As cooler mornings arrive in the Portland area, it’s time to start thinking about the system that keeps your home warm. Whether you use a gas furnace, an electric furnace, a heat pump, or a ductless system, a little attention now can help you head into the heating season with fewer surprises.
At Three Rivers Heating and Cooling, we want our neighbors to feel comfortable and confident about their home’s heating. Here’s what to keep in mind as we move from open-window weather to heat-on weather.
Schedule Your Fall Heating Maintenance
Your heating system may have been sitting idle while your air conditioner handled summer comfort. Fall is a good time to have it checked before you depend on it every day.
Professional maintenance for your equipment is always a good idea. Depending on your system, that may include inspecting electrical connections, checking blower operation, testing safety controls, inspecting gas heating components, and checking condensate drainage.
For fuel-burning equipment, an annual professional inspection is an important part of heating safety.
Maintenance can uncover problems that need attention, but it doesn’t guarantee that every breakdown can be prevented. Ask your technician what was checked, what they found, and whether anything needs follow-up.
Check Your Filter—and Keep Checking It
A dirty filter can restrict airflow and make it harder for your system to circulate air through your home. Start heating season by checking its condition, then inspect it monthly and replace or clean it according to the equipment and filter manufacturer’s instructions.
There isn’t one replacement schedule that fits every home. Filter thickness, system use, pets, dust, and recent remodeling can all affect how quickly it gets dirty.
Use the correct size and a filtration level your equipment supports. A higher-rated filter isn’t automatically the best choice if your system can’t move enough air through it. In fact, a filter with a higher MERV rating can actually have a negative impact on your system. We recommend sticking with filters that have a MERV rating of 13 or lower.
If you’re unsure, ask your HVAC technician.
Test the Heat Before You Need It
Give your heating system a trial run on a cool day. Set the thermostat to heat and raise the temperature enough to call for heating. Check whether the system starts and whether air reaches the rooms you expect.
Pay attention to repeated starting and stopping, unusual noises, weak airflow, or a system that struggles to reach the temperature you set. These are reasons to arrange service before colder weather arrives.
Review Your Thermostat Settings
Check the thermostat’s schedule, batteries if applicable, and heating settings. A schedule that made sense in summer may need an adjustment for fall routines.
For furnace-heated homes, lowering the temperature while you’re away or asleep can reduce heating energy use. Heat pumps need a different approach: large temperature changes can bring on electric backup heat in some systems. Ask about settings suited to your equipment and whether your thermostat supports efficient heat pump recovery.
Turning the thermostat much higher than your desired temperature generally won’t make your home heat faster.
Give Airflow a Clear Path
Check that furniture, rugs, curtains, and stored items aren’t blocking supply registers or return grilles. Keep the area around your furnace clear and follow the manufacturer’s clearance requirements.
If one room stays chilly while another gets too warm, mention it during your maintenance visit. Restricted airflow, duct leaks, insulation gaps, or system setup may be contributing. Closing a lot of registers is not a reliable fix and can interfere with airflow.
Make Heating Safety Part of Your Fall Routine
Test your smoke and carbon monoxide alarms, follow their placement instructions, and check their replacement dates. Carbon monoxide is odorless and colorless, so you cannot rely on smell to detect it.
If a carbon monoxide alarm sounds, get everyone outside immediately, call 911, and stay out until emergency responders say it is safe to return.
If you smell gas, leave the building and call your gas utility’s emergency line or 911 from a safe location. Avoid flames, electrical switches, or trying to restart the furnace.
From ground level, check that accessible outdoor furnace intake and exhaust openings are free of leaves and debris. Leave vent repairs and internal furnace work to a qualified professional.
Don’t Forget Heat Pumps and Ductless Systems
Heat pumps work through the heating season, so the outdoor unit needs attention too. Remove loose leaves and debris around it and maintain the clearances specified by the manufacturer. Do not cover a heat pump while it’s operating.
Light frost and occasional defrost cycles can be normal in cold weather. Heavy ice buildup that doesn’t clear, poor heating, or repeated operating problems deserve a service call. Don’t chip ice off the coil.
For ductless systems, clean the accessible filters as directed in the owner’s manual and arrange professional service for deeper cleaning and system checks.
Think About Indoor Air and Moisture
As windows stay closed longer, pay attention to stale air, lingering odors, dust, and condensation. Keep bathroom and kitchen exhaust fans working and use them to help manage moisture.
Portland-area homes can have moisture concerns as well as comfort concerns. Don’t assume every home needs a humidifier. Persistent window condensation, musty smells, or damp areas should prompt a closer look at moisture sources and ventilation.
If you’re considering upgraded filtration or an air-cleaning product, ask what problem it addresses and whether it fits your system.
Look Beyond the Furnace
Drafty doors, leaky windows, poorly insulated spaces, and leaking ducts can make a working heating system seem inadequate. Weatherstripping and appropriate air sealing can improve comfort, while ductwork in attics or crawlspaces may need professional attention.
Compare energy use with similar weather and household routines when reviewing your bills. A higher bill alone doesn’t prove the furnace is failing.
Address Repairs—and Plan Ahead
Repeated repairs, uneven heating, and trouble keeping your home comfortable are worth discussing with a technician. If replacement may be approaching, compare repair costs, equipment condition, sizing, installation requirements, and your long-term comfort goals.
Age is one factor, but it shouldn’t be the only reason to replace a system. A clear assessment can help you make a decision without waiting for an unexpected loss of heat.
Get Comfortable Before the Cold Settles In
Getting ready for furnace season starts with a few simple steps: check the filter, test the heat, clear airflow paths, review thermostat settings, and schedule professional maintenance.
Three Rivers Heating and Cooling is a family-owned business serving our Portland-area neighbors. If your heating system needs attention—or you have questions about getting ready for the season—we’re here to help.