I just aquired a 1800psi 2 gpm with a B&S 4.5HP. It will peal paint. I
was using a 1300 PSI electric that I thought was pretty good. For the
typical non-professional consumer (like me), the 1800/2GPM will do
most of what you want to do. If it is too powerful, hold the tip
farther fromt he surface to be cleaned. Also, there are an array of
tips that can be bought that will fit most jobs. Or, get an adjustable
one.

Hank ~~~keeping it simple