Hello All, Do to the number of direct email i will post a simple converting method. Those beekeepers with electrical knowledge can go to the hardware store and come up with basically the same thing as Kelleys heat limit control BUT the bulb part is hard to beat. parts: one old refrigerator with good seal on door one heat limit control -cat. no. 250 page 50 of the 2000 Walter Kelley catalog- toll free 1-800-233-2899 one metal light fixture box one ceramic single bulb light fixture about 7 foot appliance wire and a 110 wall plug(or from old frige) about eight sheet metal screws to hold limit control and light fixture box DON'T pay for a defective refrigerator! Appliance stores have to pay extra at the dump to dispose of those. Our local appliance store had about ten to choose from last i looked. All have got freon removed and usually motors or compressors missing. 1.cut the old refrigerator cord off. This can be reused (if in good condition) 2.Remove any plastic tray ect. in refrigerator lower part. These can be put in later if positive the heat from bulb will not melt them 3. drill a half inch hole for wire for light fixture in location you want light. Usually bottom on the side. 3. mount metal light fixture box at bottom part of refigerator over the drilled hole with Four sheet metal screws. 4 mount the limit control outside. I mount these up high but does take longer wire. 4 sheet metal screws to mount box. Now you should have a metal fixture mounted in frige bottom with hole and a heat control mounted on the same side outside. The Kelley heat control is very heavy duty. Designed to run a 1500 watt space heater. You are only going to run a light bulb. If you are electrical minded you can take the immersion heater off a Kelley immersion heater and use it instead of a Kelley heat limit control. 5.Take your old refrigerator cord(or new cord and plug) and slide through the drilled hole (3/8 to 1/2 inch) of the lower light metal box. leaving the plug on the outside. This cord will plug into the *female* plug from heat limit control. Hook the two wires to the back of the ceramic light fixture and the green wire to the green ground terminal. Mount the ceramic fixture to the metal box with the two screws provided with fixture. Screw in light bulb and lower part done! 6.Drill a 1/2 inch hole for the bulb to slide in to run the temperature control. I put these about mid way of the refrigerator. 7. tape around holes to conserve heat. Plug in heat limit control and set desired temperature. Light should come on and off with higher and lower settings. It takes me about 15 minutes to convert one of these refrigerators over. Allow about a hour and go carefully. In your garage they fit in nicely. Try to find a attractive refirgerator as there are plenty free for the asking. You might need to add a drop cord to reach your garage wall plug in but the drop cord need be only heavy enough to run a single light bulb. I have got two of these converted refrigerators myself and love them. A valuable piece of beekeeping equipment. Stick those crystalized jars of honey or crystalized 5 gallon pails in (or supers to be heated on a very small scale) and simply set the control like you would the furnace on your house. 120 degrees is a good temp for 5 gal. pails. 80 degrees works well for those jars of honey which crystalize fast in a unheated garage this time of year. Walter Kelley lists the heat limit control at $38 plus shipping (i bought my last about 10 years ago and still works great) so the price has went up but they are a quality piece of equipment. i have tried to show a very simply way to convert a refrigerator over for the beekeeper not electrically inclined. These refrigerators are safe. Will not cook your honey and maintain accurate temperatures. Gary Reynolds the owner of Rainbow Honey farm in Concordia,Kansas uses about ten of these converted refrigerators to store all his store route honey. Then he doesn't have to heat his honey house when not in use. Much cheaper to run 600 watts of light bulbs than a large furnace. Remember honey crystalizes best at 57 degress. Average temperature of most unheated garages and basements! Sincerely, Bob Harrison