Whole house generators are essential for ensuring uninterrupted power supply during outages, and the latest consumer reports highlight the top models available in 2025. These generators are evaluated based on performance, fuel efficiency, noise levels, and user satisfaction, providing consumers with a comprehensive guide to make informed decisions. From compact units to high-capacity systems, the best whole house generators cater to various needs and budgets, ensuring that homes remain powered even in the most challenging conditions.
Generac Guardian 24kW Home Standby Generator with 200 Amp Transfer Switch, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque
- Remote Monitoring Anywhere: With Generac 7210 24kW Mobile Link Wi-Fi connectivity, effortlessly track generator performance from anywhere. Stay updated on status and maintenance alerts, ensuring peace of mind even when you’re away
- Whole House Protection: Enjoy comprehensive coverage with Generac’s model 200 Amp SER transfer switch, designed for outdoor use with an aluminum enclosure. This ensures that your home remains powered and protected during power outages
- Long-Term Assurance: Backed by a 5-Year Limited Warranty, this automatic transfer switch delivers lasting performance and peace of mind, ensuring your investment in a Generac transfer switch will serve you well for years
- High-Quality 24kW Power: True Power Technology delivers clean, stable 24,000 watts with under 5% harmonic distortion. Generac’s low-maintenance engines run quieter and use less fuel for efficient, reliable home power
- Crafted for Excellence: Proudly engineered and assembled in the USA, our generators stand as testament to quality and craftsmanship. The purpose-built G-Force Engine is designed to handle the demands of usage, ensuring reliability and reduced maintenance
$7,109.00
SALE
−$400.00
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
- With 13,000 watts of power, the XP13000EH Dual Fuel generator will keep your whole home running during a storm or power outage
- DuroMax is the industry leader in Dual Fuel portable generator technology, with a full assortment ranging from digital inverters to generators that can power your entire home
- At the core of all our products resides a robust DuroMax engine. Designed for Power. Designed to Last
- The XP13000EH comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets (including a transfer switch-ready 50 amp outlet)
- Constructed with a heavy-duty all metal frame and power panel - No plastic parts
$1,099.00
SALE
−$250.00
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
- 9500 Running Watts and 12500 Peak Watts (Gasoline); 8500 Running Watts, 11200 Peak Watts (Propane); Remote Start With Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank With Fuel Gauge
- Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety
- Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown and Digital Hour Meter. VFT display gives you real time updates with the voltage output, frequency, and lifetime hours
- Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
- All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
$999.00
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
- Perfect as a backup power source for larger homes or a dependable source of portable power
- 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane); 12,000 peak watts, 9,500 running watts (natural gas)
- Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank
- Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve
- All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
$1,499.00
SALE
−$999.01
Westinghouse 28000 Peak Watt Home Backup Portable Generator, Remote Electric Start with Auto Choke, Transfer Switch Ready 30A & 50A Outlets, Gas Powered, CO Sensor,Blue
- 28,000 Peak Watts and 20,000 Running Watts; Easy-Access Start Panel with Remote Start Key Fob, Push-Button Electric Start, Engine Shut Off, and Battery Charging Port; Up to 11 Hours of Run Time at 50% load on a 17 Gallon Fuel Tank With Fuel Gauge
- Featuring Four GFCI 120V 5–20R Standard Household Outlets, Two 50A 120/240V 14-50R Outlets, Two 30A 120/240V L14-30R Outlets, One 30A 120V L5-30R Outlet, and ST Switch Outlet; All Outlets Have Rubber Covers for Added Safety
- Powered by a Heavy Duty 999cc Westinghouse V-Twin OHV Engine Featuring a Cast Iron Sleeve, Reinforced Steel Handles with Quick-Release Pins, Automatic Low Oil and Carbon Monoxide (CO) Shutdown, and Idle Control
- Plug-and-Play: Oil, Funnel, Setup Guide, and Manual to Get You Started Right Out of the Box; Digital Readout Displays Lifetime Run Hours, Volts, and Frequency
- All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed by 3-Year Limited Service, Labor, and Parts Coverage with Nationwide Customer Service Network
$2,999.99
Generac 7163 15kW Standby Generator with Wi-Fi
- Mobile Link Remote Monitoring. Allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC, for FREE. Easily access information, such as the current operating status and maintenance alerts
- The Ecogen is designed to interact with off-grid renewable energy applications. Capable of tying into an inverter and battery storage system to feed the energy source providing the cleanest running, low emission solution to recharging house batteries
- Extended Run Capability: This innovative oil circulation system extends the maintenance intervals by an unprecedented 5 times the industry standard by offering 500 hour maintenance intervals
- True Power Electrical Technology: Superior harmonics and sine wave form produce less than 5% Total Harmonic Distortion for utility quality power. This allows confident operation of sensitive electronic equipment, such as the variable speed HVAC systems
$5,229.00
Champion Power Equipment 100177 8.5-kW Home Standby Generator with 50-Amp Outdoor-Rated Automatic Transfer Switch
- Seamless 24/7 Power – No refueling, no manual operation, no extension cords needed and backed by our 10 year limited warranty
- Sub Zero Start – 24V starting system designed to operate down to -22º F
- Easy Access – Innovative gullwing enclosure for easy installation and service
- Quiet Power – Low tone muffler and sound dampening liner for residential operation
- ATS50 – 50 amp, 10 circuit, outdoor rated (NEMA 3R) automatic transfer switch
$3,249.00
20kW Standby Generator with 200amp TS
- Automatically restore power in just 10 seconds with the premium power of a Kohler generator that delivers advanced voltage and frequency regulation while still protecting valuable electronics
- Compatible to run on natural gas (18kW) or liquid propane (20kW) with simple switching between natural gas and liquid propane in the field
- Includes RXT 200-amp outdoor-rated, service entrance rated automatic transfer switch
- Powered by reliable KOHLER Command PRO engine, designed and tested for tough commercial applications; with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments. (Kohler CH1000 4-Cycle, 30.9 HP, V-2 999 CC engine)
- PowerBoost technology provides power to start large loads such as central air conditioners without dropping power to other appliances
$6,799.00
RCA 20,000-Watt Air-Cooled Whole House Generator (Dover Gray)
- Automatically restore power in just 10-seconds with the premium power of a KOHLER generator that delivers advanced voltage and frequency regulation while still protecting valuable electronics
- Compatible to run on natural gas (18kW) or liquid propane (20kW) with simple switching between natural gas and liquid propane in the field
- Powered by reliable KOHLER command pro engine, designed and tested for tough commercial applications, with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments, (KOHLER CH1000 4-cycle, 30.9 HP, V-2 999 CC engine)
- Power boost technology provides power to start large loads such as central air conditioners without dropping power to other appliances
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WEN 14,500-Watt 120V/240V Tri-Fuel Generator for Gas, Propane, and Natural Gas, Transfer-Switch Ready with Electric Start and Wheel Kit (TF1450)
- Switch between gasoline (14500 surge watts, 11500 running watts), propane (12500 surge watts, 10300 running watts), and natural gas (10500 surge watts, 8750 running watts) with a simple turn of the selection dial
- Operates at 120V and 240V, making it perfect for transfer switches and emergency backup
- Electric start powers the 500c 4-stroke OHV engine with the turn of a key
- 8.2-gallon tank provides up to 12 hours of half-load runtime
- Includes four 120V 5-20R outlet, a 120V/240V transfer-switch-ready NEMA L14-30R outlet, a 120V/240V transfer-switch-ready NEMA 14-50R outlet, a 12V DC automotive outlet, a bottle of oil, a 6-foot LPG connection hose, an NG quick-connect adapter, and a three-year limited warranty
$999.99
Last update on 2025-05-02 / Affiliate links / Images from Amazon Product Advertising API