(checked 2026-10-10)Very small sample (31 ratings), 25% 1-star and 0% 2-star.
Popular Mechanics' pick for sensitive electronics: one of the quietest it has tested at this size (61 dB at 25 feet, half load), with easy electric start, clean power and a CO shutoff. It costs more than a standard generator of similar capacity, and the dual-fuel Amazon listing has few ratings, with several owners saying it won't stay running.
Recalls (CPSC): No CPSC recall found for the iQ3800 (checked 2026-10-11). Generac's 2026-04-16 recall (CPSC 26-407, about 149,400 units) covers some GP-series open-frame models whose carburetors can leak fuel, not this model.
Power (gasoline): 3,000 running / 3,800 starting watts
CO shutoff: Yes: automatic CO shutoff that won't let it restart until the area is clear (Popular Mechanics); Generac calls it COsense
Top complaints
- Costs more than standard generators
Popular Mechanics' only con is that it's more expensive than a standard generator of similar capacity (list $1,149).
- Some units won't stay running
Amazon's summary says reliability gets mixed feedback, with several owners reporting it won't stay running. The listing has only 31 ratings, and a quarter are 1 star.
- No propane gauge
The display shows the gas level but has no gauge for propane (Popular Mechanics).
What owners love
- Very quiet
Popular Mechanics measured 61 dB at 25 feet at 50% load and calls it one of the quietest generators of this size it has tested.
- Easy to start and switch fuels
Electric start with auto choke fires it up in 4-5 seconds, the recoil starter works with minimal effort, and switching between gas and propane takes one dial (Popular Mechanics).
- Clean power and good outlets
Less than 3% THD, confirmed stable on a clamp meter. Four 20-amp outlets, a 30-amp twist-lock for a transfer switch, plus USB-A and USB-C (Popular Mechanics).
- You need 240-volt or whole-house power
- You want the most watts per dollar
- You want a long Amazon track record
- Powering TVs, computers and smart appliances
- Quiet backup in neighborhoods
- RVs and campgrounds
Scores (tap for why)
What experts say
- Popular Mechanics (best portable generators): Best for powering sensitive electronics (updated 2026-10-06): very quiet with an easy-to-read display, but pricier than a standard generator.
- Popular Mechanics (Generac iQ3800 review): Hands-on review (2025-09-30): 'little I can criticize'; quiet, easy to start and clean power.