3 Common Heating and Cooling Mistakes to Avoid
Turning the calendar is a great reminder to reset more than just personal goals. Heating and cooling systems also benefit when old habits are retired, and better routines take their place. This guide explains three common HVAC habits that undermine comfort and energy efficiency, and how simple changes in filter care, vent use, and professional maintenance can keep equipment running smoothly.
Not Replacing Air Filters
An air filter may look minor, but it has a big impact on system performance. As dust, pet dander, and other particles collect in the media, airflow through the furnace or air handler drops. When air filter replacement is neglected, the blower works harder, rooms heat and cool less evenly, and indoor air quality declines.
Most homes with standard one-inch filters benefit from replacing them at least every three months, and more often in households with pets or allergy concerns. Clean filters allow air to circulate freely across the heat exchanger or evaporator coil, which supports better temperature control and more consistent comfort in every room.
Improved airflow also boosts energy efficiency. A clean air filter helps equipment reach set temperatures with less run time, which can reduce heating and cooling costs over the course of a year. Less strain on motors and components means fewer breakdowns and a longer service life for both the heater and the air conditioner. A small, inexpensive part delivers a surprisingly large return when changed on schedule.
Blocking or Closing Air Vents
Another habit to leave behind is closing supply registers or placing furniture over air vents. While this might seem like a way to redirect air or “shut off” unused rooms, it actually disrupts the system’s designed airflow.
When air vents are blocked, static pressure in the ductwork rises. The blower must push against that added resistance, which can cause noise, increase wear on motors, and, in some cases, lead to equipment cycling on safety limits. Temperature distribution suffers as well: some rooms become too warm or too cold, while others never feel quite right. That imbalance often encourages thermostat changes that further increase energy use.
Keeping vents open and unobstructed allows air to return to the system as intended and helps avoid these problems. If certain areas consistently feel uncomfortable, a better solution is to discuss zoning options, duct adjustments, or balancing with a professional rather than forcing an imbalance by closing registers. That approach minimizes inefficiency and strain throughout the system.
Skipping Maintenance
Regular heating maintenance and air conditioning maintenance are easy to postpone when the equipment seems to be working. However, skipping tune-ups often leads to hidden inefficiency, surprise repairs, and shorter system life.
During routine heating maintenance and AC maintenance, technicians clean components, check airflow, test safety controls, and verify refrigerant or fuel delivery. These steps help systems operate closer to their design efficiency, which can lower utility bills and support steadier temperatures year-round.
Proactive service also catches worn parts and minor issues before they develop into major failures. Replacing a failing capacitor or cleaning a dirty coil at a scheduled visit is far less disruptive and less expensive than an emergency breakdown in the middle of a heat wave or cold snap. In addition, a well-maintained system is more likely to run safely, with reduced risk of electrical problems or combustion-related concerns, and it generally supports better indoor air quality for everyone in the space.
About Keep Smiling Plumbing Electric Heating and Cooling
Keep Smiling Plumbing Electric Heating and Cooling is a top-rated plumbing, heating, cooling, and electrical company providing expert service from highly trained technicians. They’re committed to customer satisfaction and provide transparent, upfront pricing. Call them today for heating services in Loganville, GA.
