The Yamaha EF4500iSE is an expensive but relatively quiet portable gas powered inverter generator that produces 4000 watts of clean inverted power for your recreational vehicle or travel trailer.

Yamaha EF4500iSE: Summary

The EF4500iSE provides a maximum surge power number of 4500 watts. However, its running wattage is 4000 watts. This Yamaha generator might have enough power to start and run a 15000 BTU RV air conditioner.

This 4000-watt inverter generator has an electric starter, fuel valve switch and an oil warning system. Its noise reduction system and low engine speed makes it a relatively quiet generator. Its inverter system provides stable power for sensitive appliances.

To summarize, the Yamaha EF4500iSE is a relatively quiet, but somewhat heavy, 4500-watt inverter generator. However, it has a suggested retail price that is almost as much as its running watts (check price on Amazon).

Can the EF4500iSE start an air conditioner?

It will probably start and run newer RV air conditioners that have more efficient motors that are easier to start. Whether you can start and run the air conditioner in your RV depends on the starting and running wattage requirements listed by the manufacturer. Also, use a good quality power cable that is thick enough to carry the desired current to the air conditioner while still keeping the generator a safe distance away.

You might also consider getting the bigger Yamaha EF6300iSDE if you want more power for starting an air conditioner.

Does it provide 120V or 240V?

This portable inverter generator only provides 120-volt, AC current. It cannot supply electrical power to 240V appliances. It can generate up to a maximum of 37.5 amps for surge power and 33 amps for regular rated power.

The Yamaha EF4500iSE has two 120V 20A outlets and one 30A RV twist lock outlet. However, it does not have a 12V DC outlet.

The control panel has both an hour meter and a power bar indicator. You can keep track of how many hours the generator has run and how much power it is using at any given moment.

Does the EF4500iSE have remote start?

The Yamaha EF4500iSE has an electric starter, but remote start is an optional accessory. I do not know why it is not included as a standard accessory, but get it separately if you really want this optional feature. Otherwise, just walk the extra few meters and turn on the generator with its electric starter.

Can it run on LPG or natural gas?

The Yamaha EF4500iSE has a 4-stroke gasoline engine. It only runs on unleaded gasoline. This is not a dual fuel generator, so it is not modified to use LPG or other fuel sources.

How much fuel in the tank?

Its fuel tank has a 4.5-gallon capacity. Its specifications state that it can run for about 15 hours at 1/4 load. However, a generator usually runs with heavier power loads. It might run for a few hours at the rated load.

What are its advantages?

The Yamaha EF4500iSE seems like a quiet inverter generator for its 4000-watt size. It is stated to have a noise level of about 60 dBA at its rated load. Various owners have also commented on how quiet this generator operates when you consider its size. Its low engine speed and sound blocking features really make a difference when it comes to loudness.

The EF4500iSE has a 30-amp receptacle, which is great for recreational vehicles and travel trailers. Nonetheless, check the specifications of your RV air conditioner to see if this generator has what it takes to start it up.

Any disadvantages?

The Yamaha EF4500iSE has a dry weight of 194 pounds. It might be too heavy for a single person to lift, load and unload. Still, it has four small wheels. It can be dragged over firm surfaces by one person.

It does not have a 12V DC receptacle for charging automotive batteries, which might be a drawback if you own an RV or travel trailer. Some people would also prefer to have a recoil starter as a backup starting method when its internal battery charge is too low. Others think that the remote start feature should really have been included due to the expensive price tag.

The biggest disadvantage might be its expensive retail price. It costs more than $3000, but the build quality and reliability is also high. It is probably one of the quietest 4000-watt inverter generators for recreational pursuits (view price on Amazon).