Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
We like the Generac 3,500W Inverter for the mix: an inverter engine that idles down at light load, a built-in CO sensor and push-button electric start. Think of it for backup power that is kind to electronics: 6.4/10 on what its listing documents.
| Brand | Generac |
|---|---|
| Category | Inverter generators |
| Listed fuels | gasoline |
| CO sensor | Stated in the listing |
| ASIN | B0DD23W8F3 |
Full listing title: Generac 3,500 Watt Gas Powered Portable Inverter Generator, Electric Start
Rated from the listing's specs, no buyer reviews yet
What it's made for: backup power that is kind to electronics.
Two generators close to it on our rating, each with a dated price.
What it has going for it
Inverter. The engine speeds up and slows down with the load, so it is quieter and thriftier at 3 a.m. when only the fridge and a lamp are on. The clean sine wave is kinder to laptops, TVs and the furnace control board.
CO sensor. A sensor that watches the carbon monoxide around the unit, per the listing. Treat it as a backup: the generator still belongs outside, about 20 ft from doors and windows.
Electric start. A button instead of a pull cord, which matters at 5 a.m. in sleet. Keep the battery topped up between storms (a trickle charger does it).
What the Generac 3,500W Inverter listing names:
Read the manual for the fuel, the oil grade and what each outlet is rated for before the first start.
The button opens the exact listing (ASIN B0DD23W8F3), where today's price, stock and seller apply.
Our take
The Generac 3,500W Inverter earns its place with an inverter engine that idles down at light load and a built-in CO sensor. No buyer reviews yet, so the Generac 3,500W Inverter has to win you over on paper. The catch with this Generac inverter generator: gasoline only, while most picks here also burn propane. We'd pick it if laptops, TVs or a furnace board will be plugged in; otherwise, put it next to the Generac GP3300i first.
Fill it with oil before the first start, then run it for a few minutes outside with a small load.
Push the start button, let it warm up, then add loads one at a time, the biggest motor first. Keep stabilised cans ready, never refuel it hot.
Run it every month or so for 20 minutes and keep the battery charged. Add stabiliser or run the carburetor dry before storage. Our maintenance schedule has the full list.
First oil change after the break-in hours in the manual, then on schedule. Air filter and spark plug once a season, and a cover for the months it sits.
Before the Generac 3,500W Inverter ships, check the running watts: the listing we read gives no clear wattage, so ask for the running figure before you size anything against it.
Write down what has to run at the same time, add the biggest motor surge (well pump, sump pump, AC), and let our sizing calculator do the sums.
Plan on heavy-duty extension cords to the appliances, or ask an electrician which inlet and switch would match its outlets. Our interlock vs transfer switch guide compares the two routes.
Outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details.
Gasoline goes stale in a few months: stabiliser, a dry place for the cans, and a run every month or so keep it ready. Our fuel storage guide and maintenance schedule cover both.
How the Generac 3,500W Inverter stacks up against the closest alternative, the Generac GP3300i.
| Criterion | Generac 3,500W Inverter | Generac GP3300i |
|---|---|---|
| Our rating | 6.4/10 | 6.5/10 |
| Fuels | Gasoline | Gasoline |
| Design | Inverter | Inverter |
| Start | Electric | Not stated |
Pick the Generac GP3300i if you want our higher-rated option (6.5/10); stay with the Generac 3,500W Inverter for electric start.
We rate it 6.4/10 (fair). The rating comes from its documented listing alone, as no customer-review record is captured yet.
The listing names gasoline. Run it outdoors only, away from doors, windows and vents.
Its listing states clean inverter power, a built-in CO sensor and push-button electric start. These are the seller's figures, not our measurements: how loud it is in your driveway and how it handles your well pump's surge can't be read from a listing.
Your load list: write down what has to run at the same time, add the biggest motor surge (well pump, sump pump, AC), and let our sizing calculator do the sums. How it reaches the house: plan on heavy-duty extension cords to the appliances, or ask an electrician which inlet and switch would match its outlets. Our interlock vs transfer switch guide compares the two routes. Where it will run: outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details. Fuel and storage: gasoline goes stale in a few months: stabiliser, a dry place for the cans, and a run every month or so keep it ready. Our fuel storage guide and maintenance schedule cover both.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula, plus our editors' read of how it compares with its rivals.