Originally Posted by Sam1969 (Post 386617)

My guess is that you are getting a static shock from the furnace. The dust and dirt inside your furnace will collect and hold a static charge. Try putting somthing between the pipe that touches your furnace door. The pipe that touches the furnace door, what is it made of ? is it pex ? polyb ? cpvc ?

Originally Posted by e46er (Post 386659)

ok buddy talked to his dad it has to do with the ion charges and when you run the water thru a rodi it changes the charge....

Originally Posted by High tide (Post 386789)

Perhaps your house is not grounded properly. Maybe the ground is only bonded to your plumbing and not grounded through a ground plate/rod buried in the ground.