Whole-Home Standby Generators: 14-22kW Buying Guide

Whole-Home Standby Generators: 14-22kW Buying Guide

A whole-home standby system is three decisions: the kW class, the fuel, and the transfer switch. The 14-22kW band covers most single-family homes once load management is in the design - shedding the range or EV charger lets a smaller generator carry the service. This page lists the Generac standby units we stock with current pricing.

Selection criteria

  • Sizing: Start from the circuits you refuse to lose and their starting watts - well pumps and AC compressors need two to three times running watts.
  • Fuel: Natural gas derates output and depends on line pressure; LP carries full output but needs a tank sized for the outage length you care about.
  • Transfer switch: Service-entrance rated for most homes; confirm the service rating matches the switch.
  • Installation: Permit, pad, gas fitter, electrician, inspection under NEC 702 - and noise rules matter on small lots.

313 matching products in stock range

Product Brand From
Generac Concrete Super Concentrate 1 Gallon - 6663 Generac $15.67
Generac Base Plug - Liquid Cooled Generac $24.99
Generac WiFi Booster - 7203 Generac $37.99
Generac 3100 PSI 3.5 Turbo Nozzle - 6644 Generac $50.39
Generac 20" Bent Arm Lance Generac $56.25
Generac GNC-5984 36kW 2.4-Liter Guardian Maintenance/Tune-Up Kit Generac $74.99
Generac High Pressure 15" Surface Cleaner Generac $96.97
Generac 10 ft. 50 Amp generator cord with NEMA 1450 male and locking CS6364 female Generac $156.99
Generac 25 ft. 30 Amp generator cord with NEMA L14-30 ends Generac $169.57
2.3L Stainless Steel Fireproof Fuel Lines - 15, 20kW Generac $237.99
GS100 Solar Panel 100W Generac $296.00
Generac EZ Transfer Operator - 5447 Generac $371.49
Generac PM3800 49ST CSA - P008110 Generac $458.08
Generac Mobile Link Cellular LTE Industrial 24V - 7963 Generac $516.99
Generac GP3600 212CC PR 49ST CO - 7721 Generac $549.00
Generac HSB Display Metro GREY Generac $603.99
Generac T/S 16CKT. LC 100A NEMA3R GEN - RXG16EZA3 Generac $629.00
Generac PM4500 DF 49ST/CSA CO - P008170 Generac $687.47
Generac Smart Switch 100 Amp Service Rated 120/240 1Ø NEMA 3R CUL Approved - RXSW100A3C Generac $746.00
Generac GP6500 389 PR COS 49 St. - 7680 Generac $849.00
iQ3800 DF 49ST CO Generac $876.80
Generac TRANS SW 100A 120/208 3P NEMA3 Generac $909.00
Generac 100 Amp 120/230 1Ø NEMA 3R 50Hz Generac $972.06
Generac Portable GP Series GP5500 CARB Compliant | 5945 Generac $1,047.00
GP5500E 50ST CO Generac $1,093.51
Generac 100 Amp 220/415 3Ø NEMA 3R 50Hz Generac $1,154.54
Generac IQ5200DF CARB 24 Generac $1,249.00
Generac 200 Amp ATS 277/480V 3PH NEMA 3R Outdoor Rated Generac $1,426.00
Generac 100 Amp Service Rated 120/240 3Ø NEMA 3R Generac $1,759.00
Generac 200 Amp Service Rated 120/208 3Ø NEMA 3R Generac $2,193.50
200 Amp Service Rated 120/240 3Ø NEMA 3R Generac $2,329.00
Generac Powerpact 7.5Kw Home Backup Air-Cooled Gas Engine Generator in Steel Enclosure - Generac $3,299.64
Generac Guardian 7173 13.0KW Standby Generator Generac $4,235.34
14KW/817 Generac 240V 1PH NO T/SW Generac $4,787.00
Generac 14RCA 14kW 3-Phase 208V Standby Generator – 14RCA-QS7 Generac $5,225.90
Generac 14KW/817 GENERAC 240V 1PH NO T/SW Generac $5,824.40
18KW/817 Generac 240V 1PH NO T/SW Generac $6,409.77
Generac Guardian 7042-3 22.0KW Standby Generator Generac $6,692.23
26KW/997 Generac 240V 1PH 200A SE T/SW Generac $7,001.45
Generac 22KW/997 GENERAC 240V 1PH 200A SE T/SW Generac $7,229.00

Trade pricing and freight

Pallet and LTL orders ship from Louisville, KY. Send your list and ZIP to the quote desk for line-item trade pricing and freight.

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