We are in the process of purchasing a 2 story (2500 sq ft) home built in 1972.
The entire a/c unit (furnace and condenser) was installed in 2006. After we hired a home inspector - he mentioned that the a/c is missing a secondary drain pan and there is no backup condenser pipe.
Since the furnace is located up stairs - can we install a backup condenser pipe so that the condensation comes outside through the pipe either on the side of the house or above the front door? or just get a backup drain pan and check it often?
How much do these items cost? What's most effective?