The Genmax GM2800iAE is a 2800-watt gasoline inverter generator with CO Detect, suitable for emergency home power, outdoor activities, and RV use. Its inverter technology ensures clean power for sensitive electronics and it features multiple starting options for convenience.
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Here's the quick tradeoff view — what this model does well, and where it may not fit.
The Genmax GM2800iAE is a gasoline-powered inverter generator rated for 2800 starting watts and 2500 running watts. That combination targets portable power needs where you want a defined surge capability for starting loads and a steady running output for continuous use.
Because it is an inverter generator, the GM2800iAE is built around delivering controlled power from a compact gasoline unit, with its wattage ratings clearly framing what it can support at startup versus sustained operation.
Running on gasoline, the GM2800iAE pairs its 2800 starting watts and 2500 running watts with a 62 dBA noise level, which sets expectations for how present it will sound while operating. For power quality, it lists 3% THD, a concrete figure that speaks to cleaner output for devices that benefit from tighter waveform control.
Runtime is given as 10 hours at 25% load, supported by a 1.7-gallon fuel tank, which helps translate fuel capacity into a usable stretch of operating time for lighter demand. The runtime value at 50% load is listed as 0, so the only stated runtime performance point is the 10-hour figure at 25% load.
At 54 lbs, the GM2800iAE stays within a weight that many users can move without needing specialized handling, especially when portability is a priority. Its dimensions of 20.7 x 12.2 x 19.7 inches further reinforce a compact footprint that is easier to place in storage or transport to where power is needed.
Those measurements also help with practical planning, since the unit’s length, width, and height are clearly defined for fitting into a vehicle cargo area or a designated storage spot.
Starting flexibility is a headline convenience here, with a starting system that includes Recoil, Electric, and Remote options, letting you choose between manual pull starting and push-button or remote operation. Day-to-day monitoring is supported by a fuel gauge and indicators, giving you at-a-glance feedback while the generator is running.
The GM2800iAE is parallel capable, which opens the door to combining output with another compatible unit when you want to scale beyond a single generator’s wattage. It is also RV ready, aligning it with RV power use without requiring you to treat it as a workaround solution. For safety and durability touches, it includes a spark arrestor and covered outlets, and it also lists AVR for automatic voltage regulation. Compliance is stated as EPA and ANSI/PGMA G300-2023, and the generator comes with a 1-year warranty.
Needs 240V output
Needs 240V output
Needs 240V output
Needs 240V output
May struggle with startup surge
Est. running: 1,000W
Peak surge (single motor): 1,200W
Avoid starting multiple motor loads at the same time.
Est. running: 1,900W
Peak surge (single motor): 1,200W
Avoid starting multiple motor loads at the same time.
Est. running: 200W
These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.
Genmax is a generator manufacturer known for innovation, quality, and a diverse range of portable and standby generators.
| Fuel | Running | Starting | Runtime @50% | Runtime @25% |
|---|---|---|---|---|
| Gasoline | 2500W | 2800W | Not available | 10h |
| Running Watts | 2,500 watts |
|---|---|
| Starting Watts | 2,800 watts |
| Starting Watts (Gasoline) | 2,800 W |
| Running Watts (Gasoline) | 2,500 W |
| Engine | 145 cc Dinking OHV 4-stroke |
|---|---|
| Engine Type | Dinking OHV 4-stroke |
| Engine Displacement | 145 cc |
| Engine Oil | 10W-30 |
| Spark Arrestor | Yes |
| Emissions Compliance | EPA, ANSI/PGMA G300-2023 |
| Voltage (AC) | 120 |
|---|---|
| Voltage (DC) | 5 |
| Phase | Single |
| Running Amps | 20.8 A |
| Peak Amps | 23.3 A |
| AC Frequency | 60 hz |
| Current | 20.8 amps |
| GFCI Outlets | No |
| Neutral | Yes |
| USB Outlets | 2x 5V USB port (USB-A) |
| DC Outlets | 2x 5V USB port (USB-A) |
| AC Outlets | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) |
| Total Harmonic Distortion (THD) | 3 % |
| Dimensions | 20.7 x 12.2 x 19.7 inches |
|---|---|
| Weight | 54 lbs |
| Automatic Low Oil Shutdown | Yes |
|---|---|
| Emissions Compliance | EPA, ANSI/PGMA G300-2023 |
| Automatic Voltage Regulation | Yes |
| Automatic Voltage Regulator | Yes |
| Carbon Monoxide Sensor | Yes |
| Covered Outlets | Yes |
| Electric Start | Yes |
| Fuel Gauge | Yes |
| Fuel Tank Capacity | 1.7 gallons |
| Indicators | Yes |
| Inverter | Yes |
| Noise Level | 62 dBA |
| Parallel Capable | Yes |
| Recoil Start | Yes |
| Remote Start | Yes |
| RV Ready | Yes |
| Starter Type | Recoil, Electric, Remote |
| Starting System | Recoil, Electric, Remote |
| Warranty | 1 years |
| Fuel Type | Gasoline |
|---|
| Runtime @ 25% | 10 hours |
|---|---|
| Runtime @ 25% Load (Gasoline) | 10 hours |
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