tl I think there is a green ground screw (upper right side) as you are looking at the side pannel with it off ,but i will try to post pic on tue have to work sun,mon
yeah blairtruck I will take some on tue and put them on. the vent kit was easy but the heater was alittle hard never did that sortof thing beforeI did use 1/2 or 1inch black pipe thoughfor the supply