The Könner & Söhnen KS 2000iG S is a compact dual-fuel inverter generator that operates on petrol or LPG. It provides a stable 230V pure sine wave output for compatible sensitive electronics, with 1.8kW rated power and 2.0kW maximum power on petrol. Its enclosed 19kg design and integrated carrying handle make it practical for camping, mobile work and light backup use.
Free delivery to mainland Great Britain only.
At a glance
| Rated / maximum power on petrol | 1.8kW / 2.0kW |
|---|---|
| Rated / maximum power on LPG | Approximately 1.62kW / 1.8kW* |
| Output | 230V, 50Hz pure sine wave |
| Socket | 1 × UK 13A household socket — 230V |
| Starting | Recoil |
| Petrol runtime | 5.5 hours at 50% load; up to 8 hours at 25% load** |
| Petrol tank | 5 litres |
| Net weight | 19kg |
*Calculated from the manufacturer's stated 10% reduction in output on LPG. **Runtime varies with load, fuel quality, weather, altitude and generator condition.
Why choose the KS 2000iG S?
- Dual-fuel operation: choose petrol or LPG according to availability and your setup.
- Pure sine wave output: stable 230V, 50Hz power for compatible sensitive electronics.
- Compact and portable: a 19kg enclosed design with an integrated carrying handle.
- Economy mode: lowers engine speed at lighter loads to reduce fuel consumption and noise.
- Clear operating information: the LED display shows voltage, frequency and operating hours, with low-oil and overload indicators.
- Parallel-ready: compatible with a separately available KS PU1 parallel connection unit.
- Low-noise housing: rated at 62dB(A) at 7 metres.
Power, fuel and connections
Plan your load
Use the rated output and allow for appliance starting loads. For prolonged operation, the manual recommends no more than 80% of rated power: 1.44kW on petrol or approximately 1.30kW on LPG.
Check your LPG setup
An LPG hose with built-in reducer is supplied. Use only the fuel and connection method specified in the manual, check every connection before starting and never use petrol and LPG at the same time.
Parallel connection
The separately available KS PU1 can connect two compatible Könner & Söhnen inverter generators. The manufacturer states that the combined rated output is reduced by 0.2kW.
Technical specifications
| Petrol rated / maximum output | 1.8kW / 2.0kW |
|---|---|
| LPG rated / maximum output | Approximately 1.62kW / 1.8kW* |
| Voltage / frequency / phase | 230V / 50Hz / single phase |
| Maximum current | 8.7A |
| Power factor | 1 |
| AC socket | 1 × UK 13A household socket — 230V |
| Parallel connection | Yes — KS PU1 or compatible setup required |
| ATS input | No |
| Protection class | IP23M |
| Fuel | Petrol / LPG |
|---|---|
| Engine | KS 100i, 79.8cm³, single-cylinder four-stroke, air-cooled |
| Engine power | 2.5hp |
| Starting | Recoil |
| Petrol tank capacity | 5 litres |
| Petrol runtime at 50% load | 5.5 hours** |
| Petrol runtime at 25% load | Up to 8 hours** |
| Crankcase capacity | 0.35 litres |
| Alternator winding | Copper |
| Approximate generator dimensions | 500 × 285 × 460mm |
|---|---|
| Packed dimensions | 715 × 350 × 565mm |
| Net weight | 19kg |
| Noise level | 62dB(A) at 7m / 90dB(A) sound power |
*Calculated from the manufacturer's stated 10% reduction in output on LPG. **Runtime varies with load, fuel quality, weather, altitude and generator condition.
What's included
- KS 2000iG S dual-fuel inverter generator
- LPG hose with built-in reducer
- Spark plug wrench
- PH2 screwdriver
- Accessory case
- Operating instructions and declaration of conformity
Engine oil, petrol and an LPG cylinder are supplied separately.
Before first use
- The generator is supplied without engine oil or petrol. Do not start it until the correct oil has been added.
- Use four-stroke petrol engine oil; the manufacturer recommends SAE 10W-30 or 10W-40.
- Use unleaded petrol rated 90–95 octane with no more than 10% ethanol.
- For LPG operation, follow the manual's connection and leak-check instructions. Never use petrol and LPG simultaneously.
- Operate outdoors in a well-ventilated area on a firm, level surface, away from doors, windows and combustible materials.
- Read the owner's manual before starting, and connect appliances only after the engine is running steadily.
Manuals and downloads
Warranty
Manufacturer's warranty: 1 year or 1,000 operating hours, whichever comes first, from the date of purchase.
The warranty covers manufacturing defects, subject to the manufacturer's warranty conditions. Eligible faults may be repaired or the product replaced. Retain your proof of purchase and any completed warranty documentation supplied with the generator.
For help with a warranty claim, contact Energian with your order number, generator serial number and a description of the fault.
Frequently asked questions
Does it produce the same power on LPG?
No. The manufacturer specifies a 10% reduction in output on LPG. Plan the connected load around the fuel being used.
Is an LPG cylinder included?
No. An LPG hose with built-in reducer is supplied, but the cylinder is not included.
Is the KS 2000iG S suitable for sensitive electronics?
Yes. Its inverter system produces a stable 230V, 50Hz pure sine wave output. Keep the connected load within the generator's ratings.
Can two generators be connected together?
Yes. A separately available KS PU1 can connect two compatible Könner & Söhnen inverter generators. The manufacturer states that 0.2kW is deducted from their combined rated output.
Can it start automatically during a power cut?
No. The KS 2000iG S uses recoil starting and does not have an ATS input.
Energian support
For help choosing a generator contact Energian on 020 8064 0335 or info@energian.co.uk. For after-sales support, have your order number and generator serial number ready.