting watts, fuel types, runtime capabilities, noise levels, and safety features like carbon monoxide detection. Each product is assessed based on real world use cases such as emergency home backup, camping, and job site applications. We maintain editorial independence and disclose our affiliate relationships transparently. Our recommendations are based on objective criteria and aggregated user experiences rather than manufacturer claims. For more on our process, visit our generator types guide.

Frequently Asked Questions

What size generator do I need for my home?

Calculate your total running watts by adding the continuous power requirements of essential appliances. A typical home may need 5,000 to 7,000 running watts for basic circuits. For whole home backup with central AC, you may need 10,000+ running watts. The 8 models we reviewed range from 3,300 to 9,500 running watts to cover different needs.

Can I use a generator with a transfer switch?

Yes, many Best Generac Generators are transfer switch ready. A professional electrician must install the switch to safely connect to your home panel and prevent backfeeding. Check product specifications for compatibility. All Generac models in this roundup can be used with a transfer switch when properly installed.

How long can a generator run continuously?

Runtime depends on fuel tank size and load. At 50% load, most models run 8 to 12 hours. The GP6500 offers 10.5 hours, while the GP9500 provides 9.5 hours on gasoline. Propane and natural gas models can run longer because fuel does not degrade. Always refuel after the generator cools down to prevent fire hazards.

Are generators safe to use indoors?

No. Gasoline, propane, and natural gas generators produce carbon monoxide, a deadly odorless gas. Always operate them outdoors at least 20 feet from windows and doors. Modern Best Generac Generators include COsense detection that shuts down the unit if CO levels become dangerous. Never run a generator in a garage, basement, or enclosed space.

Quick Comparison: Side by Side

Products
Generac GP9500 Tri-Fuel Portable Generator: 12,500 Starting Watts, Electric Start, CO Sensor, 9.5Hr Runtime
Generac GP9500 Tri-Fuel P…
PowerSmart 3000W Super Quiet Portable Inverter Generator with CO Alarm, Parallel Ready, 121.6cc OHV for RV Camping & Home Backup
PowerSmart 3000W Super Qu…
Generac GP3300i 3300W Portable Inverter Generator - Quiet, Lightweight Gas PowerRush Tech for Camping, RV, Home Backup
Generac GP3300i 3300W Por…
Generac iQ5200 DF 5200-Watt Dual Fuel Portable Inverter Generator Electric Start
Generac iQ5200 DF 5200-Wa…
Generac GP9500E Tri-Fuel Portable Generator: 12,500 Starting Watts, Electric Start, Gas/Propane/NG, Quiet, Long Runtime
Generac GP9500E Tri-Fuel …
Generac iQ5200 5200W Dual-Fuel Inverter Generator - Quiet, Portable, CA Compliant
Generac iQ5200 5200W Dual…
Generac 3800-Watt Dual-Fuel Inverter Generator: Quiet, Portable Power for Camping, RV, Home Backup
Generac 3800-Watt Dual-Fu…
Generac GP6500 8,125W Portable Gas Generator with CO Detection & 10.5hr Runtime
Generac GP6500 8,125W Por…
Pros
  • – Tri-Fuel Flexibility.
  • – Advanced CO Sensor.
  • – Effortless Electric Start.
  • – Extremely Quiet at 59dB.
  • – Easy First/Second-Pull Start.
  • – Exceeds Advertised Runtime.
  • – Exceptionally Quiet at Full Load.
  • – Reliable Starts, Clean Power.
  • – Fuel-Efficient, Long Runtime.
  • – Reliable Electric Start & Auto-Choke.
  • – Clean Inverter Power.
  • – Dual Fuel Flexibility.
  • – Tri-Fuel Flexibility.
  • – 12,500 Starting Watts.
  • – Electric Start.
  • – Dual Fuel Flexibility.
  • – Quiet at 62dBA.
  • – Clean Inverter Power.
  • – Dual Fuel Flexibility.
  • – LED Display With Alerts.
  • – USB Ports, Clean Power.
  • – PowerRush, 40% More Starting Watts.
  • – COsense CO Detection.
  • – 10.5-Hour Runtime.
Cons
  • – Heavy at 219 lbs.
  • – Not CA Legal.
  • – Large, Limited Storage Space.
  • – Manual Recoil Start.
  • – Small Fuel Tank.
  • – Only Two AC Outlets.
  • – Rare Minor Fuel Leaks.
  • – May Bog Under Heavy Simultaneous Loads.
  • – Needs Specific Starting Technique.
  • – Small 0.6-Gallon Tank.
  • – Only Two AC Outlets.
  • – No Parallel Kit Included.
  • – Larger, Limited Portability.
  • – Needs Proper Fuel Connection Setup.
  • – Higher Fuel Consumption at Full Load.
  • – Mixed Reliability Ratings.
  • – May Be Insufficient for Whole-Home.
  • – Heavy at ~99 lbs.
  • – Not for Central AC.
  • – Propane Tank Sold Separately.
  • – Fuel Display Limited to Gasoline.
  • – Needs Regular Maintenance.
  • – Not for Indoor Use (Exhaust).
  • – No Electric Start.
Running Watts
9500
2600
2500
3900 Watts
9500
3900
3000
6500W
Peak Watts
12500
2500
3300
5200 Watts
12500
5200
3800
8125W
Fuel Type
Tri-Fuel (Gasoline/Propane/Natural Gas)
Gasoline
Gasoline
Gasoline, Liquefied Petroleum Gas
Tri-Fuel (Gasoline/Propane/Natural Gas)
Dual Fuel (gasoline/propane)
Dual Fuel (Gasoline/Propane)
Gasoline
Engine
500cc Internal Combustion Engine OHV
208cc 4-Stroke OHV
439cc 4-Stroke
Internal Combustion Engine
4-Stroke OHV
223 cc OHV 4-stroke
Internal Combustion Engine
OHV 4-Stroke
Tank Size
1.98 gal
0.28 gal
0.28 gal
0.6 Gallons
1.98 gal
0.85 gal
0.85 gal
N/A
Runtime
Up to 9.5 h @ 50% load
up to 5 hours
4.5 h @ 50% load
10 hours
Up to 10.5 h @ 50% load
9 h @ 50% load (Gasoline)
up to 15 hours
up to 10.5 hours at 50% load
Noise Level (dB)
74 dB
59 dB
50 - 58 dB
N/A
74 dB
52 dB
61 dB
N/A
Inverter Technology
No
Yes
Yes
Yes
No
Yes
Yes
N/A
Parallel Capable
No
Yes
Yes
N/A
No
No
Yes
N/A
Starting System
Electric Start
Recoil Start
Recoil
Electric
Electric Start
Recoil, Electric
Electric Start
N/A
Outlets & Ports
3 outlets/ports
2 outlets/ports
3 outlets/ports
2
3 outlets/ports
2x Duplex 120V 20A (5-20R) GFCI 1x 120V 30A (L5-30R)
4 outlets/ports
5 outlets: 120V AC
Weight
219 lbs
52 lbs
59.5 lbs
107 Pounds
227 lbs
107 lbs
107 lbs
182 lbs
Dimensions
27.5 x 27.1 x 27.6 in
21.3 x 13.4 x 20 in
22.3 x 13.4 x 18.4 in
37.2"L x 20.3"W x 22.5"H
27.2 x 26.94 x 27 in
24.6 x 20.3 x 22.5 in
37.2 x 20.3 x 22.4 in
27.2 x 27 x 26.5 in
RV Ready
No
Yes
Yes
N/A
Yes
No
Yes
N/A
Certifications
EPA, CARB Compliant
EPA, CARB, FCC
EPA, ANSI/PGMA G300-2023
N/A
EPA, CARB Compliant
CARB, EPA, ANSI/PGMA G300-2023
EPA, CARB, ANSI/PGMA G300
N/A
In the Box
Generac GP9500 tri-fuel portable generator, battery charger cable, natural gas conversion kit, oil funnel, owner's manual, propane hose, rechargeable battery, spark plug wrench
Wrench
Engine Oil, Oil Funnel, Owner's Manual, Tool Kit
Engine Oil, LP Hose, Oil Funner, battery, tool kit
Engine Oil, LP Hose, battery, handle & wheel kit, owner's manual
Oil, funnel, tool kit, propane hose, and battery
Engine Oil, LP Hose, Oil Funner, battery, tool kit
25-foot heavy-duty extension cord, oil funnel, owner's manual, spark plug wrench
Warranty
8-year limited warranty
2-year limited warranty
3-year limited warranty
2 Year Limited Commercial, 3 Year Limited Residential
2-year limited warranty
3 years
2-year limited warranty
6-year limited warranty