What is a common effect of improper duct sealing in gas heating systems?

Improper duct sealing in gas heating systems leads to decreased heating efficiency due to the loss of heated air within the ductwork. When ducts are not properly sealed, conditioned air can escape through leaks and gaps before it reaches the intended living spaces. This not only means that the furnace has to work harder to maintain the desired temperature, but it can also lead to uneven heating throughout the home. As a result, the system consumes more energy, which translates to higher utility bills and potential strain on the furnace, ultimately reducing its efficiency and lifespan.

On the contrary, options that mention increased furnace lifespan, better air quality, or consistent air distribution are not accurate reflections of the consequences of poor duct sealing. Instead, proper duct sealing is essential for ensuring energy efficiency, even distribution of air, and maintaining overall system performance.