Last Updated：2022/12/24
Indirect radiators are seldom installed except for rooms on the first or second floors; and in the former case the duct, D, is very short, and in the latter it is usually from 12 to 16 feet long. It should be stated in this connection that indirects of large size should be spread out as much as possible so as to give a large area against the current of air.
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Indirect
radiators
are
seldom
installed
except
for
rooms
on
the
first
or
second
floors;
and
in
the
former
case
the
duct,
D,
is
very
short,
and
in
the
latter
it
is
usually
from
12
to
16
feet
long.
It
should
be
stated
in
this
connection
that
indirects
of
large
size
should
be
spread
out
as
much
as
possible
so
as
to
give
a
large
area
against
the
current
of
air.
