The heating and cooling system in your home is designed to maintain a constant temperature, no matter the season. In the height of summer or dead of winter, though, the cost of running your A/C or furnace can quickly increase, leaving homeowners scrambling to improve energy efficiency.
One common suggestion is to close bedroom doors, but can you save energy by closing doors?
The idea behind leaving a bedroom door closed, or shutting HVAC vents in unused rooms, to improve energy efficiency is that it limits the amount of air movement required, as well as the space that needs to be heated or cooled.
In turn, this should lower costs and save money on utility bills.
RELATED: Guide to Home Energy Audits
On the surface, this makes sense. The unoccupied room behind the closed door doesn't need to be the same temperature as the rest of the house. Instead of cooling a 2,000-square-foot home, for example, a few closed bedroom doors could drop the number of square feet that needs to be temperature-controlled to 1,700 or even 1,500.
Simple cost savings, right? Not exactly.