Hi, I'm looking to make some heated gloves. Basically I plan on running current through a wire of some resistant material that I've attached to the inside of a glove/mitten. So what I need advice first on is if I there is a special material I should use for the wire, or can I just use regular copper wire of the right diameter? (I think I read somewhere that some commercially available gloves just use copper wire.) The gloves don't have to be portable at all. The other question I have is if there are any relatively simple equations I could use to ballpark this design ahead of time. If I use Ohm's law R=V/I and if R = resistivity of wire material x (Length/cross section area) then what can I use to equate R with the temperature of the wire? Also, would either AC or DC power offer any advantages over the other?