Because of a pipe running through what is supposed to be a hollow wall. I had to drop the speaker wire through the ceiling in the adjacent utility room. Where the speaker wall falls is right beside the water heater. I have the wire tacked as far away from the heater as I can but it cant me more 8 to 10 inches away. What I am wondering is if the water heater will put out enough heat to hurt or melt the speaker wire. It is not inwall wire its just the 12 ga stuff from home depot. Thanks for your help just dont want my theater to burn down my house.