Description

Generac Guardian 22/19.5 kW Home Standby

The Guardian 22 kW is one of the most powerful air-cooled home standby units available. It delivers utility-grade backup power with Wi-Fi monitoring and proven Guardian reliability.

Model options

• 7042 — 22/19.5 kW, Aluminum Enclosure (Generator Only)
  Ideal when you already have a transfer switch or want a custom whole-home/load-managed design. Wi-Fi is included for remote status and alerts.

• 7043 — 22/19.5 kW, Aluminum Enclosure + 200A SE Transfer Switch
  A complete package for whole-home backup on up to 200A services. Retailers list this bundle as “200SE Updated with NEW EPA Certification.”

Output ratings: 22 kW on LP and 19.5 kW on NG (120/240 V split-phase). TruePower™ delivers <5% THD for sensitive electronics.
Placement: can be installed as close as 18″ from a structure—always follow local codes and clearance rules. support.generac.com

What a 22/19.5 kW generator can run (typical)

A 22/19.5 kW unit can back up most essentials and many comfort loads in gas-heated homes. Actual capacity depends on start surges, altitude, and temperature.

• Refrigeration & pumps

  • Refrigerator and freezer

  • One or two sump / well pumps (often up to ~1 HP with load management)

• Heating & cooling

  • Gas furnace or boiler (blower/circulators)

  • Central A/C ~4–5 tons, often two smaller systems with soft-start or smart load management

• Home essentials

  • Lighting circuits (LED), outlets, garage door opener

  • Internet/router, home office electronics, TVs

  • Kitchen outlets and a microwave; many ranges/ovens can be included if other loads are managed

Rule of thumb:

• On LP (22 kW) you have about 92 A at 240 V available for steady loads, with headroom for motor starts.

• On NG (19.5 kW) you have about 81 A at 240 V steady, plus start headroom.

• Large electric loads (tankless electric water heater, electric dryer, EV charger) usually need smart load shedding or exclusion.

Key performance features

• TruePower™ (<5% THD): utility-grade power for sensitive electronics.

• G-Force™ 1000 engine: purpose-built for generators; durable and low-maintenance.

• Quiet-Test™: low-RPM self-test that reduces noise and fuel use.

• All-aluminum enclosure: corrosion-resistant finish for harsh weather.

• Mobile Link™ connectivity: check status and maintenance from your phone, tablet, or PC.

Professional installation by GSHA Services, LTD

GSHA Services provides turnkey, code-compliant installation—site prep, pad, wiring, transfer switch, fuel hookup, and start-up—so your system is ready when you need it.