Guardian Series 22 kW/19.5 kW Air Cooled Home Standby Generator with Wi-Fi and Whole Home 200 Amp Transfer Switch

The Guardian 22kW home standby generator is one of the most powerful air-cooled standby units available today, engineered to deliver complete home backup power. Ideal for residential use, it provides whole-home protection through a 200-amp smart transfer switch and operates quietly, making it well suited to neighborhoods. Below you’ll find full features, specifications, and buying guidance so you can order with total confidence.

Built for reliable, hands-off backup power, this generator pairs heavy-duty engineering with smart remote monitoring. It’s a premium, well-built choice trusted by homeowners across the US, UK, Canada, and Australia who want their whole house protected during an outage.

Key Features of the Guardian 22kW Home Standby Generator

This Guardian 22kW home standby generator is built around true whole-home backup — powerful, quiet, and smart. From the G-Force engine to free remote monitoring, every feature is designed for dependable, low-maintenance protection.

• 22 kW output (19.5 kW on LP) for whole-home backup power in most homes
• Mobile Link™ remote monitoring included free, so you can check status from anywhere
• 200-amp smart transfer switch for seamless, automatic whole-home protection
• True Power™ Technology delivering clean power with less than 5% total harmonic distortion
• G-Force engine built for heavy-duty use with reliable power and low maintenance

Smart Monitoring and Clean Power

Mobile Link™ remote monitoring is included at no extra charge, letting you check operating status and maintenance alerts in real time from your smartphone, tablet, or PC — anywhere in the world. You can even connect your account to an authorized service dealer for proactive support. True Power™ Technology keeps total harmonic distortion under 5%, so sensitive electronics and appliances run smoothly and safely on backup power.

Specifications and Durable Build

The Guardian 22kW home standby generator is protected by a RhinoCoat™ finish — corrosion-resistant aluminum with a durable powder coating built to withstand all weather. The Evolution™ controller features a multilingual LCD display to monitor battery status and track maintenance intervals, and Quiet-Test™ mode runs the weekly self-test at lower RPM for quieter operation and reduced fuel use. It’s backed by a 5-year limited warranty and 24/7/365 customer support. For full specifications, see the official Generac specification page Browse our full Portable Generators collection to compare backup power options.

Quiet, Low-Maintenance Operation

Designed with neighbors in mind, Quiet-Test™ mode runs the routine self-test at a lower RPM, so it consumes less fuel and stays quieter than many competing brands. The durable G-Force engine needs less maintenance than typical standby engines, and the weatherproof RhinoCoat™ enclosure shrugs off the elements. The result is dependable protection that runs quietly in the background and asks little of you.

Why Choose the Guardian 22kW Home Standby Generator

Homeowners compare a lot of standby generators before they buy, and this one stands out for the right reasons. It delivers serious whole-home output with a smart 200-amp switch, clean True Power™ output for electronics, and free Mobile Link™ monitoring you can check from anywhere. The durable build, quiet operation, 5-year warranty, and round-the-clock support make it a confident, no-regrets purchase for whole-home peace of mind.

Your order ships quickly with tracked delivery, and our support team is ready to help before and after your purchase. Questions about sizing, the transfer switch, or installation? Reach out and we’ll guide you to the right choice. For portable backup or job-site power, you can also compare it with the Champion 15000W Portable Generator.

Note that home standby generators require professional installation and a permanent fuel connection. To keep it performing its best, schedule routine professional maintenance, monitor alerts through Mobile Link™, and keep the enclosure clear of debris. A little routine care goes a long way toward years of dependable whole-home protection.

Protect your entire home with the Guardian 22kW home standby generator today. It’s one of the best values in our backup-power lineup, and popular models can sell out fast — add it to your cart now and take advantage of fast shipping.