Könner & Söhnen KS 4000iEHS CO 4000W Dual Fuel Inverter Generator
TheKönner & Söhnen KS 4000iEHS COis a powerful and portable4000W dual-fuel inverter generatordesigned for emergency backup power, RVs, camping, jobsites, tailgating, outdoor use, and other applications where clean and reliable portable electricity is essential. This lightweight quite generator can power just about anything. Producing up to4,000 starting watts and 3,500 running watts, this inverter generator combines gasoline and LPG/propane fuel flexibility with electric start, pure sine wave power, Eco Mode, parallel capability, and built-in carbon monoxide protection.
The KS 4000iEHS CO delivers stable120V, 60Hz inverter powersuitable for sensitive electronics as well as appliances, tools, refrigerators, televisions, computers, chargers, and other equipment within the generator's rated capacity.
Gasoline & Propane Dual Fuel Generator
TheKS 4000iEHS CO dual fuel generatorcan operate on either gasoline or LPG/propane, giving you more options when preparing for an outage, traveling, camping, or working away from utility power.
Apropane hose with reducer/regulator is included, eliminating the need for a separate aftermarket fuel conversion kit. Simply follow the manufacturer's instructions for connecting an approved propane supply.
Dual fuel capability is particularly useful for emergency preparedness because propane can be stored for long periods and gives you an alternative when gasoline is difficult to obtain.
4,000 Starting Watts & 3,500 Running Watts
On gasoline, the Könner & Söhnen KS 4000iEHS CO delivers up to4,000 starting watts and 3,500 running watts. This makes it an excellent portable power solution for operating a variety of essential equipment.
Depending on individual starting and running wattage requirements, the generator can power equipment such as:
Refrigerators and freezers
Televisions
Computers and electronics
Lights
Battery chargers
Fans
Small appliances
Power tools
RV equipment
Camping equipment
Emergency communications equipment
Always calculate the combined running and starting wattage of connected equipment before use.
Clean Inverter Power for Sensitive Electronics
Unlike a traditional conventional generator, the KS 4000iEHS CO uses inverter technology to provide a stable120V 60Hz pure sine wave output.
This clean electrical output makes the generator an excellent choice for powering sensitive electronics including laptops, televisions, smartphones, chargers, communications equipment, and other electronic devices.
Electric Start with Recoil Backup
Starting the KS 4000iEHS CO is easy thanks to its convenientelectric start system. A traditional recoil starting system is also included as a backup.
The generator features a convenient3-in-1 Start Dialthat combines the fuel valve, choke, and electric starting functions into a simplified control system.
Carbon Monoxide Safety Shutoff
The KS 4000iEHS CO includes an integratedcarbon monoxide monitoring and automatic shutoff system. The CO sensor monitors for potentially dangerous carbon monoxide accumulation around the operating generator and automatically shuts down the engine when elevated CO levels are detected.
Important:A carbon monoxide shutoff system does not make a portable generator safe for indoor operation. Portable generators must always be operated outdoors and positioned according to the manufacturer's safety instructions, away from occupied buildings, doors, windows, vents, garages, and other enclosed areas.
Eco Mode for Better Fuel Efficiency
The integratedEco Modeallows the engine to automatically reduce speed when electrical demand is low. According to Könner & Söhnen, Eco Mode can reduce fuel consumption by up to50% under small loads.
This helps conserve fuel, reduce unnecessary engine speed, and extend operating time when you're powering lighter loads.
Up to 7.8 Hours of Gasoline Runtime
The KS 4000iEHS CO features a large3.2-gallon (12-liter) gasoline tankand provides up to approximately7.8 hours of gasoline runtime at 50% loadunder the manufacturer's specified test conditions.
Actual runtime varies according to electrical load, fuel quality, operating conditions, temperature, altitude, maintenance, and Eco Mode use.
Quiet Enclosed Inverter Generator
The generator's enclosed housing helps reduce operating noise compared with many traditional open-frame generators. Könner & Söhnen lists a sound pressure level of approximately62 dB at 23 feetunder its specified test conditions.
This makes the KS 4000iEHS CO well suited for RVs, camping, outdoor activities, emergency backup, and other applications where reduced generator noise is desirable.
Parallel Ready for Additional Power
Need more power in the future? The KS 4000iEHS CO isparallel ready.
Using a compatible Könner & Söhnen parallel connection device, compatible parallel-ready K&S inverter generators can be connected to provide increased available power for larger electrical loads.
Multifunction LED Display
The integrated LED display provides important generator operating information and warning indicators, including:
Output power
Voltage
Frequency
Working hours
Fuel level
CO sensor failure warning
Carbon monoxide shutdown indicator
Low oil alarm
Overload alarm
Output indicator
100% Copper Alternator Winding
Könner & Söhnen inverter generators use a robust brushless alternator with100% copper winding. The compact permanent-magnet alternator is engineered to provide dependable electrical output while supporting the generator's portable inverter design.
Portable Design with Wheels & Handle
The KS 4000iEHS CO weighs approximately88 lbs.An integrated transportation system with wheels and a lifting handle makes it easier to move the generator around your home, RV, campsite, garage, or jobsite.
Könner & Söhnen KS 4000iEHS CO Specifications
Model | KS 4000iEHS CO |
Generator Type | Dual Fuel Inverter Generator |
Fuel | Gasoline / LPG Propane |
Voltage | 120V |
Frequency | 60 Hz |
Starting Watts | 4,000W |
Running Watts | 3,500W |
Maximum Current | 33A |
Power Factor | 1 |
Engine | K&S KS 240i-H |
Engine Power | 7.5 HP |
Engine Displacement | 223cc |
Engine Type | Single-cylinder, four-stroke, air-cooled |
Starting System | Electric / Recoil |
Fuel Tank | 3.2 gal. (12 L) |
Gasoline Runtime @ 50% Load | Up to 7.8 hours |
Outlets | 2 × 120V 20A, 1 × 120V 30A |
DC Output | 12V / 8.3A |
USB Outputs | 5V/1A, 5V/2.1A |
CO Shutoff | Yes |
Parallel Ready | Yes |
Alternator Winding | Copper |
Protection Class | IP23M |
Noise Level | 62 dB LpA at 23 ft. |
Crankcase Capacity | 20 fl. oz. (0.6 L) |
Dimensions | 27.5" × 18.7" × 22.4" |
Net Weight | 88 lbs. |
SKU | 4260405366637 |
Barcode | 4260405366637 |
What's Included?
Könner & Söhnen KS 4000iEHS CO inverter generator
Propane hose with reducer/regulator
Owner's manual
Spark plug wrench
PH2 screwdriver
Oil funnel
Engine oil and gasoline are not included.Engine oil must be added before initial startup. Always follow the manufacturer's owner's manual for proper fuel, oil, maintenance, and operating procedures.
Frequently Asked Questions
How many watts does the KS 4000iEHS CO produce?
The Könner & Söhnen KS 4000iEHS CO produces up to4,000 starting watts and 3,500 running wattson gasoline.
Does the KS 4000iEHS CO run on propane?
Yes. The KS 4000iEHS CO is a dual fuel inverter generator designed to operate on either gasoline or LPG/propane. A propane hose with reducer/regulator is included.
Is the KS 4000iEHS CO a 120V or 240V generator?
The KS 4000iEHS CO is a120V generator. It does not provide 240V output. If you require 120V/240V output, consider a compatible higher-output Könner & Söhnen model designed for 240V applications.
Can the KS 4000iEHS CO power sensitive electronics?
Yes. Its inverter technology produces a stable pure sine wave output designed for powering sensitive electronic devices including computers, televisions, smartphones, chargers, and communications equipment.
Does the KS 4000iEHS CO have electric start?
Yes. It includes electric start for convenient operation as well as recoil starting for backup.
Does this generator have a carbon monoxide shutoff?
Yes. An integrated CO sensor monitors carbon monoxide levels around the generator and automatically shuts down the engine when elevated CO levels are detected. The generator must still always be operated outdoors according to the manufacturer's safety instructions.
How long does the KS 4000iEHS CO run on gasoline?
Könner & Söhnen rates the generator for up to approximately7.8 hours at 50% loadon gasoline. Actual runtime depends on electrical load and operating conditions.
Can two Könner & Söhnen inverter generators be connected together?
The KS 4000iEHS CO is parallel ready. A compatible Könner & Söhnen parallel connection device can be used with compatible K&S inverter generator models to increase available power.
How loud is the KS 4000iEHS CO?
The manufacturer lists a sound pressure level of approximately62 dB at 23 feetunder its specified testing conditions.
How much does the KS 4000iEHS CO weigh?
The generator weighs approximately88 lbs.Integrated wheels and a transport handle help make it easier to move.
What type of oil does the KS 4000iEHS CO use?
The generator ships without engine oil. The manufacturer recommends10W-30 or 10W-40 four-stroke gasoline engine oil. Always check the oil level before operation and follow the owner's manual.
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