Neillythere,I'm a Brit, with over 40 years experience as a Chemical Engineer in the Oil, Gas & Petrochemical industries.
The distinction that I, as a Brit Engineer, would have drawn between a drier and a dehumidifier is that I would normally expect a dehumidifier to recover the humidity as a liquid, whereas a simple drier would merely drive off the moisture and exhaust it to atmosphere.
This question is about a short name for dehumidifier, I say it is dryer, or drier, as you wish. In my view, as I've learned, a dryer is any apparatus or system that is designed to dry something no matter how or what kind of atmosphere and so on, there are many specifications and details that are not important right now. However, people normally distinguish between a home dehumidifier and a dryer used to dry hair or clothes. They don't care about technical terms, there's no need, actually.
Well, I am not a Brit, however, every Chemical Engineer know this, there are many many kinds of dryers, with different goals or objectives. You know this.
Anglika, a dehumidifier dryes clothes, paper, plates, food. It's a equipment or aparatus that is used to dry air and things, its objective is to remove the moisture from something. To dry things, obviously, the thing has to be inside the dryer, or if you prefer, dehumidifier.
A dehumidifier can works on a nitrogen/argon atmosphere as well, some materials shouldn't be dryed in an air atmosphere.
I am not trying to lecture or teach you guys/mates, I just gave my opinion, I don't know how you call a dehumidifier in your countries. However, as a Chemical Engineer I was trying to say to you the real, I mean, the technical definition of a dryer.
And, of course, these terms, as I said before, are not use in everyday conversation.
I am only trying to help.
A dryer for clothes, dishes and other household items removes all or as much moisture as is possible, and will do it by applying heat, the moisture dispersing as steam.
Since the steam is extracted through a vent, no. At least, that's what happens with the clothes-driers around here where the steam is vented into the surrounding area.
1 the hot vapour into which water is converted when heated, which condenses in the air into a mist of minute water droplets.
Specialized jargon works, in specialized circumstances.