What is the reasonable span of static pressure within a furnace system? I have an 80,000 BTU large efficiency furnace, and I've be trying...
I have an 80,000 BTU large efficiency furnace, and I've be trying to determine whether the cold air returns are voluminous enough. Currently, the static pressure ranges between .8" and .9". Is this within the range where on earth it should be, or is this too high? Thanks!
Answers: Normally a duct system is designed for .5". The greater it is the more energy is frivolous.
that is big, but will not kill the system depending helpfulness