Best Whole House Generators and Their Costs for Reliable Home Backup Power
Choosing the right whole house generator is essential for uninterrupted power during outages. This guide highlights top generators combining power, reliability, and features to meet different home needs. The table below summarizes key options reviewed in this article, helping you make an informed purchase decision aligned with your budget and power requirements.
| Generator | Power Output | Fuel Type | Key Features |
|---|---|---|---|
| Generac Guardian 22kW | 22,000 Watts | Natural Gas / Propane | WiFi enabled, 200 Amp transfer switch, aluminum enclosure |
| DuroMax XP13000EH Dual Fuel | 13,000 Watts | Gasoline & Propane | Electric start, dual fuel, transfer switch ready |
| Champion 22 kW aXis Standby Generator | 22,000 Watts (Propane), 19,800 Watts (Natural Gas) | Propane / Natural Gas | Fuel efficient, sound dampening, self-diagnostics |
| DuroStar DS13000MX Dual Fuel | 13,000 Watts | Gasoline & Propane | Remote electric start, CO alert, transfer switch ready |
| DuroMax XP12000HX Dual Fuel | 12,000 Watts | Gasoline & Propane | CO alert, all copper windings, electric start |
Generac Guardian 22kW Home Standby Generator
The Generac Guardian 22kW is a powerful whole house generator designed to provide comprehensive backup power with up to 22,000 watts. It comes equipped with a 200 Amp NEMA 3R smart transfer switch, crafted from durable aluminum for outdoor use. Its WiFi-enabled mobile monitoring lets you track performance and receive maintenance alerts remotely for added convenience.
This model features the G-Force engine ensuring reliable long-term use, supported by a 5-year limited warranty. Its smart design secures continuous power in outages, giving homeowners peace of mind through its automatic operation and durable build—ideal for protecting entire homes from disruptions.
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator
The DuroMax XP13000EH provides substantial backup power with 13,000-watt output and dual fuel capability, running on gasoline or propane. Ideal for whole home backup, this portable generator features an electric start and is transfer switch ready, making home integration simpler.
DuroMax is recognized in dual fuel generator technology, ensuring durability and power with a robust engine built for reliability. This unit supports emergency situations and recreational needs, suitable for storms and power outages where dependability is key.
Champion Power Equipment 22 kW aXis Standby Generator
The Champion 22 kW aXis generator provides efficient whole house power with up to 22,000 watts on propane and 19,800 watts on natural gas. It boasts up to 20% better fuel efficiency than competitors and uses advanced Power Line Carrier technology to reduce wiring and installation costs.
This model also features a quieter operation at 67 dBA with sound dampening and a low-tone muffler, plus automatic self-diagnostic tests for reliable performance. It is designed for ease of use, managing high-demand appliances smoothly while prolonging engine life.
DuroStar DS13000MX 13,000-Watt Dual Fuel Portable Generator
The DuroStar DS13000MX supplies a powerful 13,000 watts with dual fuel flexibility, operating on gasoline or propane for longer run times and cleaner emissions. It includes a remote electric start system and built-in carbon monoxide (CO) alert that automatically shuts the generator off if dangerous CO levels are detected.
Constructed for emergency power and portability, this generator is transfer switch ready, ensuring compatibility with whole house power setups. It balances power, safety, and ease of use in one package suited for home and outdoor scenarios.
DuroMax XP12000HX 12,000-Watt Dual Fuel Portable Generator
Delivering 12,000 watts, the DuroMax XP12000HX supports whole house backup with a powerful 457cc OHV engine, featuring all copper windings for durability. It offers dual fuel use—gasoline or propane—and includes a CO alert system for enhanced safety.
This electric start generator is built for long-lasting operation and offers fuel efficiency with propane. It suits homeowners looking for a versatile and safe generator to provide steady power during outages or remote situations.
Buying Guide for Whole House Generators
Selecting the right whole house generator involves several key considerations to balance performance, cost, and ease of operation:
Power Capacity
Assess your power requirements by calculating the wattage of essential appliances and systems. Whole house generators range from about 10,000 to 22,000 watts or more. Choose one that can reliably power your entire home or essential circuits depending on your needs.
Fuel Type and Efficiency
Generators typically use natural gas, propane, gasoline, or dual fuel options. Dual fuel units offer flexibility and longer runtime. Propane and natural gas models may provide cleaner and more cost-effective fueling solutions over gasoline, which requires more storage care.
Transfer Switch Integration
A transfer switch is crucial for safely connecting your generator to home wiring. Many whole house generators come with or are compatible with a transfer switch rated for 200 Amps, enabling seamless power transition during outages and reducing manual setup.
Installation and Maintenance
Consider professional installation costs and ongoing maintenance. Models with wifi monitoring and self-diagnostic features simplify upkeep and ensure prompt alerts for service needs, helping preserve reliability.
Noise Level
Generators vary in noise output. If noise is a concern, choose models with sound dampening technology operating below 70 dBA to maintain neighborhood peace and comfortable home environments.
Safety Features
Look for units equipped with safety mechanisms like carbon monoxide detectors and automatic shutdowns. This ensures safe operation in residential settings, protecting your family from harmful fumes.
Balancing these factors will help you invest in a generator that meets your whole house power needs efficiently, safely, and cost-effectively.