For 120 square feet, you're going to need between 12 and 24 pints of capacity.
The easiest way to find out what size dehumidifier you need is to use this free dehumidifier sizing calculator: http://www.homedehumidifierpints.com/
If you're looking for a particular dehumidifier that fits your 120 foot room, this Frigidaire at Amazon.com will be one of the best deals on the net, 40% off and free shipping (see link below in related links).
-Footnote- A pint refers to removing 1 pint of moisture per 24 hours in a standard humidity and at a standard temperature. Pints of capacity are the standard measurement for comparing dehumidifiers.
188 will cover it. Bring extra.
It depends on how many square feet one is trying to de-humidify. The bigger the unit, the greater area they will control.
Only water should be put into a dehumidifier. If you try to add anything else to it, you might end up ruining the dehumidifier.
You will need a minimum of 16 square feet of carpet to cover that area.
To cover this area you will need about 10.87 square meters of material.
Depends on how large and damp your crawlspace is! Enter the type of room (or square footage) into a dehumidifier calculator (like the one in Related Links below) and it reveals not only how many pints of capacity you need, but which dehumidifiers fit your needs.
Half a cubic foot.
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
It depends on the size of the tiles and also, to some extent, on the shape of the area that you need to cover.
Depends on how damp those 700 square feet are! Enter the type of room (or square footage) into a dehumidifier calculator (like the one in Related Links below) and it reveals not only how many pints of capacity you need, but which dehumidifiers fit your needs.
Roughly 22 square yards.
You would need about 1 cubic yard of topsoil to cover a 200 square foot area with 1 inch of soil.