Close

Close
 
 
Close
FREE SHIPPING — Generac Guardian Air-Cooled Standby Generator — 22kW (LP)/19.5kW (NG), 200 Amp Service-Rated Smart Switch, Model# 6551
Enlarge Video Demo
 
 

FREE SHIPPING — Generac Guardian Air-Cooled Standby Generator — 22kW (LP)/19.5kW (NG), 200 Amp Service-Rated Smart Switch, Model# 6551

Item# 45335

Only $4599.00

Add to Cart

Item in Cart

Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Free Shipping  (lower 48 states)
Ships Truck 556.0 lbs
Unloading Requirements
Not Available in Stores
Customer Product Rating
 

Product Summary


Play Video

This Generac Guardian Series Standby Generator protects your home automatically 24/7. Runs on natural gas or liquid propane (LP) fuel, and sits outside just like a central air conditioning unit. No refueling, no manual starting and no extension cords. Delivers power directly to your home’s electrical system, backing up your entire home or just the most essential items. Add even greater convenience with a Mobile Link (not included), Generac’s cellular remote monitoring system. Tool-less fuel conversion, external main circuit breaker, system status LED, and external GFCI outlet. Mobile Link and remote monitoring systems available, sold separately.

What's Included

  • (1) 22kW generator, Model# 6551
  • (1) 200 Amp service-rated Smart Switch
  • (1) Composite mounting pad

Features + Benefits

Top of page
  • Includes 200-Amp service-rated Smart Switch
  • Generac OHVI® engine is designed to run for extended periods, ensuring reliable, uninterrupted power
  • Generac's Evolution Controller features a dual-line, improved multilingual LCD display for easy monitoring and management of generator functions, built-in hour meter and external at-a-glance indicator lights
  • Install as close as 18in. to home as certified by NFPA standards or directed by local codes
  • True Power™ technology provides clean, smooth operation of sensitive electronics and appliances
  • Quiet-Test™ weekly self-test mode runs at lower RPM, is quieter and consumes less fuel
  • Sturdy, corrosion-resistant aluminum enclosure
  • Tool-less fuel conversion with swivel-action fuel selector dial allows for easy switching between natural gas and LP fuels
  • Mobile Link™ compatibility for adding Mobile Link wireless remote monitoring system to receive status updates using your computer, tablet or smart phone
  • Battery required, not included
  • 24/7 Generac customer care support 365 days a year
  • Engineered and built in U.S.A.
  • 5-year limited warranty

Key Specs

Top of page
Item#45335
Ship Weight556.0 lbs
Rated Watts (kW)22 LP/19.5 NG
Amps91.7/81.25
Rated Watts LP (kW)22
Rated Watts NG (kW)19.5
EngineGenerac OHVI V-Twin
Engine Displacement (cc)999
Volts120/ 240
Engine CoolingAir cooled
Start TypeAutomatic
PhaseSingle
Noise Level (dB)66
Transfer Switch200A Smart Switch
Fuel TypeLiquid propane, natural gas
EnclosureAluminum
Mounting PadYes
Battery RequiredYes
Battery IncludedNo
Auto ShutdownYes
Safety AlertsYes
UL ListedYes
Dimensions L x W x H (in.)48 x 25 x 29

Customer Reviews

Top of page

Product Question + Answer

Top of page

Featured Accessories — Hand Picked by our Product Experts

Top of page

Products We Recommend

Generator Monitoring Systems

FREE SHIPPING — Generac Mobile Link Remote Monitoring System, Model# 6463 FREE SHIPPING — Generac Mobile Link Remote Monitoring System, Model# 6463
Item# 37871
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Only $299.99
Add to Cart

Compare with Most Popular Residential Standby Generators

Top of page
See All Residential Standby Generators
 
 
 
 
Currently Viewing
 
 
(109)
Item# 37245
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Only $2349.00
(81)
Item# 37465
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Was $2999.00
Sale $2939.00
(234)
Item# 45336
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Only $4409.00
FREE SHIPPING — Generac Guardian Air-Cooled Standby Generator — 22kW (LP)/19.5kW (NG), 200 Amp Service-Rated Smart Switch, Model# 6551 The price is $4,599.00.
FREE SHIPPING — Generac Guardian Air-Cooled Standby Generator — 22kW (LP)/19.5kW (NG), 200 Amp Service-Rated Smart Switch, Model# 6551
(Not Yet Rated - New)
Item# 45335
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Only $4599.00
(6)
Item# 167113
Factory Shipped —
Estimated Delivery: 5 - 10 Business Days
Only $12,131.00
Hide Similarities
Rated Watts (kW)
8 LP/7 NG 11 LP/10 NG 20 LP/18 NG 22 LP/19.5 NG 45
Amps
33.3 LP/29.2 NG 41.6 LP/37.5 NG 83.7/75 91.7/81.25 187.5
Rated Watts LP (kW)
8 11 20 22 45
Rated Watts NG (kW)
7 10 18 19.5 45
Engine
Generac OHV Generac OHVI Generac OHVI Generac OHVI V-Twin Generac 2.4L 4-cylinder automotive-style in-line 4-cylinder
Engine Displacement (cc)
410 530 999 999 2,400
Engine Speed (RPM)
- - - - 3,600
Volts
120/240 120/240 120/240 120/ 240 120/240
Engine Cooling Air cooled Air cooled Air cooled Air cooled Liquid
Start Type
Automatic Automatic Automatic Automatic Automatic
Phase
Single Single Single Single 1
Noise Level (dB)
66 63 66 66 73
Transfer Switch 50A w/10 circuits 200A service rated Smart Switch 200A Smart Switch 200A Smart Switch Not included
Fuel Type LP or NG LP/NG Liquid propane, natural gas Liquid propane, natural gas Liquid propane, natural gas
Enclosure All-weather steel All-weather steel All-weather steel Aluminum Steel
Mounting Pad Yes Yes Yes Yes No
Battery Required Yes Yes Yes Yes Yes
Battery Included No No No No No
Auto Shutdown Yes Yes Yes Yes Yes
Safety Alerts Yes Yes Yes Yes -
UL Listed
Yes Yes Yes Yes Yes
Dimensions L x W x H (in.)
48 x 25 x 29 48 x 25 x 29 48 x 25 x 29 48 x 25 x 29 77 x 33.5 x 45