ncross, do a search in this forum for wax melters and you will be surprised as to what you can build for cheap money. I built one out of pine, painted it black, covered it with a piece of glass and the temperature went high enough to melt the wax in cold temps. I think I did a test in~25 deg. F outside temp. Once the sun came out the temp. inside the solar wax melter rose to ,I believe, 130 deg. F. Not sure exactly, just got to do a search. Someone used a cooler to accomplish the same.
Also, if you decide to do some straining you can accomplish both within the wax melter.