Yamaha EF1000iS Inverter Generator

Yamaha EF1000iS Inverter Generator

SKU: EF1000iS

Yamaha make the quietest and lightest camping generators in the market and are considered the Premium Inverter Generator brand. The 1000W inverter model is extremely popular among the caravanning community, 4WD enthusiasts and campers alike. The three main reasons for this unit’s huge popularity are as follows:

It weighs a mere 12.7 kilograms! This is the lightest 1000W portable generator you can buy, making it especially convenient to pack and unpack on your holiday.

Its super silent operation is unbeatable. At a normal running output, it produces a tiny 50 decibels of noise (that’s lower than normal conversation levels!) thanks to an acoustically engineered sound reduction system and newly designed mufflers. This makes it the quietest generator available.

Yamaha the brand. Yamaha make some of the best engines and power equipment in the world, and customers know they can depend on their products for quality and longevity. The unit comes with a 4 year warranty and is backed by a national service network. Built tough, this unit will not let you down.

Of course, the other attractive feature is the inverter technology, which provides pure sine wave power output which is perfect to run sensitive electronic equipment such as laptop’s, mobile phones and televisions. Not forgetting the Yamaha smart throttle feature as well; this automatically adjusts the engine speed in line with the required output to maximize fuel efficiency…speaking of fuel, despite the small, compact size of this model, it is able to run for up to 12 hours before having to top up the tank! 

The package is complete with low oil alert, an AC plug and DC charging cord, and a spark arrestor, making it the perfect generator choice for your next road trip or recreational adventure. Certainly the most popular small inverter generator for people on Camper Trailer and Camping Trips that mostly want to re-charge auxiliary battery packs and run small personal appliances.


Brushless alternator

Inverter voltage regulator: perfect for sensitive electronic appliances

Auto decompressor

Electronic circuit breaker system for safety

Oil level warning system

Pilot lamp

Noise level suppressor making it whisper quiet

Economy idle system for fuel efficiency


Recharging your battery packs on your holiday (Caravan/Motohome/Camping/4WD Adventure/Camper Trailers/Boating/Fishing)

Small Domestic Backup / Small DIY jobs

Running small electrical appliances such as smart phones, laptops etc.


Brand Yamaha

Frequency 50

Voltage 230V

Maximum Output 1000w

Altenator Type Brushless

DC Output 12V / 8 Amp

Engine OHV Air cooled - MZ50

Type 4-Stroke

Displacement 50cc

Starting Method Recoil

Rated Power 900w

Fuel Tank Capacity 2.5 L (full load)

Cont. Working Time 12 Hr (1/4 load Eco on)

Noise @ 7m 47 dBA (1/4 load) / 57 dBA (full load)

Product Dimensions (mm) LxWxH 450(L) x 240(W) x 380(H) mm

Net Weight (kg) 12.7 Kg

Outlets 1 x 15A

Manufacturers Warranty 4 year (domestic), 1 year (commercial)