Briggs & Stratton PowerProtect DX 20kW (040657) vs Generac Guardian 24kW with 200A ATS (7210)
The Generac Guardian 24kW with 200A ATS (7210) is the more powerful unit: 24,000 running watts against 20,000 — about 17% more capacity for the Generac Guardian 24kW with 200A ATS (7210). The Generac Guardian 24kW with 200A ATS (7210) is the quieter of the two (67 dBA vs 68 dBA — though manufacturers measure noise at different loads and distances). Warranty favors the Briggs & Stratton PowerProtect DX 20kW (040657): 10 years vs 5.
| Briggs & Stratton PowerProtect DX 20kW (040657) | Generac Guardian 24kW with 200A ATS (7210) | |
|---|---|---|
| Price (MSRP) | — | $7,399 |
| Type | home-standby | home-standby |
| Fuel | natural-gas, propane | natural-gas, propane |
| Running watts (gas / LP for standby) | 20000 W | 24000 W |
| Running watts (propane) | 20000 W | 24000 W |
| Running watts (natural gas) | 20000 W | 21000 W |
| Noise level | 68 dBA | 67 dBA |
| Output voltage | 120/240V | 120/240V |
| Automatic transfer switch included | No | Yes |
| Main-line circuit breaker | 100 A | 100 A |
| Start type | automatic | automatic |
| Engine | Briggs & Stratton Vanguard | Generac G-Force 1000 |
| Engine displacement | 993 cc | 999 cc |
| NG use at half load | — | 203 ft³/h |
| Propane use at half load | — | 2.53 gal/h |
| Weight | 520 lb | 455 lb |
| Warranty | 10 yr | 5 yr |
Frequently asked questions
Which is more powerful, the Briggs & Stratton PowerProtect DX 20kW (040657) or the Generac Guardian 24kW with 200A ATS (7210)?
The Generac Guardian 24kW with 200A ATS (7210), at 24,000 running watts on its best fuel versus 20,000 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
Where do these specifications come from?
Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.