Remove the silver cup from the top of the vaporizer. Fill it 1/2 to 3/4 full of any brand of dry sulfur pellets. Replace the cup.
Adjust the level of the cup over the burner by loosing the wing nut on the front of the burner. Slide the cup closer to the burner if you want fast evaporation, or further away for slow evaporation. Tighten the wing nut to secure the cup in place.
Plug the adapter end of the power cord into the plug in the bottom of the vaporizer. Plug the other end of the cord into any standard electrical outlet.
Find a mounting location from which to hang the device, such as a nail, bar or any other high point in the greenhouse. Hang the vaporizer from its silver handle.
Allow the machine to run for between four and six hours.