This insulation is supposed to prevent the air handler from sweating and condensing moisture on its exterior during warm weather.
Insulate outside of air handler.
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.
But i do run it for about 9 months of the year to heat the house.
Unfortunately you won t find the right insulation at any home center.
Also attic ducts often leak.
However air handler sweating is different.
I rarely run the unit in the summer time to cool the house.
Then measure the outside diameter on the larger of the two tubes the skinny tube doesn t need insulation.
Fiberglass insulation inside the cabinet.
Most come with 1 2 in.
Here are the most common reasons for air handlers sweating so you can stop the condensation.
Keeping your air handler in a hot florida attic is like throwing money out the window.
So you need to install new insulation.