Is my furnace air return efficient?
May 22, 2011 11:36 AM Subscribe
In the name of frugality, is this air return on my furnace efficient, or should I cut out the wood and replace with something allowing more air flow? ~650 sq. ft. 2 floor apartment (built ca. 1920s).
posted by lowdirt to Home & Garden (5 answers total)
It's heating up in Texas and I'm wondering if the makeshift vent for my furnace/ac air return is allowing enough air flow. With regard to furnace size, the label on the side says:
I have no idea what this means. Here's
what it looks like, holes about 1 inch dia.