Yamaha EF2400iSHC Review

Yamaha EF2400iSHC ReviewThe Yamaha EF2400iSHC portable inverter generator may just be the perfect RV or smaller backup generator for the average consumer. This little dynamo packs tons of super-clean power in a unit that runs efficiently, quietly and is still small enough to move around. Of course, as with most inverters, it’s not cheap – but it is considerably less than a comparable Honda model.

But what else should you know about the EF2400iSHC before seriously considering a purchase? Please continue reading as we take a closer look at this inverter to see if it really does provide the performance and quality that Yamaha is known for.

Engine Displacement & Power Output

The EF2400iSHC is equipped with a 171 cc OHV, Air-Cooled, four-stroke engine that produces a total of 2,400 surge (starting) and 2,000 rated (running) watts.

Yamaha EF2400iSHC - "guts" exposed with front panel face removed.That is enough power for supporting a few key appliances around the home during blackouts, or running a variety of RV appliances, including surprisingly large ones, like a 13,500 BTU air conditioner. It can also power other high-draw items fairly easily, like sumps, convention/microwave ovens and a variety of construction tools.

Like other Yamaha inverters, this one also produces particularly “clean” power (thanks to Pulse Width Modulation) that is especially good for sophisticated electronics – the kind in most modern computers, flatscreen TVs and other audio/visual equipment.

>>Check Price & Availability!<<

Runtime & Fuel Type

Another reason why the EF2400iSHC may be the perfect RV generator is its low appetite for fuel. This model comes with a 1.6 gallon fuel tank and is rated to run for approximately 9 hours at 1/4 of maximum load. This is a great runtime that will have you taking fewer trips to refill the unit when running it for extended periods.

Likewise, fuel efficiency is furthered by the automatic throttling system, which matches engine speed to electrical load. This allows the unit to consume only the fuel necessary to meet demand. A great feature that will reward those with particularly light energy needs.

Start Type

The EF2400iSHC uses a typical (manual) pull-start mechanism that, as users confirm below, works simply and reliably.

The Yamaha EF2400iSHC comes with (2) 120V outlets and (1) 12V DC outlet.Power Panel & Outlets

The EF2400iSHC comes with a power panel that includes two (2) 120V/20 amp outlets and one 12V DC outlet for charging.

Noise Level

One of the very best features of the Yamaha EF2400iSHC is its extremely quiet running. This model is rated to produce a mere 53 to 60 decibels of sound (depending on load). This is very good, and is comparable to the sound level of human whispering! Consequently, if recreating in peace (or in a crowded campground) is something you expect, this is a perfect option.

The Yamaha EF2400iSHC is powerful yet remarkably compact.Size & Portability

Yet another feature that arguably earns this model the title of “best RV generator” it its power to weight ratio. The EF2400iSHC delivers enough juice to turn over a 13,500 BTU air conditioner, yet weighs only 75 pounds and measures a compact 20.8 inches long, 16.5 inches wide and 18.2 inches high. As such, you won’t have to dread moving this unit around or from place to place as needed.

Product Warranty

The EF2400iSHC is backed by a 3 year limited manufacturer’s warranty.

Price and Value

Currently selling for just over $1,300 shipped, we think the EF2400iSHC is a very good deal. While it is not as inexpensive as some other models in this wattage range, it features superior construction and performance that is rivaled only by comparable Honda models. Yet, this generator is available for considerably less than a Honda inverter with a similar output.

The Yamaha EF2400iSHC user reviews and ratings.Yamaha EF2400iSHC Reviews & Ratings

Users are in love with the EF2400iSHC, which is reflected by its average satisfaction rating of 4.6 out of 5.0 stars on amazon.com. Specifically, users praise the quiet operation and great power generation this model delivers, in addition to its rock-solid build, effortless starting, unusual fuel economy and all-around reliability. In fact, many consider it to be the best inverter under $2,000, which is saying a lot!

>>Read Full User Reviews Here!<<

Additional Features

  • Noise-dampening system;
  • CARB/EPA compliant for use/sale in all 50 states;
  • Smart Throttle system that matches engine speed to load, minimizing noise and increasing fuel economy;
  • Low Oil Shutoff to prevent engine damage in the event of oil pressure loss;
  • Large fuel level gauge;
  • 12 volt DC cable included.

Overall Pros/Cons


  • Lots of clean power;
  • Lightweight design;
  • Runs quietly;
  • Highly fuel efficient;
  • CARB compliant for use nationwide;
  • Solid build;
  • Legendary reliability.


  • Somewhat pricey relative to bargain models.

Concluding Thoughts & Opinions

The Yamaha EF2400iSHC - the perfect RV/recreational inverter generator!So does the Yamaha EF2400iSHC really live up to the title as the “perfect RV generator”?

We certainly think so. This model is compact and very lightweight, yet still can turn over a huge 13,500 air conditioner – and of course power your laptop, flatscreen and other sensitive electronics with peace of mind. It’s also very easy on fuel and runs whisper-quiet, something quite rare and which is key for recreating or when using close to neighbors.

Finally, there is simply no denying the quality and solid build of this inverter. Yamaha and Honda are clearly the two most trusted names in inverters. However, the EF2400iSHC is significantly less expensive than its Honda counterpart, without sacrificing power, quality or features. Of course, this is still a pricier option than many other economy-oriented inverters on the market, but in terms of overall quality, it is probably the best-value option in its class.

Simply put, if you want a high-quality inverter in the 2,000 watt range that has the guts and reliability for recreational to commercial use, and purrs like a kitten, the EF2400iSHC is the natural choice.

>>Buy the Yamaha EF2400iSHC Portable Inverter Generator!<<

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  1. Al J says:

    I saw in one review, a comment that ethanol free gas should be used but I don’t see mention of it in the reviews here.
    Is this important? How important? etc.

  2. Dave says:

    Yes, ethanol free would be the best fuel for smaller gas engines. You would lessen the probability of gummed up carburetor due to storage for a long period of time. Better cold weather starting due to the higher octane. You will also get longer storage of ethanol free fuel before it starts to break down.

  3. Patrick says:

    I use non ethanol fuel in everything I own except my truck. (outboard, riding mower, push mower and edger)

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