Bending electrical conduit can be a difficult job if you don't have a professional conduit bender. The problem is that it tends to just collapse. Heating it will certainly help, but it still flattens out or kinks.
Alfonz from Vernon B.C. has a real nifty technique. He fills the conduit with sand and plugs both ends to keep it in there. Then he heats the conduit. The sand prevents it from collapsing. The sand does slow down the heating of the pipe, but it ends up bending nicely, without you having to buy professional tools that you would probably rarely use.