When power outages strike, a reliable whole house generator backup can mean the difference between comfort and chaos. The best models provide seamless automatic start, enough capacity to run your essential appliances, and smart connectivity features. The Generac 22kW Whole Home Generator stands out as the overall top pick for its balanced performance and advanced cellular capabilities. For those seeking portability, the DuroStar DS13000MXT offers high wattage with tri-fuel flexibility, while the Generac 18kW provides a slightly smaller, yet still robust, alternative. The key tradeoffs often come down to size, fuel type, connectivity, and price. Keep reading for a detailed breakdown to help you choose the right backup power solution for your home.
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Key Takeaways
- Top models like the Generac 22kW excel in reliability and smart features, making them ideal for full home backup.
- Dual-fuel and tri-fuel options offer greater fuel flexibility, but often come with increased size and cost.
- Connectivity features, such as cellular capability, streamline maintenance and system monitoring, but may add to price.
- Portable generators can deliver high wattage and versatility but lack automatic startup and integration with home systems.
- Choosing the right size depends on your home’s power needs; oversizing increases cost, undersizing risks insufficient backup.
| Generac 22kW Whole Home Generator with Cellular Capability |  | Best Overall for Long-Term Reliability and Smart Monitoring | Power Output: 22kW | Connectivity: Cellular | Fuel Type: LP or natural gas | VIEW ON AMAZON | See Our Full Breakdown |
| DuroStar DS13000MXT 13,000-Watt Tri Fuel Portable Generator with Remote Electric Start |  | Best for Versatile Fuel and Emergency Flexibility | Power Output: 13,000 watts | Fuel Types: Gasoline, Propane, Natural Gas | Start Type: Remote Electric Start | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 18kW Whole Home Generator with Cellular Connectivity |  | Best for Cost-Effective Smart Home Backup | Power Output: 18kW | Connectivity: Cellular | Fuel Type: Natural gas or LP | VIEW ON AMAZON | See Our Full Breakdown |
| DuroStar DS13000MX 13,000-Watt Dual Fuel Portable Generator with Remote Electric Start |  | Best for Heavy-Duty Flexibility and Durability | Wattage: 13,000 watts | Fuel Type: Gasoline and Propane | Power Source: Fuel Powered | VIEW ON AMAZON | See Our Full Breakdown |
| Westinghouse 13500 Peak Watt Dual Fuel Portable Generator with Remote Electric Start |  | Best for Long Runtime and Heavy-Duty Backup | Peak Watts (Gasoline): 13500 | Running Watts (Gasoline): 10500 | Peak Watts (Propane): 12500 | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 22kW Whole Home Generator with Transfer Switch and Cellular Connectivity |  | Best Overall for Large Homes with Cold Climate Needs | Power Output: 22kW | Features: Transfer Switch, Cellular Connectivity, Remote Monitoring, Cold Climate Support | Warranty: 5 years | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 10kW Whole Home Generator with Transfer Switch & Cellular Connectivity |  | Best for Medium Homes Seeking Reliable Backup and Remote Monitoring | Power Output: 10kW | Features: Transfer Switch, Cellular Connectivity, Remote Monitoring, Cold Start Support | Warranty: 5 years | VIEW ON AMAZON | See Our Full Breakdown |
| Westinghouse 13500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start |  | Best for Versatile Power in Home, Travel, or Jobsite Situations | Peak Watts: 13,500 | Running Watts (Gasoline): 10,500 | Fuel Types: Gasoline, Propane, Natural Gas | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 26kW Whole Home Generator with Cellular Capability |  | Best for Large Homes with Cold Climate and High Power Demands | Power Output: 26kW | Connectivity: Cellular | Warranty: 5 years | VIEW ON AMAZON | See Our Full Breakdown |
| Generac 14kW Whole Home Generator with Cellular Capability | | Best for Smart Home Integration and Cost-Effective Backup | VIEW ON AMAZON | See Our Full Breakdown |
| whole house generator backup | Power Output |
|---|---|
| Generac 22kW Whole Home Genera | 22kW |
| DuroStar DS13000MXT 13,000-Wat | 13,000 watts |
| Generac 18kW Whole Home Genera | 18kW |
| DuroStar DS13000MX 13,000-Watt | — |
| Westinghouse 13500 Peak Watt D | — |
| Generac 22kW Whole Home Genera | 22kW |
| Generac 10kW Whole Home Genera | 10kW |
| Westinghouse 13500 Peak Watt T | — |
| Generac 26kW Whole Home Genera | 26kW |
| Generac 14kW Whole Home Genera | — |
More Details on Our Top Picks
Generac 22kW Whole Home Generator with Cellular Capability
This generator stands out for its robust 22kW power output, making it suitable for larger homes with multiple essential systems. Its cellular connectivity allows for remote monitoring via the Mobile Link app, providing peace of mind during outages. Compared to smaller models like the Generac 10kW, this unit offers significantly more capacity but comes with a higher initial investment. Its fuel efficiency and cold climate support ensure reliable operation year-round. The main tradeoff is the added cost and the need for a Mobile Link subscription to access full remote features. Ideal for homeowners seeking a high-capacity, low-maintenance backup system with smart features.
Pros:- High power output suitable for large homes
- Remote monitoring and control via cellular connectivity
- Fuel-efficient with low emissions
- Supports cold climate operation
Cons:- Requires Mobile Link premium subscription for full features
- Higher initial purchase price compared to smaller generators
Best for: Large households requiring dependable, whole-home backup with remote management.
Not ideal for: Homeowners with smaller budgets or limited internet infrastructure, due to higher cost and subscription needs.
- Power Output:22kW
- Connectivity:Cellular
- Fuel Type:LP or natural gas
- Warranty:5 years
- Monitoring:Mobile Link app
- Cold Start Support:Yes
Our verdict“This model is best suited for homeowners needing a reliable, high-capacity backup with smart monitoring features.”
DuroStar DS13000MXT 13,000-Watt Tri Fuel Portable Generator with Remote Electric Start
Compared with the Generac 22kW, the DuroStar DS13000MXT offers the advantage of tri-fuel capability, allowing use of gasoline, propane, or natural gas, which can be crucial during prolonged outages when fuel options vary. Its remote electric start adds convenience, especially during emergencies. However, its portability and weight make it less suited for permanent installation, and setup can be complex for novices. The generator’s high power output makes it a strong contender for whole-home backup, but its bulk and fuel requirements may be a drawback for those with limited storage or mobility concerns. This pick makes the most sense for users who value fuel flexibility and portable power in emergency scenarios.
Pros:- Tri-fuel capability for flexible fuel choice
- Remote electric start for quick operation
- High power output suitable for whole home backup
- Safety features like CO Alert
Cons:- Heavy and difficult to transport
- Complex setup may challenge beginners
- Large fuel tank requires frequent refilling during extended use
Best for: Homeowners needing a portable, versatile generator capable of handling whole-house loads during emergencies.
Not ideal for: Those seeking a permanently installed backup system or with limited space for transportation and fuel storage.
- Power Output:13,000 watts
- Fuel Types:Gasoline, Propane, Natural Gas
- Start Type:Remote Electric Start
- Outlets:Multiple including transfer switch-ready 50 amp
- CO Alert:Yes
Our verdict“Ideal for users who need portable, flexible power sources for emergency backup, accepting the tradeoff of weight and complexity.”
Generac 18kW Whole Home Generator with Cellular Connectivity
This 18kW generator offers a strong balance of power and smart features, making it suitable for medium-sized homes. Its cellular connectivity enables remote monitoring, similar to the 22kW model but at a lower capacity — ideal for homes that don’t require maximum output but still want reliable backup. Compared to the larger Generac 26kW, this unit is more affordable and consumes less fuel, yet it maintains compatibility with smart home systems and offers enhanced cold climate performance. The main tradeoff involves its slightly lower capacity, which may limit use in very large households or homes with high energy demands. This model fits well for those wanting a reliable generator with remote management at a more accessible price point.
Pros:- Reliable automatic backup for essential systems
- Cellular remote monitoring and control
- Optimized fuel use for cost savings
- Enhanced cold climate support
Cons:- Requires subscription for Mobile Link features
- Less capacity than larger models like the 26kW
Best for: Medium-sized homes seeking a smart, cost-efficient backup solution with decent capacity.
Not ideal for: Very large homes or those with high energy loads needing maximum power capacity.
- Power Output:18kW
- Connectivity:Cellular
- Fuel Type:Natural gas or LP
- Monitoring:Mobile Link app
- Cold Start Performance:Yes
Our verdict“Suitable for homeowners wanting smart, reliable backup without the higher cost of larger units.”
DuroStar DS13000MX 13,000-Watt Dual Fuel Portable Generator with Remote Electric Start
Compared to the Generac 18kW, this DuroStar model emphasizes durability and dual-fuel flexibility, making it a strong choice for those who need a tough portable backup. Its 13,000-watt peak power supports whole-home needs, and dual fuel operation extends fuel options during outages. The remote electric start enhances usability, but its weight and large fuel tank can complicate transport and extended use. This generator is better suited for users who prioritize rugged build quality and fuel versatility over compactness or ease of setup. Ideal for users who want a durable, portable backup with multiple fuel options and don’t mind the extra weight.
Pros:- Powerful 13,000-watt peak output
- Dual fuel capability for flexibility
- Remote electric start for convenience
- All-metal construction for durability
Cons:- Heavy and difficult to move
- Large fuel tank requires frequent refills
- Setup complexity may challenge beginners
Best for: Homeowners or contractors requiring a portable, durable generator capable of handling large loads in varied conditions.
Not ideal for: Those seeking a permanent, plug-in solution or with limited space for transportation and fuel storage.
- Wattage:13,000 watts
- Fuel Type:Gasoline and Propane
- Power Source:Fuel Powered
- Voltage:240 volts
- Output Wattage:13,000
- Additional Features:CO Sensor, Dual Fuel, Electric Start, Low Oil Shutdown
Our verdict“Best suited for rugged use and portable power needs, accepting the weight and setup challenges for durability and fuel choice.”
Westinghouse 13500 Peak Watt Dual Fuel Portable Generator with Remote Electric Start
Compared with the DuroStar 13,000-watt models, this Westinghouse generator offers a similar peak power but extends runtime up to 19 hours, making it ideal for prolonged outages. Its dual-fuel capability and remote electric start add to its appeal for versatile backup needs. The multiple outlets and safety features like low oil shutdown and CO detection make it user-friendly. However, its weight and setup complexity can be barriers for some users, and the absence of detailed weight specifications makes portability assessment difficult. This generator is a good choice for users prioritizing long-duration power supply over compactness. Best suited for those who need extended backup power with easy operation.
Pros:- Powerful 13500 peak watt capacity
- Long runtime up to 19 hours
- Remote electric start for convenience
- Multiple outlets and safety features
Cons:- Heavy and potentially difficult to transport
- No specific weight listed, affecting portability assessment
- Setup may be complex for inexperienced users
Best for: Homeowners wanting long-lasting backup power capable of running essential appliances for extended periods.
Not ideal for: Users with limited space or needing a lightweight, easily portable generator.
- Peak Watts (Gasoline):13500
- Running Watts (Gasoline):10500
- Peak Watts (Propane):12500
- Running Watts (Propane):9500
- Fuel Tank Capacity:9.5 gallons
- Run Time:up to 19 hours
- Engine:500cc Westinghouse 4-Stroke OHV
- Outlets:GFCI 120V 5–20R, 120V L14-30R, 120/240V 14–50R
- Start Type:Remote electric and recoil
Our verdict“Ideal for users seeking extended backup power with versatile fuel options and remote start, accepting the weight and setup complexity.”
Generac 22kW Whole Home Generator with Transfer Switch and Cellular Connectivity
This Generac 22kW model stands out as the best overall choice for homeowners seeking reliable, high-capacity backup power. Its automatic operation ensures your essential appliances stay powered during outages, and its remote monitoring via cellular connectivity adds convenience—especially compared to smaller models like the 14kW version. The inclusion of cold climate support means it performs well in harsher environments, making it ideal for northern regions. However, the need for a Mobile Link premium subscription for remote features can add ongoing costs, and the installation might be more involved and expensive. Overall, this generator provides a robust, reliable solution for large homes or those in cold climates craving peace of mind.
Pros:- High power output of 22kW suitable for large homes
- Automatic backup operation ensures seamless power during outages
- Remote monitoring and control via cellular app for convenience
- Reliable cold climate support for harsh weather conditions
Cons:- Requires a Mobile Link premium subscription for remote features
- Installation and maintenance costs can be substantial
Best for: Large households or properties in cold climates that prioritize capacity and remote management
Not ideal for: Homeowners with smaller spaces or tight budgets, as this model’s size and cost are significant
- Power Output:22kW
- Features:Transfer Switch, Cellular Connectivity, Remote Monitoring, Cold Climate Support
- Warranty:5 years
- Monitoring:Mobile Link app with premium subscription
Our verdict“This generator is best suited for large, cold climate homes needing robust, automated backup power with remote monitoring capabilities.”
Generac 10kW Whole Home Generator with Transfer Switch & Cellular Connectivity
This 10kW Generac model delivers reliable backup power for medium-sized homes, standing out by offering automatic operation and cellular remote monitoring—a step down from the 22kW option but still capable of powering essential circuits. Compared to larger units, it is more affordable and easier to install, making it an attractive choice for those wanting a balance of capacity and cost. Its cold start support enhances reliability in low temperatures. The tradeoff is that it might not cover all circuits in larger or more power-hungry homes, and the ongoing subscription fee could add up. This pick makes sense for homeowners needing dependable backup without the bulk of a 22kW system.
Pros:- Reliable automatic whole-home backup
- Remote monitoring via cellular connectivity
- Supports cold start for harsh weather
- More affordable and easier to install than larger models
Cons:- Limited capacity for larger homes or high-energy appliances
- Requires a subscription for full remote monitoring features
Best for: Medium-sized home owners wanting dependable backup with remote control features
Not ideal for: Large homes with high power demands or those seeking the highest capacity, as 10kW may fall short
- Power Output:10kW
- Features:Transfer Switch, Cellular Connectivity, Remote Monitoring, Cold Start Support
- Warranty:5 years
- Monitoring:Mobile Link app with real-time updates
Our verdict“This generator offers a balanced mix of capacity, remote management, and affordability for medium-sized homes.”
Westinghouse 13500 Peak Watt Tri-Fuel Portable Generator with Remote Electric Start
The Westinghouse WGen10500TFc is a standout for those needing versatile power options, capable of running on gasoline, propane, or natural gas. Its remote electric start adds convenience for portable use and emergencies, making it ideal for temporary backup or outdoor applications. Compared with whole home generators, its portability and tri-fuel flexibility make it more adaptable but less suited for continuous, full-home backup. Its heavy weight and size can limit mobility, and setup can be complex for first-time users. This model fits best where versatility and portability outweigh permanent installation needs.
Pros:- Tri-fuel operation for maximum flexibility
- Remote electric start for quick activation
- Long runtime of up to 19 hours
- Multiple safety outlets with rubber covers
Cons:- Heavy and large for easy transport
- Complex initial setup for new users
- Higher price point for advanced features
Best for: Homeowners needing portable, multi-fuel power for emergencies, travel, or job sites
Not ideal for: Those seeking a permanent, fully integrated backup system for large homes, as this is a portable unit
- Peak Watts:13,500
- Running Watts (Gasoline):10,500
- Fuel Types:Gasoline, Propane, Natural Gas
- Run Time:Up to 19 hours
- Engine:500cc 4-Stroke OHV
- Features:Remote start, fuel gauge, automatic low oil shutdown, CO sensor
Our verdict“This generator excels for portable, versatile power needs but isn’t designed for permanent whole-house backup systems.”
Generac 26kW Whole Home Generator with Cellular Capability
This 26kW generator from Generac offers exceptional capacity for large or demanding homes, with features that emphasize reliability and remote management. Its cellular connectivity and cold climate support set it apart from lower-capacity models like the 14kW, making it suitable for harsh environments where power stability is critical. Despite its impressive specs, the higher upfront cost and need for a cellular subscription might be a barrier for some. Compared to the 22kW model, it provides more power, but the size and installation complexity are larger. It’s a powerhouse choice for those with substantial backup needs and in colder regions.
Pros:- High power output of 26kW for large or demanding homes
- Remote monitoring via cellular connection
- Cold climate support for reliable operation in winter
- Fuel-efficient with electronic fuel and ignition control
Cons:- Higher upfront cost compared to smaller models
- Requires a cellular subscription for remote features
- Potentially more complex installation
Best for: Large homes or properties in extreme climates requiring high capacity and remote monitoring
Not ideal for: Small homes or budget-conscious buyers, due to higher initial costs
- Power Output:26kW
- Connectivity:Cellular
- Warranty:5 years
- Additional Features:Cold climate support, sloped roof & rear intake
Our verdict“Ideal for large or cold climate homes that require robust, managed backup power with high capacity.”
Generac 14kW Whole Home Generator with Cellular Capability
This 14kW Generac model offers a cost-effective solution for homeowners seeking automatic backup power with smart home compatibility. Its cellular connectivity allows remote monitoring, making it a good fit for those wanting basic automation and smart system integration, such as ecobee thermostats and PWRcell batteries. Compared with larger models like the 22kW, it may not support all appliances but provides sufficient power for essential circuits in smaller or medium homes. The need for a cellular subscription and potential higher cost than smaller portable units are considerations. This choice is well-suited for tech-savvy homeowners who want reliable, manageable backup power without the highest capacity.
Pros:- Automatic backup power for essential home functions
- Remote monitoring and control via cellular connectivity
- Smart home compatibility with ecobee and PWRcell
- Fuel-efficient with longer maintenance intervals
Cons:- Requires cellular subscription for remote access
- Limited capacity for large or high-energy homes
- More expensive than basic standalone generators
Best for: Homeowners with smart energy systems seeking reliable backup within a moderate budget
Not ideal for: Large households or those with high power demands, as 14kW may not cover all circuits
Our verdict“This generator appeals to tech-savvy, smaller home owners who prioritize smart home integration and remote management at a reasonable cost.”
How We Picked
The selection process focused on performance, ease of use, build quality, and value. I prioritized models with proven reliability, seamless automatic operation, and smart connectivity options that enhance convenience. Size and fuel type were also key considerations, ensuring options suited both small and large homes, with flexibility in fuel sources. Price was evaluated in relation to features offered, aiming to identify models that deliver the best bang for the buck while meeting critical backup needs. The ranking reflects a balance between these factors, highlighting models that provide dependable backup power with thoughtful features for different budgets and requirements.Factors to Consider When Choosing Whole House Generator Backup
Choosing a whole house generator backup involves several critical considerations beyond just wattage. Understanding these factors can help you avoid common pitfalls and select a system that truly meets your home’s needs and your budget. From fuel type to system size, each element impacts performance, longevity, and ongoing costs. Here are the key factors to keep in mind:Power Capacity and Size
Determining the right generator size is essential. Too small, and it won’t support all your critical appliances; too large, and you’ll pay more upfront and in maintenance. Calculate your essential load by listing appliances and systems you want to run during an outage. Most homeowners opt for a model rated between 10kW and 22kW, but larger homes or those with heavy power needs may require bigger units. Always consider future expansion or additional loads to avoid underpowered backup systems.
Fuel Type and Availability
Generators run on various fuels—gasoline, propane, natural gas, or dual/triple fuel options. Gasoline models are easier to find but require regular refueling and storage safety. Natural gas and propane are more convenient for continuous use, especially if your home already has a connection. Dual and tri-fuel generators offer flexibility, ensuring you can switch fuel sources if one becomes scarce. Evaluate your local fuel infrastructure and storage options before choosing a model.
Automatic Transfer Switch and Connectivity
An automatic transfer switch (ATS) is vital for seamless power transition during outages. It detects power loss and starts the generator without manual intervention. Connectivity features, like cellular monitoring, enable remote diagnostics, maintenance alerts, and system control, reducing downtime. While these features add convenience and peace of mind, they also increase the initial cost and complexity. Decide if these smart features align with your comfort level and budget.
Installation and Maintenance
Proper installation is crucial for safety, performance, and code compliance. Professional setup ensures correct placement, connection, and ventilation. Maintenance requirements vary; some models need regular oil changes, inspections, and system tests, while others have longer service intervals. Budget for ongoing upkeep, and consider if your home’s layout supports easy installation and access. A well-maintained generator will provide reliable power for years.
Price and Long-Term Value
While initial cost is a key factor, consider the long-term savings and value. Higher-priced models often feature better durability, more advanced technology, and greater fuel efficiency. Cheaper options may save money upfront but could lead to higher maintenance costs or shorter lifespan. Balance your budget with your expected needs, and prioritize models that offer reliable performance and necessary features to avoid costly replacements or repairs.
Frequently Asked Questions
How do I determine the right size generator for my home?
Calculating your home’s essential power needs involves listing all appliances and systems you want to operate during an outage, then summing their wattages. Many manufacturers provide load calculators to simplify this process. It’s wise to add a buffer—around 20-25%—to handle additional devices or future expansions. Consulting a professional electrician can help ensure your selected generator size matches your actual needs, preventing both over- and under-sizing.
Are dual-fuel generators worth the extra cost?
Dual-fuel generators offer significant flexibility by allowing you to switch between gasoline and propane, or natural gas, depending on availability. This can be especially valuable in emergencies when fuel supplies are uncertain. While they tend to be more expensive upfront, the ability to adapt to fuel shortages and potentially lower fuel costs over time can make them a cost-effective choice for many homeowners. Consider your local fuel options and storage capacity when evaluating their worth.
Is a smart, cellular-connected generator worth paying extra for?
Generators with cellular connectivity provide remote monitoring, alerts, and maintenance scheduling, which can reduce unexpected downtime and extend their lifespan. This convenience is particularly beneficial for larger or more complex systems where timely maintenance or troubleshooting matters. However, the added cost may not be necessary for everyone—smaller homes or those comfortable with manual checks might find simpler models sufficient. Assess your comfort with technology and your budget before choosing this feature.
Can I install a whole house generator myself?
Installing a whole house generator involves complex electrical work, proper siting, and adherence to local codes, making professional installation highly recommended. Incorrect setup can pose safety hazards, void warranties, or cause system failure. While some knowledgeable homeowners may handle minor tasks, hiring licensed electricians ensures the system is installed correctly, operates safely, and complies with regulations. Budget for installation costs when planning your purchase.
How often should I service my generator?
Routine maintenance depends on the model and usage, but most generators require an annual inspection and oil change, along with periodic system tests. Some models have extended service intervals, reducing upkeep but still require professional checks. Regular maintenance ensures your generator starts reliably when needed and prolongs its lifespan. Keep a schedule based on manufacturer recommendations, and consider subscribing to maintenance plans if available.
Conclusion
For those seeking the best overall performance with smart features, the Generac 22kW Whole Home Generator with Cellular Capability offers a balanced mix of reliability, connectivity, and capacity. Budget-conscious homeowners who want substantial power without breaking the bank might prefer the DuroStar DS13000MXT for its tri-fuel flexibility and affordability. If you’re new to backup power, the Generac 10kW provides a straightforward, easy-to-operate option with essential features. For larger homes or premium setups, the Generac 26kW represents a premium choice with higher capacity and advanced connectivity. Your ideal choice depends on your home size, budget, and desired level of automation—consider these factors carefully to make a confident decision.
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