Also attic ducts often leak.
Insulate outside of air handler.
Fiberglass insulation inside the cabinet.
So you need to install new insulation.
Most come with 1 2 in.
Start by peeling off all the old air conditioner foam insulation.
Keeping your air handler in a hot florida attic is like throwing money out the window.
But i do run it for about 9 months of the year to heat the house.
However air handler sweating is different.
Here are the most common reasons for air handlers sweating so you can stop the condensation.
Unfortunately you won t find the right insulation at any home center.
I rarely run the unit in the summer time to cool the house.
Moreover the excess moisture can lead to a damaged plenum mold or termites.
The air handler and supply ducts are all in the attic and so are outside of the insulating envelope of the house.
The insulation inside the air handler should also be enough to prevent major heat loss in winter months.
Then measure the outside diameter on the larger of the two tubes the skinny tube doesn t need insulation.