Generac 22kW Guardian Generator Installation & Pricing in Minnesota, Wisconsin, Iowa and North Dakota
Whole-house backup for most Upper Midwest homes, sized and installed by Midwest, a Generac Prestige dealer, with the 12-Year Power Plus Warranty.
Model Overview
Meet the Generac 22kW Guardian, Model G0070420
The 22kW is the Guardian size we install most often for whole-house backup: it covers most homes up to about 3,000 square feet that run a single central air unit, and keeps the furnace, well pump and kitchen running through a winter outage. It draws on your natural gas or propane and takes over on its own seconds after the power fails.
Specifications
22kW Guardian Technical Specifications
Figures for the G0070420 as Generac publishes them on its product page and spec sheet, October 2026.
| Power output | 22kW on propane, 21kW on natural gas |
|---|---|
| Fuel source | Natural gas or liquid propane |
| Electrical service | 240 volts, single phase, 60 Hz; 100 amp main breaker |
| Engine | Generac G-Force 1000 (999cc, twin cylinder) |
| Sound level | 67 dB(A) running under normal load and 57 dB(A) during Quiet-Test, both measured 23 feet away |
| Footprint | 48 inches long by 25 wide by 29 high |
| Unit weight | 466 pounds |
| Fuel consumption, full load | Natural gas 327 cubic feet an hour; propane 3.71 gallons an hour |
| Control panel | Evolution controller |
| Housing | Aluminum with a RhinoCoat finish |
| Generac coverage | Five-year limited warranty from Generac |
Pricing
What Will a 22kW Guardian Cost You Installed?
18 to 22 kW · Average Home
$12,000 to $15,000
Installed
Whole-house backup for most homes under 3,000 sq ft with one furnace and central air. The price covers the generator, our own installation, the automatic transfer switch, the permit and the 12-Year Power Plus Warranty, and your free estimate sets your exact number.
Installation
Midwest Installs Your 22kW Guardian, Start to Finish
Load Check & Placement
A Master Electrician checks your panel and the loads you want covered, confirms the 22kW fits, and picks a spot for the pad clear of drifting snow.
Permits & Inspections
Midwest pulls the permit with a licensed electrician and schedules the inspections, then connects your gas or propane line and coordinates with your utility.
No Subcontractors
Our own Master Electricians and factory-trained technicians install it, and most installs wrap up in a single day once the crew arrives.
Financing
Financing Your 22kW Guardian
Financing Through Synchrony Bank
Prequalifying costs nothing and leaves your credit score untouched. Approval depends on credit. Compare financing options.
No Down Payment
Once approved, your credit line covers the generator and its installation, paid back over time.
12 Years of Full Coverage
Every Generac air-cooled unit Midwest installs carries the Power Plus Warranty: labor, travel, parts and major components for 12 years. Read the warranty terms.
Resources
Generac Manuals and Spec Sheets for the 22kW
Generac's PDFs for the G0070420, downloaded from Generac's website in October 2026 and kept here.
Reviews
Upper Midwest Homeowners Review Our Generac Installs
Thousands of 5-star reviews from Midwest customers.
Accessories
Pair Your 22kW Guardian With These Add-Ons
Generac Mobile Link
It comes with the 22kW Guardian: operating status, maintenance schedule and alerts on your phone, tablet or computer. Our technicians install the device and set up your account.
Generator Remote Monitoring →Cold-Weather Kit
Keeps the battery and oil from freezing, so your 22kW starts on the coldest night of the year.
Always Free Estimates & Proposals
Call (855) 374-7674 to Book a Free Generator Estimate
A Midwest Master Electrician checks whether the 22kW suits your home's loads and sends a free proposal with no obligation.