gas or electric pressure washer

**southerndetail** · 03-17-2009, 07:35 PM

Is it possible to have a large enough generator to push an electric pressure washer, vac, and compressor all at the same time at times.

**atkinsonair** · 03-17-2009, 07:39 PM

They make generators as big as you want,you need to find out what amps all pull at max. load.

**Troy@Protekt** · 03-17-2009, 11:10 PM

Yep it`s possible. There is a formula to calculate.

volts x amps = watts

A pressure washer needs atleast 2 times this calculation though because it is an induction motor. It draws a lot of amps at start up.

example:

my pressure washer has a 20amp x 120 volt motor.

120 x 20 = 2400 x2 = 4800watts

That`s what size you need just to run the pressure washer. Having said that my generator has a max output of 5000watts but I have used my vacuum and pressure washer at the same time without a problem so I`m guessing it depends on how good of generator it is too. Mines a top of the line Subaru (Robin).