When power outages strike, a dependable whole house generator can keep your home running smoothly. The best models deliver enough power to run essential appliances and systems, but choosing the right one involves balancing capacity, fuel type, and budget. The Westinghouse 28000 Peak Watt Tri-Fuel Generator stands out for its robust power and versatility, while the Westinghouse 14500 Peak Watt Tri-Fuel offers a more budget-friendly solution for moderate needs. The main tradeoffs involve size, fuel options, and price—larger, more powerful units tend to cost more and require more space. Continue reading for a detailed breakdown of these options and what to consider when selecting your backup power solution.

Key Takeaways

  • The top picks balance peak power output with ease of use, making them suitable for different home sizes and budgets.
  • Tri-fuel options provide flexibility with fuel choices, but often come at a higher initial cost than dual-fuel models.
  • Remote electric start and built-in sensors like CO alarms enhance safety and convenience, especially for larger units.
  • Size and installation complexity vary widely; larger models may require professional setup, increasing overall cost.
  • Cost-effectiveness depends heavily on your home’s power needs; bigger isn’t always better if your load is moderate.

Our Top Best Whole House Generators For Residential Backup Picks

Westinghouse 12500 Watt Dual Fuel Portable Generator with Remote Electric StartWestinghouse 12500 Watt Dual Fuel Portable Generator with Remote Electric StartBest Overall for Versatile Backup PowerPeak Watts: 12500Running Watts: 9500 (Gasoline), 8500 (Propane)Fuel Type: Gasoline and PropaneVIEW LATEST PRICESee Our Full Breakdown
Westinghouse 28000 Peak Watt Tri-Fuel Portable Generator with Remote Electric StartWestinghouse 28000 Peak Watt Tri-Fuel Portable Generator with Remote Electric StartBest for Large Homes and Job SitesPeak Watts (Gasoline): 28,000Running Watts (Gasoline): 20,000Peak Watts (Propane): 25,200VIEW LATEST PRICESee Our Full Breakdown
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable GeneratorDuroMax XP13000EH 13,000-Watt Dual Fuel Portable GeneratorBest for Heavy-Duty Home BackupPower Output: 13,000 wattsFuel Type: Gas & PropaneStart Type: ElectricVIEW LATEST PRICESee Our Full Breakdown
DuroMax XP15000HXT 15,000 Watt Tri Fuel Portable Home Power Backup Generator with CO AlertDuroMax XP15000HXT 15,000 Watt Tri Fuel Portable Home Power Backup Generator with CO AlertBest for Maximum Power and Safety FeaturesPower Output: 15,000 wattsFuel Types: Gasoline, Propane, Natural GasEngine: 670cc single-cylinder, oil cooledVIEW LATEST PRICESee Our Full Breakdown
Westinghouse 14500 Peak Watt Tri-Fuel Portable Generator with Remote Electric StartWestinghouse 14500 Peak Watt Tri-Fuel Portable Generator with Remote Electric StartBest for Versatile Home Backup on a BudgetPeak Watts: 14,500Running Watts (gasoline): 11,500Fuel Tank Capacity: 9.5 gallonsVIEW LATEST PRICESee Our Full Breakdown
Westinghouse 18000 Peak Watt Dual Fuel Portable Generator with Remote Start and CO SensorWestinghouse 18000 Peak Watt Dual Fuel Portable Generator with Remote Start and CO SensorBest for High Power Residential Backup with Safety FeaturesPeak Watts (Gas): 18,000Running Watts (Gas): 14,500Fuel Tank Capacity: 10.5 gallonsVIEW LATEST PRICESee Our Full Breakdown

More Details on Our Top Picks

  1. Westinghouse 12500 Watt Dual Fuel Portable Generator with Remote Electric Start

    Westinghouse 12500 Watt Dual Fuel Portable Generator with Remote Electric Start

    Best Overall for Versatile Backup Power

    View Latest Price

    This generator stands out for its dual fuel capability, allowing operation on both gasoline and propane, which adds flexibility during extended outages. Its remote electric start offers convenience, especially when you need quick power without manual effort. Compared to the larger Westinghouse 28000 Peak Watt Tri-Fuel Generator, it’s more portable and easier to set up for typical residential use, though it doesn’t match the peak wattage. The 12,500 peak watts and 9,500 running watts make it suitable for powering essential circuits in most homes. The main tradeoff is its weight, which isn’t specified but could be heavy for some users, and the price may be on the higher side given its features. Ideal for homeowners seeking reliable, versatile backup power with easy remote operation.

    Pros:
    • Powerful dual fuel operation with up to 12,500 peak watts
    • Remote start for quick, convenient activation
    • Long runtime of up to 12 hours on a full tank
    Cons:
    • Weight not specified, potentially heavy to transport
    • Price range not provided, possibly costly for some buyers

    Best for: Families needing a powerful, dual fuel generator with remote start for straightforward outage management

    Not ideal for: Small property owners or those on a tight budget who don’t require high wattage or remote features

    • Peak Watts:12500
    • Running Watts:9500 (Gasoline), 8500 (Propane)
    • Fuel Type:Gasoline and Propane
    • Engine:457cc 4-Stroke OHV
    • Run Time:Up to 12 hours
    • Fuel Tank Capacity:6.6 gallons
    • Outlets:GFCI 120V 5–20R, Transfer Switch Ready 120V L14-30R, RV Ready 120/240V 14–50R

    Bottom line: This generator is best suited for homeowners who want reliable power with flexible fuel options and remote control convenience.

  2. Westinghouse 28000 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start

    Westinghouse 28000 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start

    Best for Large Homes and Job Sites

    View Latest Price

    This tri-fuel generator offers unmatched versatility, supporting gasoline, propane, and natural gas, making it ideal for those with high power demands or needing fuel flexibility. Its impressive 28,000 peak watts surpass most portable options, including the DuroMax XP15000HXT, providing enough energy to run entire homes or heavy-duty equipment. The digital readout, low THD, and multiple outlets make it suitable for sensitive electronics and complex setups. However, its size and weight mean it’s less portable, and the initial setup can be daunting for users unfamiliar with large generators. The high power output also requires careful handling and professional installation in many cases. This pick caters to serious homeowners or contractors who need maximum power and fuel flexibility in a portable form.

    Pros:
    • Unmatched peak wattage of 28,000 supports entire home loads
    • Tri-fuel capability for maximum fuel options
    • Supports sensitive electronics with low THD
    Cons:
    • Heavy and bulky, difficult to transport
    • Complex setup may be intimidating for beginners
    • Higher initial cost due to size and features

    Best for: Large households or construction sites requiring high wattage and multi-fuel flexibility

    Not ideal for: Small residential properties or users seeking a lightweight, easy-to-move generator

    • Peak Watts (Gasoline):28,000
    • Running Watts (Gasoline):20,000
    • Peak Watts (Propane):25,200
    • Running Watts (Propane):18,000
    • Peak Watts (Natural Gas):22,400
    • Running Watts (Natural Gas):16,000
    • Tank Capacity:17.2 gallons
    • Run Time at 25% Load:up to 13 hours

    Bottom line: This generator is best suited for users who need maximum power and fuel versatility at a large scale or on job sites.

  3. DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator

    DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator

    Best for Heavy-Duty Home Backup

    View Latest Price

    The DuroMax XP13000EH offers solid power for whole-home backup, capable of delivering 13,000 watts, which is sufficient to run most essential appliances during outages. Its dual fuel feature increases flexibility, and the electric start simplifies operation compared to manual recoil models. When compared to the Westinghouse 12500DF, it provides a slightly higher wattage, making it a better choice for larger homes or more demanding loads. The rugged construction, weather-resistant features, and versatile outlets, including a transfer switch-ready 50-amp outlet, make it suitable for severe weather conditions. The main tradeoffs involve its weight and noise level during operation, which could be disruptive in residential settings. This generator is ideal for those who prioritize durability and high power output in a portable package.

    Pros:
    • Powerful enough to run entire home during outages
    • Dual fuel capability for fuel flexibility
    • Heavy-duty, weather-resistant construction
    Cons:
    • Heavy and potentially difficult to transport
    • May generate significant noise during operation
    • Higher price point for its size and features

    Best for: Homeowners seeking a durable, high-capacity generator for severe weather or extended outages

    Not ideal for: Users with limited mobility or those seeking a lightweight, quiet backup solution

    • Power Output:13,000 watts
    • Fuel Type:Gas & Propane
    • Start Type:Electric
    • Outlets:Multiple including transfer switch-ready 50 amp
    • Construction:Heavy-duty all metal frame

    Bottom line: This generator is best suited for homeowners prioritizing durability and high power in a robust, portable unit.

  4. DuroMax XP15000HXT 15,000 Watt Tri Fuel Portable Home Power Backup Generator with CO Alert

    DuroMax XP15000HXT 15,000 Watt Tri Fuel Portable Home Power Backup Generator with CO Alert

    Best for Maximum Power and Safety Features

    View Latest Price

    The DuroMax XP15000HXT delivers a commanding 15,000 watts, with tri-fuel support for maximum fuel versatility, making it ideal for large homes or critical systems. Its push-button and remote start options provide convenience, while the digital control panel offers real-time monitoring for better management. It also includes a CO Alert system, a feature that many models lack but is vital for safety during extended operation indoors. Compared to the Westinghouse 12500DF, it offers significantly higher wattage and safety features, though this comes with added weight and complexity. The setup can be challenging for first-time users, but the safety and power benefits justify the effort. This generator is best for those seeking top-tier power combined with safety features for whole-house backup.

    Pros:
    • Powerful 15,000-watt tri-fuel capability
    • Remote and push-button start for convenience
    • Built-in CO Alert for enhanced safety
    Cons:
    • Heavy and large, difficult to move
    • Higher price point for advanced features
    • Complex setup for inexperienced users

    Best for: Large households or emergency preparedness enthusiasts who require maximum power and integrated safety features

    Not ideal for: Small homes or users seeking a lightweight, simple backup solution

    • Power Output:15,000 watts
    • Fuel Types:Gasoline, Propane, Natural Gas
    • Engine:670cc single-cylinder, oil cooled
    • Start Type:Push button and remote start
    • CO Alert:Yes, automatic shutdown
    • Hose Size for Natural Gas:3/4 inch

    Bottom line: This generator is best suited for those who need maximum power with integrated safety for comprehensive home backup.

  5. Westinghouse 14500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start

    Westinghouse 14500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start

    Best for Versatile Home Backup on a Budget

    View Latest Price

    This generator stands out for its tri-fuel capability, offering flexibility to switch between gasoline, propane, and natural gas. It provides up to 14,500 peak watts, making it suitable for essential home circuits, especially if you want to avoid expensive fuel storage. Compared with larger models like the 18000-watt dual fuel, it’s more compact and easier to manage, but it delivers slightly less power overall. Its lightweight design and simple operation make it a good entry point for homeowners new to backup generators, though it might fall short for larger households with more power needs.

    Pros:
    • Tri-fuel versatility for fuel flexibility
    • Compact and portable design
    • Reliable 14,500-watt output for essential circuits
    • Easy to operate with remote start
    Cons:
    • Limited peak wattage for large appliances
    • Not as powerful as bigger dual-fuel models
    • Setup may be complex for beginners

    Best for: Small to medium homes needing flexible fuel options without requiring maximum wattage.

    Not ideal for: Large households or those with high power demands, as it may not support all appliances simultaneously.

    • Peak Watts:14,500
    • Running Watts (gasoline):11,500
    • Fuel Tank Capacity:9.5 gallons
    • Runtime:Up to 19 hours (gasoline)
    • Engine:550cc 4-Stroke OHV
    • Start Type:Remote Electric Start

    Bottom line: This generator is ideal for homeowners seeking a versatile, reliable backup for essential circuits without the bulk of larger units.

  6. Westinghouse 18000 Peak Watt Dual Fuel Portable Generator with Remote Start and CO Sensor

    Westinghouse 18000 Peak Watt Dual Fuel Portable Generator with Remote Start and CO Sensor

    Best for High Power Residential Backup with Safety Features

    View Latest Price

    This model offers a significant jump in power, with up to 18,000 peak watts on gas and 16,000 on propane, making it suitable for whole-house backup in larger homes. Its remote start adds convenience, while the CO sensor and transfer switch readiness boost safety and ease of use during outages. Compared with the tri-fuel 14500-watt model, it provides more capacity for running multiple appliances simultaneously, but at the cost of increased size and noise. It’s a solid choice for those prioritizing power and safety, though it’s heavier and might be overkill for smaller households with modest needs.

    Pros:
    • High wattage capacity for whole house
    • Remote start for convenience
    • Built-in CO sensor enhances safety
    • Multiple outlets including transfer switch readiness
    Cons:
    • Heavy and bulky for frequent transport
    • Noise at 74 dBA may be disruptive
    • Higher cost compared to smaller models

    Best for: Homes with high power demands needing robust, safe backup capabilities, especially where remote operation is valued.

    Not ideal for: Users with limited storage space or those seeking a lightweight, portable unit for occasional use.

    • Peak Watts (Gas):18,000
    • Running Watts (Gas):14,500
    • Fuel Tank Capacity:10.5 gallons
    • Runtime:Up to 16 hours
    • Engine:713cc Westinghouse V-Twin OHV
    • Noise Level:74 dBA

    Bottom line: This generator suits larger households or those with high power needs who also prioritize safety and remote operation.

best whole house generators for residential backup

How We Picked

The products in this roundup were selected based on their power capacity, fuel versatility, user safety features, ease of operation, and overall value. We prioritized models that offer reliable performance during extended outages and included safety features like CO sensors and remote start capabilities. The ranking reflects a combination of technical specs, customer reviews, and how well each generator balances cost against practical features. Our goal was to identify options suited for a range of home sizes and budgets, from basic backup needs to premium, high-capacity systems.

Factors to Consider When Choosing Best Whole House Generators For Residential Backup

Choosing the best whole house generator involves understanding several key factors that affect performance, safety, and cost. Beyond just peak wattage, consider how much power your home needs during an outage and whether the generator can handle startup surges. Fuel type, size, and installation requirements also play critical roles. Making an informed decision means weighing these factors against your household’s specific needs and budget constraints.

Power Capacity and Home Size

The primary goal is to match your home’s essential power needs with a generator’s capacity. A small unit might only keep the refrigerator and lights running, while a larger one can sustain HVAC, sump pumps, and other critical systems. Oversizing increases costs and installation complexity, while undersizing leaves you vulnerable during outages. Carefully calculate your household’s power requirements before choosing a model.

Fuel Type and Availability

Most whole house generators operate on natural gas, propane, or diesel. Natural gas is convenient if you already have a supply line, but it depends on municipal gas availability. Propane tanks are portable but require refilling, and diesel offers high efficiency but can be harder to store safely. The right fuel choice hinges on your local infrastructure, storage space, and long-term maintenance considerations.

Installation and Size

Size and placement are critical factors, especially for larger units. Some models are portable and can be manually set up, while others are permanently installed and require professional setup. Consider your available space, local permitting, and whether you prefer a system that can be moved or needs a fixed location. Proper installation ensures safety and optimal performance, but it can significantly affect your total investment.

Safety and Convenience Features

Features like remote start, automatic transfer switches, and built-in CO sensors improve safety and usability. Remote operation is particularly handy during bad weather or for larger units, saving you from manual startup. CO alarms are essential for indoor safety, especially with larger, enclosed units. Prioritizing these features can enhance your peace of mind during prolonged outages.

Cost and Long-Term Value

Initial purchase price is just one part of the total cost. Consider installation expenses, fuel consumption, and maintenance over the generator’s lifespan. Investing in a slightly higher-priced, reliable model may save money in the long run by avoiding breakdowns or frequent repairs. Balance your budget with your home’s needs to find the best long-term value.

Frequently Asked Questions

How much power do I need for my whole house?

To determine your home’s power needs, start by listing essential appliances and systems you want to run during an outage. Most households require between 7,000 and 20,000 watts for basic operation, but larger homes or those with high-energy systems may need more. Calculating your total starting and running wattage helps you select a generator that can handle your load without overpaying for excess capacity.

Is a tri-fuel generator worth the extra cost?

Tri-fuel generators offer greater flexibility by operating on natural gas, propane, or diesel, which can be a significant advantage during emergencies when fuel sources vary. However, they tend to be more expensive upfront and may require more maintenance. If your fuel supply options are limited or you value versatility, a tri-fuel model makes sense; otherwise, a dual-fuel unit might suffice for most needs.

How loud are these generators, and will I need noise mitigation?

Most large, whole house generators produce noise levels between 60 and 75 decibels, roughly comparable to a loud conversation or lawn mower. If your home is close to neighbors or you prefer quiet operation, consider models with noise-reduction features or install sound-attenuating enclosures. Managing noise levels is especially important in residential areas to maintain good neighbor relations and comply with local noise ordinances.

Do I need professional installation for a whole house generator?

Yes, most permanent generators require professional installation due to electrical wiring, fuel connections, and local code compliance. Proper setup ensures safety, reliable operation, and warranty validity. Portable models are easier to install yourself but still benefit from consultation with a professional if you’re unsure about placement or connections. Investing in professional installation minimizes risks and maximizes performance during outages.

How often should I perform maintenance on my generator?

Regular maintenance is essential for reliable performance, typically including oil changes, filter replacements, and system checks. Most manufacturers recommend an annual service or running the generator at least once a month for testing. Keeping up with maintenance extends the lifespan of your investment and ensures readiness when you need it most, especially after long periods of inactivity.

Conclusion

For most homeowners, the Westinghouse 28000 Peak Watt Tri-Fuel Generator offers the best combination of power, flexibility, and safety features, making it the ideal overall choice. Budget-conscious buyers or those with moderate needs might prefer the Westinghouse 14500 Peak Watt Tri-Fuel for its affordability and reliable performance. Those seeking premium capacity and advanced features should consider high-end models like the Westinghouse 18000 Peak Watt Dual Fuel Generator. Beginners or small homes benefit from portable options with simple operation, while larger households should prioritize models with automatic transfer switches and safety sensors. Carefully match your needs with these options to ensure a reliable backup during power outages.

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