Performed comprehensive maintenance on two furnaces: newer Lennox unit (4-5 years old) and older Evcon model (20 years old). On the Lennox, reattached disconnected water exhaust pipe using PVC cement for permanent connection. For the Evcon furnace, replaced cracked drain hose and broken barbed fitting with new 3/8" vinyl tubing, secured with silicone sealant. Both units were tested and confirmed to be operating within specifications.
