Barry, I started with a wax melter made of 3/8 plywood and a double pane glass door. This was about 3foot high and 18 inches square. The design was fine but we never have enough sun in western New york for me to melt any wax. So I converted the same box to a honey heater. I added a platform to hold a 5 Gal. pail or a varity of containers. This is about 4 inches from the bottom of the box. Under the platform I added two light sockets a fan and a thermostat to shutoff at 125 degrees and turn on at 100 degrees.(I saw somewhere that honey should never be heated over 120 degrees) It works fine with a couple of 60 watt bulbs. It takes about 12-18 hours to liquify a 5 gal. pail. I purchased the thermostat from a electrical distributor for under $10. The other parts came from a local hardware store. I don't know how effective the fan is, but it was a small muffin fan I had around the shop. Bigger bulbs would heat faster and if I insulated the box it would be more effecienent. However it works for a hobby bee keeper. Maybe these ideas will help.