Has anyone got any experience and/or comment on this Thermo Jomax Alpine?
http://www.wintersteiger.com/en/Sports/Accessories-und-Spare-Parts/Workshop-Accessories/Wax-Material-and-Accessories/ (part no. 55-115-430)
Looks interesting but if the heating material is in direct contact with the ski bases it would end up a bit messy after a few cycles and wax contamination might be an issue.
I like the idea, but they recommend that you have different bags for different waxes. That could get expensive.
...or you could just hack an electric blanket