During the recent cold snap in the NorthEast we had the drain line from our condenser pump (High Effeciency Furnace) freeze (Just the last inch or so which plugged it) and that meant lots of water inside. There are no drains on that end of the finished basement and running it the 60+ feet to the washing machine isn't really an option.
It is currently run with the air conditioning lines and sticks out 6-8 inches from the wall (the plastic stops at the wall and then it runs into a copper line that is insulated).
Someone mentioned it should actually run next to the exhaust from the furnace that is always warm when running. It would be relatively easy to do but I am always cautious when exhaust gases are involved. The exhaust is a few feet around the corner from the air conditioning unit.
The PVC exhaust vent is probably around 3 feet about ground level.