Lindhaus makes a machine for wood floors. It comes in two sizes. Karcher (parent company of
Prochem) also makes machines that can be used on hardwood floor. The Karcher models are a bit more expensive, but can switch brushes and be used on tile and concrete and possibly other surfaces.
I do have specs on these machines if you are interested. Send me an email -
scottw@bridgewatercorp.net Be sure to say you want information on wood floor machines. I get a lot of emails.