Könner & Söhnen KS 4000iEHS CO 4000W Dual Fuel Inverter Generator

Könner & Söhnen KS 4000iEHS CO 4000W Dual Fuel Inverter Generator

The Könner & Söhnen KS 4000iEHS CO is a powerful and portable 4000W dual-fuel inverter generator designed 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 to 4,000 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 stable 120V, 60Hz inverter power suitable 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

The KS 4000iEHS CO dual fuel generator can operate on either gasoline or LPG/propane, giving you more options when preparing for an outage, traveling, camping, or working away from utility power.

A propane 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 to 4,000 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 stable 120V 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 convenient electric start system. A traditional recoil starting system is also included as a backup.

The generator features a convenient 3-in-1 Start Dial that combines the fuel valve, choke, and electric starting functions into a simplified control system.

Carbon Monoxide Safety Shutoff

The KS 4000iEHS CO includes an integrated carbon 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 integrated Eco Mode allows the engine to automatically reduce speed when electrical demand is low. According to Könner & Söhnen, Eco Mode can reduce fuel consumption by up to 50% 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 large 3.2-gallon (12-liter) gasoline tank and provides up to approximately 7.8 hours of gasoline runtime at 50% load under 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 approximately 62 dB at 23 feet under 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 is parallel 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 with 100% 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 approximately 88 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

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 to 4,000 starting watts and 3,500 running watts on 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 a 120V 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 approximately 7.8 hours at 50% load on 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 approximately 62 dB at 23 feet under its specified testing conditions.

How much does the KS 4000iEHS CO weigh?

The generator weighs approximately 88 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 recommends 10W-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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