Perform maintenance checks regularly
The heating systems you rely on are incredibly trustworthy, but like with other equipment, get the heating system examined on a regular basis for optimal operation. Routine inspections will allow you to detect growing problems before they become full-fledged emergencies, and regular cleaning of essential components will keep systems working smoothly and indoor air quality high.
Ductwork must be checked and cleaned, combustion chambers must be cleaned of dust, the blower must be cleared, the blower belt must be checked, connections and wires must be checked, and so on. This may be covered by some of your maintenance policies. Otherwise, it is worthwhile to engage a professional to perform the one-time task on an annual basis.