Michigan Sportsman Forum banner
1 - 4 of 4 Posts

1,729 Posts
Discussion Starter · #1 ·
I am instaling a furnace in a rental that used to have hot water heat.
the last time I did this I used rectangular duct withj 6 inch round takeoffs to the rgisters.
this instal is in the attic . the metal duct seems pricy now.
can I use all round flexible ins. duct?
1 - 4 of 4 Posts