It's messy and it's complicated but it really works well.
I did a lot of trial and error and found I had to heat the PermaComb enough for the wax to run off in order for the wax to not clump up in the cells. So I heat the PermaComb in a gas oven to 200 degrees (with a thermometer in the oven to make sure) and then dip it in 212 degree beeswax until all the cells are filled. Then I let it drain and then shake it out and then I hit it (upside down of course) to knock the rest of the wax off and then I stack it upside down to let it drain some more.
It will splatter and get all over you and the area. I do NOT recommend doing this in your kitchen if you are married and wish to remain so.
I have an outdoor oven and a table set up outside for doing this.