Head to head · 2026
Generac Guardian 24kW (with 200A ATS) vs Generac Guardian 14kW (with 100A ATS)
Contender A
Generac Guardian 24kW (with 200A ATS)
Best OverallThe best-selling home standby in America: whole-home power, WiFi monitoring, 10-second automatic transfer.
~$6,875 typical price
Buy on AmazonContender B
Generac Guardian 14kW (with 100A ATS)
Best ValueEssentials-plus-comfort automatic backup for a sedan price instead of an SUV price.
~$5,399 typical price
Buy on AmazonOur verdict
Same brand, same app, same installer network — the question is pure capacity. The 24kW runs everything in a typical home simultaneously with no load management; the 14kW covers essentials plus one AC with smart load-shedding you'll genuinely never notice, for thousands less installed. Size to your panel load calculation, not your anxiety.
Pick the Generac if…
- ✓2,500+ sq ft, multiple AC units, or big well pump
- ✓Zero-compromise 'run everything' backup
- ✓Whole-home 200A transfer switch
Pick the Generac if…
- ✓Typical home under ~2,500 sq ft
- ✓Essentials + one AC covers your needs
- ✓Best automatic backup per dollar
Spec by spec
| Spec | Generac Guardian 24kW (with 200A ATS) | Generac Guardian 14kW (with 100A ATS) |
|---|---|---|
| Our score | 9.2 / 10 | 8.8 / 10 |
| Rated power | 24kW (LP) / 21kW (NG) | 14kW (LP) / 13kW (NG) |
| Fuel | Natural gas or propane | Natural gas or propane |
| Engine | 999cc G-Force V-twin | 816cc G-Force V-twin |
| Transfer switch | 200A ATS (pair; often bundled) | 100–200A ATS options |
| Noise | ~67 dBA @ 23 ft | ~66 dBA @ 23 ft |
| Monitoring | Mobile Link WiFi | Mobile Link WiFi |
| Self-test | Weekly, quiet mode | Weekly, quiet mode |
| Warranty | 5-year limited | 5-year limited |
Still deciding?
Read the full reviews for the complete story, or check both current prices — sale pricing swings this class of decision all the time.
~$6,875 typical price
Buy on Amazon~$5,399 typical price
Buy on Amazon