Steamers are great tools, especially for spotless jewelry cleaning.
My experience with steamers over the years has been the traditional
boiler types, with the glass sight tubes, eventual leaking, boiler
failures, etc. There is a wonderfully convoluted procedure for
filling the boiler which is fairly complicated, involving releasing
air from the boiler as water is added to the boiler, opening and
closing valves, etc. Not good to overfill or underfill the boiler,
and there is time needed to get the apparatus "up to steam"
I wanted one for my new studio, and a few years ago, through a local
supplier, I came across a used Steam Dragon steamer.
It was almost new, and priced at only $400, really cheap for a
steamer. I was unsure whether I would like its “boilerless” design,
but have found it to be a great steamer, with few of the problems of
a traditional “boiler” type steamer. These Steam Dragon units don’t
have a pressurized boiler, but a super heated chamber that water is
injected into, as needed, to create a blast of steam. A plastic tube
is inserted into a jug of distilled water, and when the foot pedal
is depressed, water is pumped into the heated chamber. Out comes a
strong blast of steam from the nozzle, which I have directed into my
shop sink. It’s a really simple machine, produces a powerful blast,
and seems less problematic than boiler type steamers.