Westinghouse
Westinghouse iGen4500
$999
Best Portable Generators · head-to-head
Westinghouse iGen4500 vs Generac GP3000i
A sourced, side-by-side comparison. Generac GP3000i is cheaper at $799. Every spec and price links to its source.
Generac
Generac GP3000i
$799Cheaper
Which is better: the Westinghouse iGen4500 or Generac GP3000i?
The Generac GP3000i wins 1 of the 1 specs we compare head to head; the other wins 0. The Generac GP3000i is the cheaper at $799. The Generac GP3000i both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Westinghouse iGen4500 | Generac GP3000i |
|---|---|---|
| US price | $999 | $799 |
| Brand | Westinghouse | Generac |
| Released | — | — |
| Type | inverter | inverter |
| Running watts | 3700 | 2300 |
| Peak watts | 4500 | 3000 |
| Fuel | gas | gas |
| Runtime hours | 18 | 5.8 |
| Noise dba | 52 | — |
| Weight (lb) | 127.6 | 59.5 |
| Outlets | 1×TT-30R (RV), 2×120V 20A (5-20R), 2×USB | 1×120V 20A duplex (5-20R), 1×120V 30A (L5-30R), 2×5V USB |
| Release year | — | — |
Sources — Westinghouse iGen4500: webstaurantstore.com (verified 2026-06-19). Generac GP3000i: generatorbible.com (verified 2026-06-19).
What's the difference between the Westinghouse iGen4500 and Generac GP3000i?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Running watts: Westinghouse iGen4500 3700 vs Generac GP3000i 2300
- Peak watts: Westinghouse iGen4500 4500 vs Generac GP3000i 3000
- Runtime hours: Westinghouse iGen4500 18 vs Generac GP3000i 5.8
- Weight (lb): Westinghouse iGen4500 127.6 vs Generac GP3000i 59.5
- Outlets: Westinghouse iGen4500 1×TT-30R (RV), 2×120V 20A (5-20R), 2×USB vs Generac GP3000i 1×120V 20A duplex (5-20R), 1×120V 30A (L5-30R), 2×5V USB
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Westinghouse iGen4500
Only one whitelisted tester covers this generator: Pro Tool Reviews names the Westinghouse iGen4500 (in its iGen4500DFc dual-fuel trim) its best inverter generator for 30-amp RVs, praising exceptionally quiet 52 dB operation, long runtime, strong fuel efficiency and a rich feature set. This is a buying-guide pick within a roundup, not an independent lab test, and the noise/runtime figures are the manufacturer-spec numbers cited in the guide. (1 sourced review.)
Praised: Exceptionally quiet 52 dB operation, standout even among inverter generators; Long runtime and strong fuel efficiency for a 30-amp RV; Rich feature set: dual-fuel, electric/remote start, CO detection, parallel-capable.
Flagged: No 240V outlet; Premium price, no sub-$1000 option among these picks.
Generac GP3000i
Only one whitelisted tester, Outdoor Life, published genuine hands-on prose on the Generac GP3000i, naming it 'Best for RV Camping' in its 2026 inverter-generator roundup. The reviewer field-used the unit during a real multi-day outage, praising quiet operation, reliable pull-starting after long storage, and clean power safe for sensitive electronics, but flagged it as underpowered for home backup and cumbersome to carry with a full tank. All figures cited are manufacturer specs, not independent lab measurements. (1 sourced review.)
Praised: Reliable pull-start, even after months of storage (3-4 pulls); Quiet operation and clean power safe for sensitive electronics; Portable for one person; ran a chest freezer through a multi-day outage.
Flagged: Underpowered for home backup; Cumbersome to carry with a full tank; Pull-start only, more labor-intensive than electric ignition.