New home owner here. We had the first floor renovated before we moved in, and
had new sheet rock put up everywhere. I noticed after we moved in that the
return vents in each of the two bedrooms were no longer there. Turns out they
were unintentionally sheet rocked over. I wonder if this might have happened
because the return ducts in the basement are just the space between the floor
joists, closed in from the bottom (house is from 1950). There might not have
been metal casings extending to the return grills in the wall. I really don't
know. Regardless my question is, how important is it that I open them back up? I
have an American Standard Freedom 80 forced air natural gas unit. There are two
returns in the main part of the house, one of them is a double-wide return vent,
one is normal. The heating worked fine in April and May since we moved in, but I
wonder if these returns being closed would stress the furnace or cause it to be
less efficient. Last thing I want to do is ruin a relatively new (2016) furnace.
Opening the vents back up will require some sheet rock, trim work and paint to
replying to Steve, Millennial HVAC wrote:
Reducing the airflow across the furnace can be serious, and may cause the
heat-exchanger to prematurely fail. The temperature difference across your
furnace should be no more that usually more that 40 degrees F, the data tag on
the unit will usually specify the design temp differential. I suggest you
contact a licensed hvac contractor in your area to evaluate your situation. If
you happen to be in the Fort Worth area, you should visit my company's website
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