thanks for the info. I have a NOrdyne model E1EB- 023HA. it a late 90's Cavalier double wide. when we moved in the old air return was disconnected for some reason. the owners had stuffed the return pipe with towels to block it. sould I reconnect it or leave it off. thanks again

can you tell me what the air temp should be when it comes out of the floor vents for the furnace. I feel like the air is warm but not hot and it takes 30 to 45 mins for the temp to increase 3 to 4 degrees. thanks