Generac Guardian 14kW Air-Cooled Home Standby Generator with 200A SE Transfer Switch — Model 7225
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At a glance
- Standby Power
- 14 kW LP / 14 kW NG
- Voltage/Phase
- 120/240V, single-phase
- Fuel
- Natural Gas or Liquid Propane (field-selectable dual-fuel carburetion)
- Engine
- Generac G-Force 800 Series, 816cc V-twin, pressure-lubricated
- Cooling
- Air-cooled
- Sound Level
- 65 dBA at 7m (normal operation); low-RPM Quiet-Test exercise mode
- Connectivity
- WiFi-enabled with free Mobile Link remote monitoring
- Transfer Switch
- 200A Service-Entrance Rated ATS included (120/240V, NEMA 3R indoor/outdoor enclosure)
- Dimensions
- 48 in L x 25 in W x 29 in H
- Weight
- 385 lbs
- Warranty
- 5-year limited warranty
Why this generator
- Whole-house backup bundle — includes a 200-amp Service-Entrance Rated automatic transfer switch (NEMA 3R) that doubles as your service disconnect
- 14,000 watts of standby power on either natural gas or propane — no derating between fuels
- Purpose-built Generac G-Force 800 816cc V-twin engine with full pressure lubrication for longer life and extended maintenance intervals
- Free Mobile Link WiFi monitoring — check generator status from any phone, tablet, or computer
- True Power Technology delivers under 5% total harmonic distortion, safe for sensitive electronics and appliances
- Quiet-Test weekly self-test runs at lower RPM, and a corrosion-resistant aluminum enclosure with RhinoCoat finish stands up to the elements
Everything you need to know
Generac Guardian Series 14kW air-cooled home standby generator (model 7225). Runs on natural gas or LP (field-selectable), WiFi-enabled with Mobile Link remote monitoring, aluminum enclosure.
Bundle includes a 200a se transfer switch — everything needed for a streamlined whole-home install.
Genuine Generac unit from a factory-authorized dealer. Free shipping to the lower 48. Professional installation available in NC & SC.
Frequently asked questions
What fuel does the this generator run on?+
The unit runs on natural gas or LP (propane), selectable at install.
Does the price include installation?+
No — the online price covers the unit shipped free to the lower 48. Professional installation is available in NC & SC on a quote basis; outside that area we'll help you find a qualified local installer.
How fast does it ship?+
Free curbside / liftgate shipping to the contiguous 48 states. Most orders leave the warehouse in 3–5 business days.
What warranty is included?+
5-year limited factory warranty, registered and supported directly through Generac.
Is financing available?+
Yes — 0% APR financing is available on qualifying orders. Ask us for details before checkout.
Is a transfer switch included?+
Yes — this configuration ships as a combo with a matched automatic transfer switch (ATS).
Free curbside shipping
Liftgate delivery to the lower 48. Most orders leave the warehouse in 3–5 business days.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Real Cummins warranty
Full 5-year / 2,000-hour limited warranty — registered and supported through Cummins directly.