Firman WH02942
Generator · Whisper Hybrid. Specs from the manufacturer page (checked ).

The Firman WH02942 is a dual-fuel inverter generator that runs on gasoline or propane. It produces 3,200 starting watts and 2,900 running watts on gasoline, or 2,900 starting watts and 2,600 running watts on propane, and operates at 58 dB.
Key features
- Runs on gasoline or propane (dual fuel)
- 3,200 starting watts and 2,900 running watts on gasoline
- 2,900 starting watts and 2,600 running watts on propane
- Operates at 58 dB
- Electric start
- 120V 20A duplex (5-20R) outlet
- 30A RV-ready TT-30R outlet
- USB-A charging port and 12V DC power port
What it is for
- RV use
- camping
- tailgating
- emergency backup
Specifications
| Running watts | 2900 W |
|---|---|
| Peak / surge | 3200 W |
| Fuel | dual-fuel |
| Noise | 58 dB |
| AC output voltage | 120V |
From the Firman page. Values the manufacturer does not publish are left out.
What is in the box
- Engine oil bottle
- Oil funnel
- Spark plug wrench
- Screwdriver
- 12V battery cable
- LPG regulator hose
- Floater charger
- Quick oil drain
Similar inverter & portable generators
WEN 56360iX
EcoFlow Smart Generator (Dual Fuel)
A-iPower SUA4300i
WEN 56455i
WEN 56360i
WEN DF360iX
GenMax GM3300i
Firman WH02942 comparisons
- WH02942 vs Anker SOLIX Smart Generator 5500
- WH02942 vs WEN 56360iX
- WH02942 vs EcoFlow Smart Generator (Dual Fuel)
- WH02942 vs A-iPower SUA4300i
- WH02942 vs WEN 56455i
Connection and wiring
Follow the diagrams in the Firman manual. Connecting to a home panel needs a transfer switch or interlock and a licensed electrician.
Open the Firman manual (PDF) →
Error codes and troubleshooting
We found no error-code table in this manual. Its troubleshooting section is the reference.
FAQ
Can the Firman WH02942 start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 3200 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.