Changing a furnace filter regularly will improve your heating in the winter and your air conditioning in the summer.

Venting rules change with efficiency — and mixing them up can lead to moisture buildup, heat exchanger damage, and dangerous combustion issues.

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...

Adapt your ductwork design to ensure adequate system airflow for homeowners who intend to use their blower filter as a ...