Generac 22kW Guardian Generator Installation & Pricing in Ohio
Whole-house backup for most Ohio homes, installed start to finish by Generator One, a Generac Power Pro Prestige dealer.
Model Overview
The Generac 22kW Guardian, Model G0070420
The 22kW Guardian is the size Generator One most often recommends for whole-house backup in Ohio: enough for a typical home below 3,000 square feet with a single central AC. When the utility fails it starts by itself in seconds, fueled by the gas or propane line the house already has.

Specifications
22kW Guardian Technical Specifications
The G0070420 as Generac rates it, taken from the manufacturer's product page and spec sheet in October 2026.
| Rated output | 22kW (propane) / 21kW (natural gas) |
|---|---|
| Fuels it runs on | Propane or natural gas, the supply your home already has |
| Engine | G-Force 1000: 999cc, two cylinders |
| Electrical | Single phase 240V at 60 Hz, with a 100A main line breaker |
| Noise | 67 dB(A) at normal load; 57 dB(A) on its Quiet-Test exercise (each at 23 feet) |
| Size | 48 in long, 25 in deep, 29 in tall |
| Weight | 466 lb before the pad |
| Fuel burned at full load | 327 cubic feet of natural gas or 3.71 gallons of propane per hour |
| Controller | Generac Evolution |
| Enclosure | RhinoCoat-finished aluminum |
| Manufacturer coverage | Generac's five-year limited warranty, alongside the 12-Year Power Plus Warranty from Generator One |
Pricing
What Does a 22kW Guardian Cost Installed?
22kW Guardian · Installed
Priced at Your Free Estimate
Your installed price depends on your fuel line, electrical service, pad location and permits, so Generator One quotes it after the load calculation and site evaluation, with a detailed diagram and transparent pricing. The estimate is always free.
Installation
Turnkey 22kW Guardian Installation by Generator One
Site Evaluation
We confirm the 22kW fits your loads and set the location and the clearances from buildings and property lines.
Permits & Inspections
We apply for the permit before installation day and schedule the inspections.
Never Subcontracted
Our licensed electricians and plumbers install it, then we register it, simulate an outage and walk you through it. Most homes take one to two days.
Financing
Flexible Financing Options
Synchrony Bank Financing*
*Financing through Synchrony Bank, subject to credit approval. See financing options.
Convenient Monthly Payments*
Pay for the unit and the install over time, with the plan options walked through at your estimate.
12 Years of Full Coverage
As an air-cooled Generac, this unit carries the 12-Year Power Plus Warranty, exclusive to Canter Power Systems brands, with nothing stepping down over the term. See the warranty.
Resources
Generac 22kW Guardian Resources
Manufacturer paperwork for the G0070420, saved from Generac in October 2026 and hosted by Generator One.
Reviews
Trusted for Smooth Generac Installations, Reviewed by Customers
Accessories
Add-Ons for Your 22kW Guardian
Generac Mobile Link
It ships with this model. Generator One connects it at installation, watches the fault codes and run hours, and books service from the alert.
Generator Remote Monitoring →Cold Weather Kit & Surge Protection
A cold weather kit for an Ohio winter and whole-house surge protection, installed with the generator or at a service visit.
Generator Accessories →Always Free Estimates & Proposals
Call (855) 929-6620 for Your Free, No-Obligation Generator Estimate
A Generator One specialist checks that 22kW suits your loads and prepares the estimate at no cost, or schedule online.