He makes a number of assumptions that may or may not be true. In northern
climates, the basement is normally heated and requires an air return for
this purpose. If the basement is made into a liveable area, you will need
returns to ensure that the heat is distributed.

Many of his assumptions could cause some people who do not know much about
the operation of their house and climate to be afraid of the basement air,
with the variables in construction styles, age of building and many, many
other conditions, the advise really only applies to a limited number of
homes and the rest he doesn't cover -- as it would require a whole book.


"Charles" wrote in message
. ..

I agree and the amount of cooling is miniscule in any case.