Choosing the best inverter generator for greenhouse use involves balancing power, noise levels, fuel efficiency, and portability. The Westinghouse iGen5000 stands out as the overall top pick thanks to its reliable performance and remote start feature, ideal for maintaining consistent lighting and equipment. The PowerSmart 3800 Watt Dual Fuel Inverter offers excellent fuel flexibility and safety features like a CO sensor, making it a strong contender for environmentally-conscious growers. However, tradeoffs include higher costs for premium models or slightly lower wattage in more budget-friendly options. Continue reading to explore the full lineup and find the best fit for your greenhouse needs.

Key Takeaways

  • High wattage capacity is essential for running multiple greenhouse systems simultaneously.
  • Dual fuel options provide flexibility and can extend runtime, especially during power outages.
  • Quiet operation is a top priority for greenhouses to avoid disturbing plants and workers.
  • Features like CO sensors and RV-ready outlets enhance safety and versatility.
  • Price varies significantly; balancing features with budget is key for long-term value.

Our Top Best Inverter Generator For Greenhouse Use Picks

WEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric StartWEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric StartBest Overall for Versatility and PowerPower: 4750 surge watts / 3800 running watts (gasoline), 4350 surge watts / 3500 running watts (propane)Voltage: 120V/240VEngine: 224cc 4-stroke OHVVIEW LATEST PRICESee Our Full Breakdown
PowerSmart 3800 Watt Dual Fuel Inverter Generator with CO Sensor and RV OutletPowerSmart 3800 Watt Dual Fuel Inverter Generator with CO Sensor and RV OutletBest for Quiet, Sensitive Electronics, and SafetyWattage: 3800 wattsFuel Type: Gasoline and PropaneOutput Wattage: 3800 Watts (Surge), 3100 Watts (Rated)VIEW LATEST PRICESee Our Full Breakdown
WEN 4800-Watt RV-Ready Portable Inverter Generator with Fuel Shut OffWEN 4800-Watt RV-Ready Portable Inverter Generator with Fuel Shut OffBest for High Power and VersatilityEngine: 224ccSurge Watts: 4800Rated Watts: 4000VIEW LATEST PRICESee Our Full Breakdown
2800-Watts Portable Inverter Generator for Home and Camping2800-Watts Portable Inverter Generator for Home and CampingBest Compact and Quiet Power for Small-Scale UsePower Output: 2800 peak / 2000 running wattsEngine: 79.8cc 4-stroke OHVFuel Tank Capacity: 1.1 gallonsVIEW LATEST PRICESee Our Full Breakdown
Westinghouse iGen5000 Portable Inverter Generator with Remote StartWestinghouse iGen5000 Portable Inverter Generator with Remote StartBest for Long Runtime and Remote ConveniencePeak Watts: 5000Rated Watts: 3900Fuel Tank Capacity: 3.4 gallonsVIEW LATEST PRICESee Our Full Breakdown
Power Equipment 4400 Watts Inverter Generator Gas Powered, Portable Open Frame with Low Noise and ECO ModePower Equipment 4400 Watts Inverter Generator Gas Powered, Portable Open Frame with Low Noise and ECO ModeBest Overall for Power and PortabilityWattage: 3400 watts (running), 4400 watts (peak)Fuel Type: GasolineVoltage: 120 VoltsVIEW LATEST PRICESee Our Full Breakdown
Champion Power Equipment 4000-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO ShieldChampion Power Equipment 4000-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO ShieldBest for Quiet, Sensitive Electronics and RV UseWeight: Less than 49 poundsStarting Watts: 4000Running Watts: 3000VIEW LATEST PRICESee Our Full Breakdown
2500-Watt Gas Powered Portable Inverter Generator with CO Sensor, Super Quiet for Home Backup, Emergency, Camping2500-Watt Gas Powered Portable Inverter Generator with CO Sensor, Super Quiet for Home Backup, Emergency, CampingBest for Compact Power and Emergency UsePower Output: 2500 peak / 1900 running wattsWeight: 39.7 lbsFuel Tank Capacity: 1.05 gallonsVIEW LATEST PRICESee Our Full Breakdown
Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator with Remote StartWestinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator with Remote StartBest for Dual Fuel Flexibility and Remote OperationPeak Watts: 4000Rated Watts: 3300Fuel Type: Gas & PropaneVIEW LATEST PRICESee Our Full Breakdown
Westinghouse iGen2800DFc Dual Fuel Portable Inverter Generator, 2800 Peak Watts, Quiet & LightweightWestinghouse iGen2800DFc Dual Fuel Portable Inverter Generator, 2800 Peak Watts, Quiet & LightweightBest for Lightweight, Dual Fuel FlexibilityPeak Power: 2800WRunning Power: 2200WFuel Types: Gasoline, PropaneVIEW LATEST PRICESee Our Full Breakdown
4400-Watts Inverter Generator, Gas Powered, RV Ready, EPA Compliant4400-Watts Inverter Generator, Gas Powered, RV Ready, EPA CompliantBest Overall for Versatile Greenhouse Backup and Emergency UsePeak Watts: 4400Running Watts: 3400Fuel Tank Capacity: 2 gallonsVIEW LATEST PRICESee Our Full Breakdown
WEN 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with CO WatchdogWEN 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with CO WatchdogBest for High Power and Fuel Flexibility in Larger GreenhousesEngine Displacement: 224ccFuel Types: Gasoline, PropaneSurge Power: 6800 watts (gas), 6000 watts (propane)VIEW LATEST PRICESee Our Full Breakdown
PowerSmart 4400-Watt Portable Inverter Generator, Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency BackupPowerSmart 4400-Watt Portable Inverter Generator, Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency BackupBest for Quiet, Efficient Greenhouse Backup with Safety FeaturesStarting Wattage: 4400WRated Wattage: 3600WFuel Tank Capacity: 1.6 gallonsVIEW LATEST PRICESee Our Full Breakdown
WEN 3600-Watt Dual Fuel Portable Inverter Generator with CO WatchdogWEN 3600-Watt Dual Fuel Portable Inverter Generator with CO WatchdogBest Compact, Quiet, Dual-Fuel Backup for Small GreenhousesPower: 3600 surge / 2900 rated wattsFuel Type: Gasoline, PropaneNoise Level: Comparable to normal conversationVIEW LATEST PRICESee Our Full Breakdown

More Details on Our Top Picks

  1. WEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start

    WEN 4,750-Watt 120V/240V Dual Fuel Portable Generator with Wheel Kit and Electric Start

    Best Overall for Versatility and Power

    View Latest Price

    This WEN model stands out for its dual fuel capability, allowing me to switch between gasoline and propane, which can be a real advantage in a greenhouse environment where fuel availability varies. Compared with the PowerSmart 3800-Watt inverter, it offers higher wattage and longer runtime, making it more suitable for running multiple devices or larger equipment. However, its weight and bulk make it less ideal for frequent repositioning, and it can be noisy during operation. The electric start simplifies use, especially when managing backup power, and the inclusion of a wheel kit enhances portability despite its size. This generator is best suited for those needing substantial power with flexibility in fuel sources, but it may be overkill for small-scale or very portable applications.

    Pros:
    • Dual fuel capability for flexible power sources
    • Electric start for easy operation
    • Long runtime of up to 11 hours at half load
    • Includes wheel kit and accessories for portability
    Cons:
    • Relatively heavy and bulky to transport
    • Can be noisy during operation
    • Requires regular maintenance for optimal performance

    Best for: Greenhouse operators requiring high wattage, dual fuel flexibility, and occasional mobility for larger setups

    Not ideal for: Small-scale growers or those needing lightweight, ultra-quiet operation for frequent repositioning

    • Power:4750 surge watts / 3800 running watts (gasoline), 4350 surge watts / 3500 running watts (propane)
    • Voltage:120V/240V
    • Engine:224cc 4-stroke OHV
    • Tank Capacity:4 gallons
    • Run Time:Up to 11 hours at half load
    • Outlets:Two 120V GFCI, 120V/240V twist lock, 12V DC

    Bottom line: This generator is ideal for greenhouse setups that need reliable, high-capacity power with fuel flexibility, but it’s less suited for portable or noise-sensitive environments.

  2. PowerSmart 3800 Watt Dual Fuel Inverter Generator with CO Sensor and RV Outlet

    PowerSmart 3800 Watt Dual Fuel Inverter Generator with CO Sensor and RV Outlet

    Best for Quiet, Sensitive Electronics, and Safety

    View Latest Price

    This PowerSmart inverter generator emphasizes quiet operation and safety, making it a good fit for greenhouses where noise can disturb plants or workers. Its dual-fuel setup offers flexibility, similar to the WEN, but with a slightly lower wattage capacity, which limits its use to smaller setups or backup power for essential devices. The built-in CO sensor adds a layer of safety, comparable to the Westinghouse iGen5000, but its runtime of only four hours might require frequent refueling during extended power needs. At 50.7 lbs, it’s portable but less so than smaller models, and its higher price reflects its advanced safety features. This generator is best for those prioritizing noise reduction, electronic safety, and moderate power, but it’s less suitable for large-scale or high-demand applications.

    Pros:
    • Quiet operation suitable for sensitive environments
    • Built-in CO sensor enhances safety
    • Dual-fuel flexibility for fuel options
    • Multiple outlets including RV-ready
    Cons:
    • Limited runtime of about 4 hours on a full tank
    • Relatively heavy at 50.7 lbs, less portable
    • Higher cost compared to simpler models

    Best for: Greenhouse owners needing quiet, safe, and portable power for sensitive electronics or small-scale operations

    Not ideal for: Growers requiring high wattage or extended runtime for large equipment or continuous operation

    • Wattage:3800 watts
    • Fuel Type:Gasoline and Propane
    • Output Wattage:3800 Watts (Surge), 3100 Watts (Rated)
    • Engine:149cc 4-Stroke OHV
    • Runtime:4 hours
    • Weight:50.7 lbs

    Bottom line: This inverter generator is best for greenhouse settings that value quiet, safety, and electronics protection over high power or extended runtime.

  3. WEN 4800-Watt RV-Ready Portable Inverter Generator with Fuel Shut Off

    WEN 4800-Watt RV-Ready Portable Inverter Generator with Fuel Shut Off

    Best for High Power and Versatility

    View Latest Price

    The WEN 4800-Watt inverter offers a solid balance of power and portability, making it suitable for larger greenhouse setups that need clean, stable power for multiple devices. Its 224cc engine and 4800 surge watts outperform many smaller models like the PowerSmart, providing more headroom for running larger equipment or multiple tools simultaneously. The inclusion of a fuel shutoff and CO sensor adds safety and longevity, similar to the Westinghouse iGen5000, but with a slightly lower maximum wattage. Though still portable, it’s heavier than compact models, which could challenge frequent repositioning. It’s best for operators who need a reliable, high-capacity generator that remains relatively easy to move around on-site, but it might be overkill for very small or highly portable needs.

    Pros:
    • High surge wattage for demanding equipment
    • Multiple outlets including USB and RV
    • Fuel shutoff and CO sensor for safety and durability
    • Portable with wheels and handle
    Cons:
    • Heavier than smaller inverter generators
    • Limited runtime without refueling
    • Can be noisy at higher loads

    Best for: Greenhouse managers requiring high power, multiple outlets, and safety features for larger or more complex setups

    Not ideal for: Small-scale growers seeking lightweight, ultra-quiet solutions or minimal setup

    • Engine:224cc
    • Surge Watts:4800
    • Rated Watts:4000
    • Receptacles:Four 120V, one RV, USB, 12V DC
    • Features:Fuel shutoff, CO shutdown sensor
    • Warranty:3 years

    Bottom line: This generator is well-suited for larger greenhouse operations needing high power with safety features, though it’s less ideal for frequent relocation or small-scale use.

  4. 2800-Watts Portable Inverter Generator for Home and Camping

    2800-Watts Portable Inverter Generator for Home and Camping

    Best Compact and Quiet Power for Small-Scale Use

    View Latest Price

    This lightweight, 2800-watt inverter generator offers excellent portability and quiet operation, making it an ideal choice for small greenhouses or supplemental power. Its 79.8cc engine and 39-pound weight make it easy to move around, especially compared to larger models like the WEN 4800. With a runtime of up to 9 hours at 25% load, it can sustain basic needs without frequent refueling. Its multiple outlets, including USB and Type-C, add versatility, similar to the PowerSmart but at a significantly lower noise level—under 58 dBA. While it can handle most small to medium greenhouse devices, it might struggle with larger equipment or extended power demands. This pick is perfect for growers seeking quiet, portable power for light tasks, but it’s not suited for high-demand applications.

    Pros:
    • Quiet operation at under 58 dBA
    • Lightweight and portable at 39 lbs
    • Multiple outlets including USB and Type-C
    • Powerful enough for standard devices
    Cons:
    • Limited runtime of about 9 hours at a quarter load
    • Potential factory gas smell initial emission
    • Requires additional kit for high-altitude operation

    Best for: Small-scale greenhouse operators needing quiet, portable power with multiple outlet options

    Not ideal for: Growers with larger equipment or those requiring long runtime without refueling

    • Power Output:2800 peak / 2000 running watts
    • Engine:79.8cc 4-stroke OHV
    • Fuel Tank Capacity:1.1 gallons
    • Run Time:Up to 9 hours at 25% load
    • Noise Level:Under 58 dBA
    • Weight:39 lbs

    Bottom line: This generator excels for small greenhouse setups where quiet, portable, and versatile power is needed, but it isn’t designed for high power or continuous heavy use.

  5. Westinghouse iGen5000 Portable Inverter Generator with Remote Start

    Westinghouse iGen5000 Portable Inverter Generator with Remote Start

    Best for Long Runtime and Remote Convenience

    View Latest Price

    The Westinghouse iGen5000 offers a compelling combination of long runtime, remote start, and high power, making it highly suitable for greenhouse environments where reliability and ease of use are key. Its 5000 surge watts surpass many models, including the WEN 4800, providing extra margin for demanding equipment. The remote start feature adds convenience, especially during cold mornings or when managing multiple tasks. With a noise level of only 52 dBA, it maintains a quiet profile, comparable to the PowerSmart, but at a higher price point. Its 3.4-gallon tank supports up to 18 hours of operation, reducing refueling stops. While heavier than smaller models, its portability features make it manageable for occasional repositioning. This generator is best for operators who prioritize long runtime, remote operation, and high power, but it may be too costly for small or infrequent use.

    Pros:
    • Long runtime of up to 18 hours on a full tank
    • Remote electric start for convenience
    • Quiet operation at 52 dBA
    • High surge wattage for demanding equipment
    Cons:
    • Heavier than smaller, portable models
    • Higher price compared to basic generators
    • Residual fuel or oil odor possible

    Best for: Growers needing extended runtime, remote start, and high power for larger greenhouse setups

    Not ideal for: Small growers who prefer lightweight, ultra-portable options or have a tight budget

    • Peak Watts:5000
    • Rated Watts:3900
    • Fuel Tank Capacity:3.4 gallons
    • Run Time:Up to 18 hours
    • Noise Level:52 dBA
    • Start Type:Remote electric, push-button

    Bottom line: This model suits greenhouse operators needing long operation hours and remote start capability, though it comes at a higher price and weight.

  6. Power Equipment 4400 Watts Inverter Generator Gas Powered, Portable Open Frame with Low Noise and ECO Mode

    Power Equipment 4400 Watts Inverter Generator Gas Powered, Portable Open Frame with Low Noise and ECO Mode

    Best Overall for Power and Portability

    View Latest Price

    This inverter generator stands out for its combination of high power output—up to 4400 peak watts—and impressive runtime of 14 hours on a compact 2-gallon tank. Compared with the Westinghouse iGen2800DFc, it offers significantly more wattage, making it suitable for larger greenhouse setups that require consistent, reliable power. Its quiet operation under 72 dBA is a major plus for sensitive plant environments, and portability is enhanced by a lightweight frame at just 56 pounds. However, its gasoline-only fuel source limits flexibility, and some users report a slight gas smell upon arrival. This pick is ideal for greenhouse growers needing substantial power without sacrificing mobility, but not for those seeking multi-fuel options or ultra-quiet operation at extremely low noise levels.

    Pros:
    • High peak wattage suitable for larger equipment
    • Long runtime of 14 hours on a small tank
    • Quiet operation under 72 dBA
    • Lightweight and portable at 56 lbs
    Cons:
    • Limited to gasoline fuel, no alternative options
    • Slight gas smell may be noticeable upon arrival

    Best for: Growers who need reliable, high-capacity power with portability for larger greenhouse setups

    Not ideal for: Beginners or those preferring dual-fuel options due to its gasoline-only design

    • Wattage:3400 watts (running), 4400 watts (peak)
    • Fuel Type:Gasoline
    • Voltage:120 Volts
    • Tank Volume:7.57 Liters
    • Runtime:14 hours
    • Engine Power:Maximum 4.4 Kilowatts

    Bottom line: This generator offers a powerful, portable solution for greenhouse operators who need substantial, reliable power without excess noise.

  7. Champion Power Equipment 4000-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO Shield

    Champion Power Equipment 4000-Watt RV Ready Portable Inverter Generator with Quiet Technology and CO Shield

    Best for Quiet, Sensitive Electronics and RV Use

    View Latest Price

    Compared with larger, more powerful options like the Power Equipment 4400 Watts generator, the Champion 4000-Watt model emphasizes portability and noise reduction, operating at just 64 dBA. Its lightweight design under 49 pounds and RV-ready outlets make it ideal for greenhouse growers who also want to use it for camping or RV power. The CO Shield safety technology enhances its appeal for enclosed or semi-enclosed greenhouse environments where air quality is a concern. However, its runtime of up to 10 hours at 25% load is shorter than larger models, and parallel operation requires an additional kit. This generator makes the most sense for users prioritizing quiet, safe operation and multi-use versatility, but not for those who need extended runtime or higher wattage for large-scale equipment.

    Pros:
    • Quiet operation at 64 dBA
    • Lightweight and portable for easy transport
    • Dual fuel capability for flexibility
    • Safety features like CO Shield
    Cons:
    • Limited runtime of 10 hours at 25% load
    • Parallel kit sold separately, adding cost

    Best for: Greenhouse growers needing a quiet, safe generator for sensitive electronics and occasional backup use

    Not ideal for: Large-scale operations requiring extended runtime or high power for heavy equipment

    • Weight:Less than 49 pounds
    • Starting Watts:4000
    • Running Watts:3000
    • Tank Capacity:1.54 gallons
    • Noise Level:64 dBA
    • Fuel Technology:Inverter, CO Shield

    Bottom line: Ideal for growers who prioritize quiet, safe, and versatile power for sensitive electronics and recreational use.

  8. 2500-Watt Gas Powered Portable Inverter Generator with CO Sensor, Super Quiet for Home Backup, Emergency, Camping

    2500-Watt Gas Powered Portable Inverter Generator with CO Sensor, Super Quiet for Home Backup, Emergency, Camping

    Best for Compact Power and Emergency Use

    View Latest Price

    This 2500-watt inverter generator offers a compact, lightweight design weighing only 39.7 lbs, making it easy to move around a greenhouse or outdoor space. Its runtime of up to 11 hours on 1.05 gallons supports extended use during emergencies or outdoor projects. While less powerful than larger models like the Champion or Power Equipment generators, it still provides enough wattage for essential systems and sensitive electronics, thanks to its less than 3% THD. Its noise level of 69 dB is slightly higher but still manageable in a greenhouse setting. The main tradeoff involves its smaller fuel tank, requiring more frequent refueling for extended operations. This model suits growers with modest power needs or those prioritizing portability and quiet operation.

    Pros:
    • Very lightweight and portable
    • Long runtime of 11 hours at low load
    • Quiet operation at 69 dB
    • Good for sensitive electronics
    Cons:
    • Limited to 11 hours at 25% load, shorter at higher loads
    • Small fuel tank may require frequent refueling

    Best for: Growers needing lightweight, reliable backup power for small equipment or sensitive electronics

    Not ideal for: Large-scale greenhouse operations requiring higher wattage or longer runtime

    • Power Output:2500 peak / 1900 running watts
    • Weight:39.7 lbs
    • Fuel Tank Capacity:1.05 gallons
    • Runtime:Up to 11 hours
    • Noise Level:69 dB
    • Additional Features:CO sensor, USB ports

    Bottom line: A practical choice for growers needing portable, quiet backup power for small systems and sensitive devices.

  9. Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator with Remote Start

    Westinghouse 4000 Peak Watt Super Quiet Dual Fuel Portable Inverter Generator with Remote Start

    Best for Dual Fuel Flexibility and Remote Operation

    View Latest Price

    Compared with the gas-only Power Equipment 4400 Watts generator, the Westinghouse 4000 Peak Watt model offers greater versatility with dual fuel capability—gas or propane—and the convenience of remote start. Its ultra-quiet operation at less than 52 dBA makes it suitable for enclosed greenhouse environments where minimizing noise disturbance is critical. Its 3-year warranty and digital display add to its appeal for serious growers seeking durable, easy-to-monitor power sources. However, some details like weight and dimensions are not specified, and its 7-hour runtime on a small tank may limit continuous use during longer sessions. This generator is most appropriate for growers who want flexible fuel options and remote operation but don’t require all-day runtime on a single tank.

    Pros:
    • Exceptionally quiet at under 52 dBA
    • Dual fuel allows greater flexibility
    • Remote electric start for convenience
    • Digital monitor for real-time data
    Cons:
    • Limited runtime of about 7 hours on small tank
    • Weight and dimensions not specified

    Best for: Growers seeking a versatile, quiet generator with remote start and dual fuel capability for occasional or portable use

    Not ideal for: Large operations needing extended runtime or higher wattage for heavy equipment

    • Peak Watts:4000
    • Rated Watts:3300
    • Fuel Type:Gas & Propane
    • Run Time:Up to 7 hours
    • Noise Level:52 dBA
    • Start Type:Remote, Electric, Recoil

    Bottom line: Perfect for growers who want a quiet, flexible, and remotely operable generator for occasional use and sensitive environments.

  10. Westinghouse iGen2800DFc Dual Fuel Portable Inverter Generator, 2800 Peak Watts, Quiet & Lightweight

    Westinghouse iGen2800DFc Dual Fuel Portable Inverter Generator, 2800 Peak Watts, Quiet & Lightweight

    Best for Lightweight, Dual Fuel Flexibility

    View Latest Price

    This model offers a balanced mix of portability and power, with 2800 peak watts and 2200 watts at rated load. Its low noise level of 52 dBA makes it suitable for greenhouse environments where noise reduction is desired. Weighing 45 pounds, it’s easy to carry around and provides up to 12 hours of runtime on a 1.1-gallon tank—comparable to larger units like the Power Equipment 4400 Watts but with less power capacity. The dual fuel capability adds flexibility for extended use, especially in areas where gas availability is limited. Its parallel capability allows for increased power, but that requires additional cables and setup. This generator makes sense for growers seeking a portable, quiet, and flexible power source for small to medium operations, though it doesn’t match the wattage of larger units for demanding needs.

    Pros:
    • Lightweight at 45 pounds for easy transport
    • Quiet operation at 52 dBA
    • Dual fuel flexibility for extended runtime
    • Parallel capability for increased power
    Cons:
    • Limited to 12 hours runtime at 25% load
    • Parallel cables sold separately, adding cost

    Best for: Growers who need a lightweight, quiet portable generator with dual fuel options for small to medium greenhouse setups

    Not ideal for: Large-scale operations or those needing continuous high wattage for heavy equipment

    • Peak Power:2800W
    • Running Power:2200W
    • Fuel Types:Gasoline, Propane
    • Run Time:Up to 12 hours
    • Noise Level:52 dBA
    • Parallel Capability:Yes (parallel cables sold separately)

    Bottom line: This generator provides a portable, quiet, and flexible power solution tailored for smaller greenhouse environments and growers valuing ease of use.

  11. 4400-Watts Inverter Generator, Gas Powered, RV Ready, EPA Compliant

    4400-Watts Inverter Generator, Gas Powered, RV Ready, EPA Compliant

    Best Overall for Versatile Greenhouse Backup and Emergency Use

    View Latest Price

    This generator stands out for its robust 4400 peak watts and 3400 running watts, making it a strong choice for greenhouse environments that require reliable power during outages or when running multiple devices. Compared with the WEN 6800-watt dual fuel model, it offers a lighter weight of 56 lbs, enhancing portability for greenhouse setups that may need repositioning. However, its 2-gallon fuel tank limits extended operation without refueling, which might be a concern during long power outages or high-demand days. Its inverter technology ensures clean power suitable for sensitive equipment like grow lights or climate control systems. The 14-hour runtime at 25% load provides decent endurance, though it falls short of larger models. Overall, this pick is ideal for those prioritizing portability and safety in smaller to medium-sized greenhouses.

    Pros:
    • Powerful enough for emergency backup and multiple devices
    • Lightweight and portable at only 56 lbs
    • Fuel-efficient runtime of 14 hours on a small tank
    Cons:
    • Limited fuel capacity for prolonged use without refueling
    • Slight gas smell upon receipt may require initial airing

    Best for: Greenhouse owners needing reliable, portable backup power with sensitive electronics in mind

    Not ideal for: Large commercial greenhouses requiring extended runtime or higher wattage capacity

    • Peak Watts:4400
    • Running Watts:3400
    • Fuel Tank Capacity:2 gallons
    • Runtime at 25% load:14 hours
    • Weight:56 lbs
    • Outlets:2x 120V AC, 1x 30A RV, 1x 12V DC

    Bottom line: This inverter generator suits small to medium greenhouses seeking a portable, reliable backup with clean power.

  12. WEN 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with CO Watchdog

    WEN 6800-Watt Dual Fuel RV-Ready Electric Start Portable Inverter Generator with CO Watchdog

    Best for High Power and Fuel Flexibility in Larger Greenhouses

    View Latest Price

    Compared to the 4400-watt models, the WEN 6800-watt generator offers significantly higher surge and rated watts, making it ideal for larger greenhouse setups or multiple climate systems. Its dual-fuel capability enables running on gasoline or propane, providing flexibility during long outages or when fuel availability varies. The inclusion of a CO Watchdog sensor adds a safety layer, especially important in enclosed greenhouse environments. Despite its power advantage, it’s heavier at a substantial weight, which could hinder repositioning in smaller spaces. The 3-year warranty and multiple outlets make it suitable for frequent use and diverse power needs. The setup is more complex than smaller models, so it’s better suited for users comfortable with larger, more sophisticated equipment.

    Pros:
    • High surge and rated wattage for demanding applications
    • Dual fuel flexibility extends operational options
    • Built-in CO sensor enhances safety
    Cons:
    • Heavier and bulkier, less portable for frequent repositioning
    • Higher price point for advanced features

    Best for: Greenhouse operators needing high wattage, dual-fuel options, and safety features for demanding environments

    Not ideal for: Small-scale greenhouses or hobbyists seeking lightweight, simple backup options

    • Engine Displacement:224cc
    • Fuel Types:Gasoline, Propane
    • Surge Power:6800 watts (gas), 6000 watts (propane)
    • Rated Power:5100 watts (gas), 4500 watts (propane)
    • Receptacles:L14-30R 120V/240V, two 3-prong 120V, TT-30R RV, 12V DC, USB
    • Warranty:3 years

    Bottom line: This generator is best for larger greenhouses requiring substantial power, fuel versatility, and safety features, but less suitable for small setups.

  13. PowerSmart 4400-Watt Portable Inverter Generator, Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency Backup

    PowerSmart 4400-Watt Portable Inverter Generator, Gas Powered, CO-Sensor, Lightweight & Quiet for Home Use and Emergency Backup

    Best for Quiet, Efficient Greenhouse Backup with Safety Features

    View Latest Price

    While it matches the 4400-watt power capacity of the first pick, the PowerSmart model emphasizes quiet operation and safety, making it a practical choice for greenhouses where noise might disturb plants or neighbors. Its 76 dB noise level at 23 feet is notably quieter than many competitors, and the CO-sensor adds peace of mind for enclosed environments. The 1.6-gallon tank limits runtime to around 11 hours at 25% load, slightly less than larger units, but its portability at 61.29 lbs makes repositioning easier. This generator excels for small to medium greenhouses that prioritize low noise and safety, although its limited runtime at higher loads may require additional fuel management.

    Pros:
    • Quiet operation at 76 dB, suitable for noise-sensitive areas
    • Built-in CO sensor enhances safety
    • Portable and lightweight at 61.29 lbs
    Cons:
    • Runtime limited to about 11 hours on 1.6 gallons
    • Less power for very demanding setups

    Best for: Greenhouse owners needing a quiet, safe backup power source for sensitive environments

    Not ideal for: Large greenhouses with high power demands or extended outage needs

    • Starting Wattage:4400W
    • Rated Wattage:3600W
    • Fuel Tank Capacity:1.6 gallons
    • Runtime at 25% load:11 hours
    • Weight:61.29 lbs
    • Noise Level:76 dB

    Bottom line: This generator offers a quiet, safe backup solution ideal for smaller greenhouses or sensitive environments where noise and safety are priorities.

  14. WEN 3600-Watt Dual Fuel Portable Inverter Generator with CO Watchdog

    WEN 3600-Watt Dual Fuel Portable Inverter Generator with CO Watchdog

    Best Compact, Quiet, Dual-Fuel Backup for Small Greenhouses

    View Latest Price

    Compared to the 4400-watt models, the WEN 3600-watt generator offers slightly less power but shines in portability and quiet operation, making it a good fit for small greenhouses with limited power needs. Its dual-fuel capability allows running on gasoline or propane, providing flexibility during outages. The CO Watchdog safety feature adds reassurance in enclosed spaces. At a lighter weight, it’s easier to move around, but its lower wattage limits its use to smaller setups or as a secondary backup. The price point is attractive for hobbyists or small-scale growers, though the runtime on a single tank may be short for prolonged outages. Overall, this model balances power, safety, and portability effectively for smaller greenhouses.

    Pros:
    • Quiet operation comparable to normal conversation
    • Dual fuel capability offers flexible fuel choices
    • Lightweight and portable for easy repositioning
    Cons:
    • Limited runtime on a single tank
    • Lower maximum power limits larger greenhouse applications

    Best for: Small greenhouses requiring quiet operation, dual fuel options, and portability

    Not ideal for: Large greenhouses with high power demands or extended outage requirements

    • Power:3600 surge / 2900 rated watts
    • Fuel Type:Gasoline, Propane
    • Noise Level:Comparable to normal conversation
    • Outlets:Two 120V, one RV, one 12V DC, two USB
    • CO Safety:CO Watchdog
    • Warranty:3 years

    Bottom line: This generator is ideal for small greenhouses seeking quiet, dual-fuel backup with easy mobility and safety features.

best inverter generator for greenhouse use

How We Picked

Our evaluation focused on performance, reliability, noise levels, fuel efficiency, safety features, and portability. We prioritized models with stable inverter technology capable of supporting sensitive equipment like grow lights and climate controls. Safety features such as CO sensors and automatic shutoff mechanisms were essential, given the enclosed environment of a greenhouse. We also considered user-friendly features like remote start and lightweight design for ease of use. The ranking reflects a combination of power output, safety, ease of operation, and value for different types of greenhouse setups.

Factors to Consider When Choosing Best Inverter Generator For Greenhouse Use

Selecting the right inverter generator for a greenhouse involves more than just wattage. You need to consider how much power your equipment demands, as well as safety, noise, and fuel options. The right generator should provide reliable backup power without disrupting your climate control systems or harming plant health. Here are key factors to keep in mind to make an informed choice.

Power Output and Capacity

Assess your greenhouse’s total power needs carefully. Inverter generators vary from around 2000 to over 5000 watts. To avoid overloads, list all equipment you intend to run simultaneously, including grow lights, fans, and sensors. Opting for a slightly higher wattage capacity than your current needs can provide room for future expansion and prevent strain on the generator.

Fuel Type and Efficiency

Dual fuel models offer flexibility, allowing you to switch between gasoline and propane, which can be advantageous during long outages or for cost savings. Consider the availability and cost of fuels in your area. Fuel efficiency is also critical in prolonging runtime, especially if your greenhouse requires continuous power over extended periods.

Noise Levels

Greenhouses benefit from quieter operation to avoid disturbing plants or workers. Look for models rated for low decibel output, typically under 60 dB. Features like sound insulation or quiet technology can make a significant difference, particularly if the generator will run for many hours each day.

Safety Features

Enclosed environments demand safety measures such as carbon monoxide sensors, automatic shutoff, and RV-ready outlets for safe connection to climate systems. These features help prevent accidents and ensure the generator can be used safely around sensitive equipment and personnel.

Portability and Size

If your greenhouse setup requires moving the generator between different areas, weight and portability matter. Compact, lightweight models with wheels are easier to position and store. Also consider how much space you have for storage, especially if you plan to keep the generator on-site year-round.

Frequently Asked Questions

How much power do I need to run my greenhouse equipment?

To determine your power needs, list all essential equipment, noting their wattage ratings. Add these values together to get a total requirement, then choose a generator with at least 20-25% more capacity to handle startup surges and future expansions. This approach prevents overloads and ensures consistent operation.

Is a dual fuel generator worth the extra cost for a greenhouse?

Dual fuel generators offer significant flexibility, allowing you to switch between gasoline and propane. This can be especially useful in a greenhouse setting where fuel availability and cost may fluctuate. While they tend to be more expensive initially, the ability to adapt to different fuel sources can save money and reduce downtime during outages.

How important is noise level for greenhouse use?

Low noise operation is very important in enclosed or semi-enclosed greenhouse environments. Excess noise can disturb plant growth and worker concentration. Choosing a generator rated for under 60 dB can make your greenhouse a more comfortable and productive space, especially if the generator runs for extended periods.

What safety features should I look for?

Safety features like carbon monoxide sensors, automatic shutoff, and RV compatibility are key for greenhouse use. CO sensors prevent dangerous buildup of fumes, while automatic shutoff activates if unsafe conditions are detected. These features help protect both your plants and personnel, ensuring safe, continuous operation.

Can I run my greenhouse on a small inverter generator?

It depends on your equipment’s total wattage. Small inverter generators around 2000-3000 watts are suitable for basic operations like small fans or sensors but may not support larger grow lights or climate controls simultaneously. For comprehensive use, a higher-capacity model is usually necessary to meet all power demands reliably.

Conclusion

For growers seeking a reliable all-around performer, the Westinghouse iGen5000 offers a robust mix of power, quiet operation, and user-friendly features, making it ideal as the best overall choice. If budget is a concern, the PowerSmart 3800 Watt Dual Fuel Inverter provides excellent value with fuel flexibility and safety features. For those prioritizing ease of use and safety in a smaller setup, the Champion 4000-Watt RV-Ready Generator is a great option. Beginners or those with modest needs should consider lighter models like the Westinghouse iGen2800DFc, while larger, more demanding greenhouse operations might require the higher wattage WEN or WEN dual fuel options. Your choice hinges on your specific power needs, safety considerations, and budget constraints.

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