Generac 5818 Liquid Propane 6 kW, 120V Steel Standby Generator for Off Grid Applications from the EcoGen Series

- Item #: BCI2137353

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Liquid Propane
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Configure your Generac 5818 6 kW, 120V Steel Standby Generator for Off Grid Applications from the EcoGen Series

  • Battery Option

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  • Extended Protection Plan

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  • Generac Standby Generator Saves the Day
    Learn about Generac Standby Generators and how they saved the day in a small mid west town.
  • Generac Standy Generator Commercial
    Watch the Generac Standby Generator Commercial.
  • Why Buy A Home Standby Generator
    We are all aware of storms that can knock down powers to millions, or record snow falls that bring down trees and power lines. Not matter where we live the electrical grid effects everybody. Most of the grid was built 50 years ago and only had a 40 year life expectancy. Make sure your not left in the dark with a backup standby generator.

6 kW 120V Steel Standby Generator for Off Grid Applications from the EcoGen Series

Product Features:

  • Designed to interact with off-grid renewable energy applications like solar and wind power (Not intended for grid-related utility backup use)
  • 6kW of power ensures your battery bank will always have a charge
  • Connects to existing liquid propane fuel supply for easy and efficient power
  • Covered under 3 Year / 2,000 hour limited warranty when used for off-grid alternative energy systems
  • Weather resistant RhinoCoat™ paint finish
  • Nexus Digital Controller with LCD display provides system status, monitors performance, and only charges the battery bank when necessary
  • UL Listed to UL2200 Engine / Generator Standard for Safety


  • Generac OHVI Engine: This two cylinder overhead valve industrial engine features plateau honed cylinder walls and plasma moly rings resulting in lower operational temperatures and longer engine life
  • Engine Displacement: 530cc
  • Engine RPM: 2600 (Revolutions per Minute)
  • Air Cooled
  • Includes Low Oil Alert and Automatic Shutdown

Product Technologies / Benefits:

  • Clean-burning propane fuel increases efficiency, contributes to longer engine life, and produces significantly less carbon monoxide than gasoline fueled engines
  • Extended Run Capability & Long Life: Exclusive premium oil-recovery and circulation system greatly reduces oil degradation, resulting in greatly extended maintenance intervals, with up to 500 hours between oil changes
  • Quiet Performance: The vertically mounted, belt driven engine operates at 2,600 RPM, producing a mere 52 dBA at normal load
  • Easy Installation and Integration: Engineered to easily integrate into the existing inverter and battery storage system

Product Specifications:

  • Overall Height: 29”
  • Overall Length: 48”
  • Overall Width: 25” 
  • Product Weight: 387 lbs
  • Noise Rating at Normal Operating Load: 52 dbA
  • LP Power Capacity: 6kW
  • LP Consumption (50% Load): 0.76 Gallons per hour

Additional Generac Links

Our SKU: Generac 5818

This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued

Generac 5818 Product Specifications

Reference Guide
Installation Guide
Specification Sheet
Amperage 50
Auto Shut Off Yes
Battery Included No
Battery Type 525 CCA
CARB approved No
CC 530
Control Type Digital
Cooling System Air Cooled
Enclosure Material Galvanneal Steel
Engine Brand Generac OHVI
Engine Type 4.0L 2-Cylinder
Frequency 60
Fuel Type Liquid Propane
Height 29
LP Consumption 0.85
Length 48
Low Oil Alert Yes
Manufacturer Warranty 3 Year Residential, 3 Year Residential (Engine)
Motor RPM 2600
Mounting Pad Material Composite
Noise Rating 52 dbA (Full Load)
Phase 1
UL Listed Yes
Voltage 120
Wattage 6000
Width 25

Installation Resource Center

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Generac 5818 Reviews

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