Yamaha EF2000iS vs Yamaha EF2200iS Inverter Generators

Yamaha EF2000iS

Lighter weight

Higher current DC outlet

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Yamaha EF2200iS

More Running Power

Greater Running Time

Additional AC Outlet

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A portable generator is a great tool when you need power on the go, like for camping or working in places without electricity. It can also be helpful during power outages at home. But choosing one that’s the right size, isn’t too loud, and fits your budget can be tricky.

We’re comparing two models here: Yamaha’s EF2000iS and EF2200iS inverter generators. The key selling points for these models according to Yamaha are their portability, quiet operation and run time (for the EF2000iS), while the EF2200iS is even lighter, smaller and offers an additional 200W of power. We’ll break down these features and more to help you decide which model is best for you.

Performance & Power

Running Power (W): Yamaha EF2000iS – 2000W vs Yamaha EF2200iS – 2200W.
Running Power is essential as it determines the continuous power a generator can provide. It’s important not to exceed this number when plugging in your devices. The Yamaha EF2200iS provides slightly more running power than the EF2000iS, meaning it could handle a large air conditioning unit (2000 W) or an air compressor (2200 W).

Starting Power (W): Both generators offer 2300W max/starting power.
This is enough power for any device that needs a burst of energy at start-up. There’s no difference here between the two products.

Engine type: Both models have the same engine – 79 cc, OHV, 4-stroke.
OHV or Overhead Valve engines are typically compact, durable and offer better fuel efficiency and power output.

Rated Output (kVA): Yamaha EF2000iS – 1.6 kVA vs Yamaha EF2200iS – 1.8 kVA.
A higher kVA means the generator can handle more current, useful for equipment that draws a lot of power. The EF2200iS is a better choice in this case.

Inverter: Both generators have inverters.
This means they can produce cleaner, more stable power, which is essential for sensitive electronics like laptops.

Fuel & Run Time

Fuel Type: Both models use Petrol.

Fuel Tank Capacity: Yamaha EF2000iS – 4.4L vs Yamaha EF2200iS – 4.7L.
A bigger tank gives longer run times between refills but will make the unit heavier.

Run Time: Both generators offer a run time of 10.5 hours at a quarter load.
This suggests you’ll need to refuel less often which is particularly handy in situations where fuel supply might be limited.

Physical Specs

Dry Weight: Yamaha EF2000iS – 20kg vs Yamaha EF2200iS – 25kg.
Lighter models are easier to move around, making the EF2000iS slightly more portable.

Size: Yamaha EF2000iS measures 49 x 28 x 44.5 cm, while the Yamaha EF2200iS is slightly bigger at 55.5 x 30 x 47 cm.

Wheels: Neither generator comes with wheels.

Outlets & Parallel Use

AC Outlets: Yamaha EF2000iS has 1 AC outlet, whereas Yamaha EF2200iS has two.
More outlets mean more devices can be powered simultaneously, giving the advantage to the EF2200iS.

DC Outlets: Both units have one DC outlet with different amperage (Yamaha EF2000iS: 12V / 8A, Yamaha EF2200iS: 12V / 3A). It implies that the EF2000iS can provide higher current for charging batteries or smaller appliances.

Parallel Use: Both units are capable of running in parallel to double the power output.

Features & Usability

Both generators offer many similar features like a recoil starter system, fuel gauge, oil alert, and spark arrestor. They are both air-cooled and have a brushless alternator, improving efficiency and requiring less maintenance.

Noise Level

Noise Level: Yamaha EF2000iS – 51.5 dBA vs Yamaha EF2200iS – 57 dBA.
The noise level is important for comfort – especially if you plan to use it for activities like camping. To give you an idea of what this means, normal conversation is around 60 to 70 dBA.

Yamaha EF2000iS vs Yamaha EF2200iS Comparison Table

FeatureYamaha EF2000iSYamaha EF2200iS
Warranty4 Years4 Years
Engine Type79 cc, OHV, 4-stroke79 cc, OHV, 4-stroke
Air CooledYY
Running watts2000 W2200 W
Max / Starting watts2300 W2300 W
Voltage (AC)230 V230 V
DC Output12V / 8A12V / 3A
AC Frequency (Hz)5050
Rated Output (kVA)1.61.8
Fuel Tank Capacity4.4 L4.7 L
Run time (Hours)10.5 at 1/4 load10.5 at 1/4 load
Dry Weight (Kg)2025
Size (L x W x H)49 x 28 x 44.5 cm55.5 x 30 x 47 cm
Number of AC Outlets12
DC Outlets1x 12V1x 12V
Parallel useYY
Starter SystemRecoilRecoil
Fuel gaugeYY
Oil alertYY
Noise Level (dBA)51.557


If more power and longer run time are your priorities, then consider the Yamaha EF2200iS with more running watts and a larger fuel capacity. If you’re after a lighter option while maintaining adequate power and performance, then the Yamaha EF2000iS could be your best bet.
Remember what’s right for you will largely depend on your specific need and priority.