Wait until the hot wax cools down to room temp then go ahead and scrape it off.
Yes, wax will lower the drag coefficient of the snowboard.
Yes, definitely! Specially, if the it is exposed in the heat for long hours.
No it destroys the board.
No, not a good idea
Possibly, depending on how good the quality of your wax is.
use the pad it comes with
Gasoline, or Paint Thinner
It helps you to go faster.
You want to scrape of almost all the wax leaving a thin coat.
Candle wax isn't the same as board wax. Candle wax can make your board stick to the snow, so just spend the extra couple bucks and buy snowboarding wax.
Some common snowboard accessories are goggles, snowboard wax, protective clothing such as suits and gloves, hats, instructional DVDs and helmets, they can be found in many stores.
take off the wax and rewax it