lazzman said:
How does a Steamer differ in cleaning method from an Extractor?
What is the process for a steamer?
A steamer shoots a stream of steam, which can heat/emulsify soiling as well as "blasting" things clean with the pressure of its output. VERY, very different from an extractor, which can spray solution (and some good extractors really do *spray* it with considerable force), but IME rely primarily upon suction to do their cleaning.
Sometimes the steamer works like a miracle, but other times I want to extract. But like
08xB, with my extractors, I often use the sprayer feature primarily as a means of rinsing, to get out all the cleaner. And yeah, Pro-Chem stuff is great and very economical.
Note that with a steamer you have to be a little careful as its output is high-temperature. I've melted synthetic carpet nap with a steamer even though I wasn't being mindless about it. I've melted plastic too, but that time I *was* being kinda careless

And of course everybody will scald himself once or twice if doing enough steaming
Noting that I have a pair of steamers (the Daimer is pretty good by any measure) and five or six extractors (ranging from little Hoover/Bissell portables to a commercial-level Century/Ninja), IMO both machines have their places and one isn't really a substitute for the other. I myself find the extractors to be *overall* more useful. But hey, that's just *me* and the stuff *I* am cleaning up.
Oh, and extractors are *SO* handy around the house! I honestly can't imagine not having one just for the "uh-oh, gotta clean that carpet!" situations that come up now and then. Got kids or pets? If so, I'd sure want an extractor. If not, you'll probably still find a use for one- the guy who cuts my hair had a protein drink spill in the trunk of his Audi...think "death car stench"....so he bought a Bissell, used some of my "protein stain remover" stuff and DIYed the problem in no time. Since then he's found all sorts of uses for it and doesn't know how he got by without it.
But then again, when I need the steamer, I need a steamer. It's not like I extract stuff in my engine compartment any more than I'd steam my oriental rugs.
EDIT: It occurs to me that this time of year, I use both an extractor and a steamer every time I clean up my wife's A8; I steam the pedals clean (quick and easy) and extract the (factory carpeted) floor mats to get the salt/etc. out of them. And that extracting *works* for that; after eleven winters and >100K miles, her original floormats are still OK.