When the temperatures begin dropping across Rochester and Western New York, most homeowners are thinking about turning on the furnace—not necessarily about what may have collected inside their HVAC system over the summer.
Dust, pet hair, pollen, dirt, and other debris can accumulate around filters, vents, return-air grilles, blowers, and other components of your heating and cooling system. Once the furnace starts running regularly, your HVAC system begins circulating air throughout the house for hours every day.
That makes fall one of the best times to give your system some attention.
Your HVAC System Circulates More Than Warm Air
During a Rochester winter, homes tend to stay closed up. Windows remain shut, doors aren't left open for long, and the same indoor air is continually circulated through the house.
If your HVAC system is dirty, some of the dust and particles inside the system can become part of that circulation.
A fall HVAC cleaning and maintenance visit can help address common sources of buildup before your heating system begins working around the clock.
Depending on the system, a technician may inspect or clean areas such as:
Air filters
Return-air grilles
Supply registers
Blower assemblies
Furnace compartments
Evaporator coils
Drain lines
Accessible ductwork
Humidifiers and other indoor-air-quality equipment
Not every home needs its entire duct system professionally cleaned every year, but your HVAC equipment should still be inspected and maintained regularly.
Summer Leaves Plenty Behind
Even if you haven't used your furnace in months, your HVAC system hasn't necessarily been sitting untouched.
If you have central air conditioning, the same ductwork and blower may have been moving air throughout your home all summer.
Meanwhile, summer and early fall can introduce plenty of airborne material into the house, including:
Pollen and outdoor allergens that enter through doors, windows, clothing, and pets.
Pet hair and dander that can accumulate around returns and filters.
Household dust produced naturally through everyday living.
Construction or renovation dust from summer home improvement projects.
Outdoor dirt and debris tracked indoors during the warmer months.
Fall gives you an opportunity to clean things up before several months of closed-window heating season.
Don't Forget the Furnace Filter
One of the simplest ways to improve HVAC performance and indoor air quality is also one of the most commonly overlooked: changing the air filter.
A dirty filter can restrict airflow and force your system to work harder to move air through your home.
It may also allow more dust to accumulate in other parts of the HVAC system.
Filters should be checked regularly, especially in homes with:
Pets
Smokers
Recent remodeling
High dust levels
Allergy concerns
Heavy HVAC usage
How frequently a filter needs replacement depends on the filter, your HVAC system, and your household.
Cleaning Can Help Your System Run More Efficiently
Air quality isn't the only reason to clean and maintain your system before winter.
Your furnace needs unrestricted airflow to operate properly.
When filters, blowers, coils, or other components become excessively dirty, the system may need to work harder to maintain the temperature you've set at the thermostat.
A properly maintained heating system can help:
Maintain better airflow
Heat rooms more evenly
Reduce unnecessary strain on equipment
Identify problems before winter
Improve overall system performance
Reduce the chance of an inconvenient breakdown
No cleaning can guarantee that a furnace won't fail, but fall maintenance gives a technician the opportunity to catch obvious problems before the coldest part of the year.
Fall Maintenance Is Also About Safety
A heating-system visit isn't only about removing dust.
For gas-fired furnaces, a qualified HVAC technician can inspect important components associated with proper combustion and safe operation.
Depending on the equipment, an inspection may include checking the burner, flame sensor, ignition system, heat exchanger, venting, electrical connections, and safety controls.
Your home's smoke and carbon-monoxide detectors should also be tested regularly and batteries replaced when necessary.
When you're about to begin using your furnace every day, fall is an ideal time to make sure everything is operating the way it should.
What About Air Duct Cleaning?
Homeowners often ask whether they should have their air ducts cleaned every fall.
For most homes, complete professional duct cleaning is not necessarily an annual requirement.
However, having the ductwork inspected can make sense if you notice:
Visible heavy dust or debris inside ducts
Debris blowing from registers
Evidence of pests
Unexplained odors coming from the system
Significant dust following a renovation
Suspected moisture or contamination inside the duct system
A reputable HVAC professional can help determine whether the ducts actually need cleaning instead of automatically recommending the service.
Consider Your Whole-Home Air Quality
Winter indoor air quality involves more than dust.
Homes in Rochester can become extremely dry once the heating season begins. Depending on your home and HVAC system, you may also want to discuss equipment such as:
Whole-home humidifiers
Higher-efficiency filtration
Media air cleaners
Air purification systems
Ventilation equipment
The goal isn't simply to make the air smell cleaner. It's to create a comfortable indoor environment while allowing your HVAC system to move air properly.
Start Winter With a Clean System
Your furnace could run hundreds of hours over the next several months.
Taking care of your HVAC system before winter gives you a cleaner starting point for the season and provides an opportunity to correct small problems before you're relying on the furnace during a freezing Rochester night.
If it has been a while since your heating system was inspected, cleaned, or serviced, fall is the perfect time to schedule an HVAC maintenance visit.
A little preparation now can mean cleaner air, better comfort, and fewer surprises when winter arrives.