The whole machine can be disassembled by a screwdriver and a pair of pliers, which was a nice surprise in today's world of single-use plastic snaps.
-small long-nose pliers
-small needle-nose pliers
You will need to order a new heating element and some Teflon tape. I got mine from Elements and More
for about $15 (and free shipping). Be sure to tell them to write "Do Not Bend" on the mailing envelope. You could probably use NiChrome wire or ribbon for a more DIY approach.