cold air returns needed in a basement?

[m_kalvelage]

I want to know if cold air returns are needed in a basement? Would the return need to go bak to the furnance like others?

[Hube]

If your heating your basement and using it for various activity, then Yes, basement Return Air is very important. As a general rule,up to 50 % of the Furnace's total R/A requirement should be obtained from the basement level. (assuming your basement is reasonably dry and free of odors,etc.) Hube