Duct mounted Flow-Thru
humidifiers have water trickling thru a water panel and
then out the bottom to a drain. Powered models use a fan
where as By-Pass models use the path of least resistance
to create the air flow.
The steam humidifier
simmers water to create humidity. They do not need warm
air and can be wired to turn on the blower when there is
a call for humidity. Not waiting for the hot air allows
for more precise RH control.
Self contained
humidifiers have a fan and do not need to be duct
mounted. The atomizing humidifiers blow a mist in to the
room or duct. The centrifugal atomizing Trion 707 series
is often used for tobacco humidors where it is shelve
mounted.
Water quality is a major
problem causing corrosion, mineral build-up, and slime
clogs. Purified water will eliminate mineral dust that
falls from the evaporating air. As well as cut health
issues with mold and mildew.