thanks slim....i have a jumper wired on the Ranco as well...im hoping I can figure it out without having to call my electrician buddy down the road....i may have to post some pics on here for help. It seems so simple but ive already fried one earlier this year trying to do it on my own....i need to stick to what im good at and that is NOT anything that has to do with circuits!!!!! LOL......on a side note, i had to temporarily put my factory honeywell back on the heatmor.....what a joke....set at 180 (the highest u can set it) with a 5 diff i am getting actual temps of 155-168....so thats the best i can do for now until the johnson comes. Unfortunately i have radiant baseboard heat in the house, so i am really telling the difference in water temp and a bit more on wood consumption as well. The pumps to the zones have been running none stop in single digit weather. I did call heatmor and explained the situation, they are sending me another mechanical honeywell that i can turn up higher that i will have on stand by in case another failure occurs. Great service tho, they have it sent out the same day