Honda EU30is vs Yamaha EF2800i: A Side-By-Side Comparison of Inverter Generators

Honda EU30is

Higher power output

DC outlet availability

Parallel capability

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Yamaha EF2800i

Longer run times

Lighter weight

Compact design

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If you often find yourself in need of backup electricity, whether it be for camping trips, work-related tasks, or simply a reliable power source during blackouts, a portable generator is an excellent investment. However, there are a few things you should consider when choosing a model such as the size, noise level and of course, your budget. Today, we’ll compare two popular models – the Honda EU30is and the Yamaha EF2800i.

Performance & Power

Running Power (W): The Honda EU30is and Yamaha EF2800i both have a running power of 2800 watts. This means they can provide continuous power up to this limit; an essential factor considering your total power requirement should not exceed this number. For instance, both generators can easily power a large air conditioning unit (2000W) or an air compressor (2200W).

Starting Power (W): The starting Watts show the peak power these generators can produce briefly – importantly for devices that require a quick burst of power at startup. The Honda EU30is has a starting power of 3000 Watts, while the Yamaha EF2800i offers significantly more at 4000 Watts.

Engine type: The Honda boasts a 196cc OHV 4-Stroke engine, while its competitor runs on a slightly smaller yet similar 171cc OHV 4-Stroke engine.

Rated Output (kVA): The rated output represents the generator’s apparent power – essentially the combination of real power (measured in watts) and reactive power (which doesn’t do useful work but is necessary for some equipment to operate). Here the Honda edges ahead with an output rating of 2.8 kVA compared to Yamaha’s 2.5 kVA.

Inverter: Both models feature an inverter, meaning they can produce ‘cleaner’ power, which is beneficial when powering delicate electronics like laptops because it reduces the risk of damaging them.

Fuel & Run Time

Fuel Type: Both models are fuelled by petrol.

Fuel Tank Capacity: The Honda has a larger fuel tank capacity of 13 litres compared to Yamaha’s 11.2 litres, meaning it will have a longer run time before needing a refill.

Run Time: However, despite having a smaller tank, Yamaha’s model impressively has a much longer run time than Honda’s at 17 hours compared to just over 7 at a quarter load. This means you’ll be refuelling less often with the Yamaha.

Physical Specs

Dry Weight: At 29kg, Yamaha’s generator is significantly lighter than Honda’s, which weighs in at 59kg.This could make the Yamaha EF2800i easier to transport and maneuver.

Size: Additionally, with dimensions of 48.7 cm x 39.5 cm x 42.5 cm, the Yamaha generator also takes up less space than the Honda model that measures 65.8 cm x 55.8 cm x 44.7 cm.

Wheels: Interestingly, wheels are an optional extra on the Honda EU30is while not available for the Yamaha EF2800i, meaning if mobility is paramount, you may want consider this addition when purchasing the Honda generator.

Outlets & Parallel Use

AC Outlets: Both products come equipped with two AC outlets allowing multiple device charging or use simultaneously.

DC Outlets: It’s notable that only the Honda EU30is has DC outlets (12V/12A), useful for charging smaller devices such as smartphones and LED lights which require direct current (DC).

Parallel Use: Another handy feature exclusive to Honda is parallel capability, meaning two of the same units can be connected for twice the power. This makes it a valuable choice if you plan to use it for bigger tasks requiring more electricity.

Features & Usability

Features: The Honda unit is superior in terms of electric starting system and having indicators, whereas the Yamaha unit supplemented a recoil start with a fuel gauge. However, both have an oil alert system preventing engine damage and can operate safely with overload protection.

Noise Level

Noise Level: The generator noise level is usually assessed at 1/4 load and measured in decibels (dBA). The Honda model operates at 52-65 dBA, fairly similar to Yamaha’s EF2800i that sits around 60 dBA – for comparison, this is roughly equivalent to the volume of a normal conversation.

Honda EU30is vs Yamaha EF2800i Comparison Table

FeatureHonda EU30isYamaha EF2800i
Warranty4 Years4 Years
Engine Type196cc, OHV, 4-Stroke171 cc, OHV, 4-stroke
Air CooledYY
Running watts2800 W2800 W
Max / Starting watts3000 W4000 W
Voltage (AC)240 V230 V
DC Output12V / 12AN/A
AC Frequency (Hz)5050
Rated Output (kVA)2.82.5
Fuel Tank Capacity13 L11.2 L
Run time (Hours)7.1 at 1/4 load17 at 1/4 load
Dry Weight (Kg)5929
Size (L x W x H)658 x 558 x 447 cm48.7 x 39.5 x 42.5 cm
Number of AC Outlets22
DC Outlets12A, 12V DCNone
Parallel useYN
Starter SystemElectric & RecoilRecoil
Fuel gaugeNY
Oil alertYY
Noise Level (dBA)52-6560


In summary, both generators are high-quality options worth considering. If you need more power and features such as DC outlets or parallel capability, the Honda EU30is could be right for you. On the other hand, if you value longer run time, lighter weight, and compact design more, the Yamaha EF2800i seems to be a good match.