Everyone, I am new here. Sorry if this has been posted before. I would search, but I'm really not sure what to look for. Anyway, long story short: I'm replacing my electric water heater and this is what my drain (on the old heater) looks like. The 2 lines are coming from my water furnace. My guess is that some one used the drain as a water supply for the water furnace. Can someone verify this or give me some direction? If this is the case, I'd rather run pex lines to my hot/cold lines. Thanks all and glad to be here.