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EcoFlow Smart Generator 4000 (Dual Fuel)

Original price $1,799.00 - Original price $1,799.00
Original price
$1,799.00
$1,799.00 - $1,799.00
Current price $1,799.00
SKU EFSG4000-US-EPA
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Description

The EcoFlow Smart Generator 4000 (Dual Fuel) offers a smart, efficient backup power solution with significant fuel savings and reduced emissions. It saves 40% of fuel compared to traditional generators, providing 1kWh more power per gallon of fuel. The generator features four intelligent backup modes when paired with the EcoFlow DELTA Pro 3, including customizable start/stop settings, night-care mode, PV-priority mode, and smart reverse charging.

It supports dual fuel types—gasoline and propane—for versatile and reliable backup power. The EcoFlow app enables remote monitoring and control, providing real-time alerts for safety and maintenance. The generator offers multiple start/stop methods, including manual, electric, app-controlled, and scheduled options. Its user-friendly design includes an ergonomic pull-rod for easy transport and compact storage.

Key Features

  • Dual Fuel Capability: Operates on both LPG and gasoline for flexible fuel options.
  • DC Output: 3200W for robust power supply.
  • Energy Efficiency: 40% higher energy efficiency compared to standard models.
  • Self-Starting Modes: Four different modes for convenient automatic starting.
  • App Control: Monitor and control via smartphone app.
  • Safety Alerts: Equipped with five safety alerts for reliable operation.
  • Portable Design: Ergonomically designed for easy transport.
  • LCD HD Screen: Provides clear, detailed information on performance and status.
*Note: The terms "DELTA" and "RIVER" as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC.
Industry’s Fastest 3200W DC Fast Charging System


Higher efficiency, more reliable when connected with EcoFlow DELTA Pro 3


Unlock unmatched power and reliability with the EcoFlow Smart Generator 4000 (Dual Fuel) and EcoFlow DELTA Pro 3 hybrid setup. Featuring industry-leading 3200W DC fast charging and up to 40% improved efficiency, they excel in various scenarios, from backup power to on-the-go charging.Control from Anywhere with Just One Tap

Higher efficiency, more reliable when connected with EcoFlow DELTA Pro 3

 

Higher efficiency, more reliable when connected with EcoFlow DELTA Pro 3

 

Higher efficiency, more reliable when connected with EcoFlow DELTA Pro 3

More Energy-Saving & Efficient

EcoFlow Smart Generator (Dual Fuel) 4000 not only offers significant fuel savings but also generates fewer emissions. Compared to traditional fuel generators, it can save 40% of fuel when fully charging EcoFlow DELTA Pro 3. This means that with the same 1 gallon of fuel, this smart generator provides 1kWh more power.

Power Backup Made Smart and Simple

With four intelligent self-starting backup modes (when paired with EcoFlow DELTA Pro 3), power backup has never been easier.

Customizable Start/Stop

At night, once the power consumption reaches a certain level, the smart generator will automatically start to replenish power, eliminating the need to get up in the middle of the night to reset it.

Night Care Mode

Monitor the remaining power of the EcoFlow DELTA Pro 3 energy storage in real-time, predict future power consumption and measure the power generation from PV, and auto-recharge it in time to ensure a peaceful night's sleep and rest for your family and neighbors, avoiding noise during charging at night or during peak power consumption periods.

PV-priority Mode

Recharge the EcoFlow DELTA Pro 3 with PV panels, automatically prioritizing PV charging for savings and environmental benefits while minimizing noise from continuous generator operation. Need more power quickly as an outage approaches? One tap in the EcoFlow app switches back to PV and Smart Generator charging combo for swift reinforcement.

Smart Reverse Charging

It provides a reverse power supply to the generator battery through EcoFlow DELTA Pro 3 to wake up the generator and start charging it at the same time. Also, to prevent the Smart Generator battery failure caused by long-term storage or extremely low temperatures, it protects household electricity during severe weather scenarios.

 

Dual Fuel for Double Peace of Mind

Rest easy knowing that LPG and gasoline are readily accessible, ensuring you can quickly obtain fuel for backup power and alleviating concerns about fuel shortages during emergencies.

Gasoline Power

Dual Fuel for Double Peace of Mind

 

Propane Power

Simply plug in a 20lb propone tank and allow you access to a 24kWh power, secured and keep your family a whole day of cozy life in a outage.

Dual Fuel for Double Peace of Mind

 

Control from Anywhere with Just One Tap

Use the EcoFlow app to monitor and control energy consumption and equipment operation. Get real-time key alerts like CO concentration, high & low temperature warnings, etc., to ensure safety. View faults and maintenance prompts for easy upkeep.

Multiple Start/Stop Methods for Easy Operation

EcoFlow Smart Generator 4000 (Dual Fuel) offers intelligent and elegant start/stop methods for various scenarios, providing greater convenience.

5 Quick Start Methods

① Manual pulling cord start
② Electric button start
③ Reverse charging by portable power stations
④ App start (Bluetooth/Wi-Fi)
⑤ Scheduled automatic start.


6 Shutdown Methods

① Knob switch off
② One-click shutdown (electric button)
③ automatic shutdown
④ Scheduled-time shutdown
⑤ Low output shutdown*
⑥ App-controlled shutdown.
*When matched with a third-party portable power station, it automatically shuts down after the portable the power station is fully charged and a decrease in output power is detected.

Stay on Guard With Real-time Alerts

Receive 5 safety notifications directly through the EcoFlow app, ensuring remote or indoor users stay informed in real-time. All features(except fuel alerts) trigger automatic shutdowns to prioritize safety for you.

User-Friendly Design, Enhanced Portability

The ergonomic design with a built-in pull-rod allows easy transport from the garage or basement, making it simple to activate backup power. Its compact size ensures it doesn't take up too much space for storage and stays well-organized.

Specifications

Generator Specifications

  • Net Weight: 83 lbs (38 kg)
  • Dimensions: 24.9 x 15 x 20.8 in (633 x 381 x 529 mm)
  • Type: Inverter Generator
  • Frequency: 60 Hz
  • Rated Voltage: 120V
  • Rated Power:
    • 3200W with Gasoline
    • 2900W with LPG
    • 4000W Peak Output with X-Boost Technology
  • DC Output Voltage: 40-60V
  • DC Current: 56A Max

Engine Specifications

  • Engine Size: 196cc
  • Type: Four-stroke
  • Fuel Type: Unleaded Gasoline/LPG
  • Fuel Tank Capacity: 6L (1.58 gal)
  • Engine Oil Capacity: 0.55L (0.145 gal)
  • Noise Level (at 7m Distance): 70 dB (Full Load)
  • Continuous Working Time (Gas):
    • 2.8 hours (Full Load)
    • 8 hours (1/4 Load)

Package Includes

Video

Warranty

Warranty Policy – King of Generators

At King of Generators, we are committed to ensuring you have a seamless experience with your purchase. Below is an overview of the EcoFlow warranty policy to help you understand coverage and how to make a warranty claim through King of Generators support.


Warranty Period Overview

EcoFlow provides a limited warranty on its products, starting from the date of purchase. The warranty period varies by product type:

  • DELTA Series & RIVER Series: 1–5 years (depending on model)
  • Solar Panels: 12 months to 10 years
  • Accessories: 12 months
  • Smart Generators: 1–3 years

For detailed coverage, refer to the product-specific warranty on EcoFlow’s official website or contact King of Generators support.


What’s Covered?

  • Free repairs or replacements for defects in materials or workmanship
  • Warranty extensions available for select products upon registration on EcoFlow’s website

What’s Not Covered?

The warranty does not cover:

  • Damage due to misuse, unauthorized modifications, or external factors (e.g., water, weather)
  • Products purchased from unauthorized sellers or without valid proof of purchase
  • Products used outside the intended region or incompatible with local power standards

Note: EcoFlow products are designed for use in the U.S. Warranty claims for malfunctions due to use outside the country may not be covered.


How to Make a Warranty Claim

If you experience any issues, please contact King of Generators support to initiate a warranty claim.

📞 Phone: (855) 799-2943
📧 Email: info@kinggenerators.com

Our team will assist you with the claim process, including verifying your purchase, troubleshooting the issue, and coordinating with EcoFlow for repair or replacement.

Once approved, we will provide further instructions, including shipping details and estimated resolution time.


For any questions regarding warranty coverage, feel free to contact King of Generators support. We're here to help!