What Martin County and Palm Beach County Homeowners Need to Know
For many homeowners in South Florida, the idea of running the heat can feel almost unnecessary. After all, we are known for palm trees, sunshine, and warm temperatures year round. But when winter cold fronts move through Martin County and Palm Beach County, temperatures can dip quickly especially at night and early in the morning.
When that happens, many homeowners turn on their heating system for the first time in months or even the first time all year.
At AirCo, we see this every winter. A sudden temperature drop arrives, the heat gets switched on, and homeowners are surprised when something does not feel right. Strange smells, weak airflow, uneven heating, or systems that do not turn on at all are far more common than most people realize.
This guide explains what South Florida homeowners should know about running heat, why heating systems behave differently here, and how to make sure your home stays comfortable, safe, and energy efficient throughout the cooler months.
Why Heating Works Differently in South Florida
Unlike northern states where heating systems run daily for several months, South Florida homes operate very differently.
In Martin County and Palm Beach County, heating systems may only run a handful of times each year. That limited usage creates a unique set of challenges.
Long periods of inactivity
Your heating components can sit unused for eight to ten months at a time. During that time, dust builds up, electrical connections age, and small issues can go unnoticed.
Heat pumps dominate South Florida
Most homes in our area use heat pumps rather than gas furnaces. Heat pumps work by reversing the air conditioning process rather than creating heat through combustion.
This makes them extremely efficient in mild climates but also means they behave differently when temperatures drop suddenly.
Humidity still matters
Even during cooler weather, humidity remains a factor in coastal South Florida. That humidity can affect airflow, coils, and overall comfort levels when heat is running.
Common Reasons Heat Does Not Work When You Turn It On
One of the most common calls AirCo receives during the first cold front of the season is simple
“My heat is not working.”
Here are the most frequent causes.
Dirty air filters
Clogged filters restrict airflow and can prevent heat pumps from operating properly. If your filter has not been changed since last summer, this is often the first issue.
Thermostat settings
Many thermostats are accidentally left in cooling mode or are not set correctly for heat pump operation. Some homeowners also confuse emergency heat with standard heating.
Electrical component wear
Since heating components are rarely used, relays, sequencers, and wiring can fail without warning once activated.
Outdoor unit issues
Heat pumps rely heavily on the outdoor unit. Leaves, debris, and salt air corrosion can all interfere with proper heating performance.
What That Burning Smell Means When You Turn On the Heat
This is one of the most common concerns homeowners have.
When you first run your heat each season, a slight burning or dusty smell is usually normal. This comes from dust that has settled on the heating elements or internal components burning off.
However, the key is duration.
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A mild smell that disappears within 10 to 20 minutes is typically normal
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A strong odor that lingers or smells electrical should be addressed immediately
If the smell continues, turn the system off and contact AirCo to inspect the unit safely.
Heat Pump vs Emergency Heat
Understanding the Difference
Many South Florida thermostats include an “Emergency Heat” setting, and it often causes confusion.
Standard heat pump mode
This is what your system should use most of the time. It is efficient and designed for mild winter temperatures like those in Palm Beach County and Martin County.
Emergency heat mode
This uses electric resistance heating and consumes significantly more energy. It should only be used if your outdoor unit is not functioning.
Running emergency heat unnecessarily can cause extremely high electric bills.
If you are unsure which mode your system is using, AirCo can help you verify proper operation.
How Running Heat Impacts Your Energy Bill
Because South Florida homes are designed primarily for cooling, heating can actually surprise homeowners with higher utility costs.
Here is why.
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Electric heat strips consume large amounts of electricity
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Heat pumps lose efficiency during colder mornings
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Homes built for airflow and ventilation may lose warmth faster
To control costs, consider these tips.
Set reasonable temperatures
Raising the thermostat too high forces the system to work harder. Small adjustments make a big difference.
Avoid constant on and off adjustments
Frequent changes cause unnecessary strain and energy use.
Make sure your system is properly maintained
A tuned system runs more efficiently and heats more evenly.
Why Winter Is a Smart Time for HVAC Maintenance
Many homeowners think of HVAC service as a summer priority only. But winter is actually one of the best times for maintenance in South Florida.
Lower demand means faster service
Most HVAC emergencies happen during extreme heat. Winter maintenance often allows for more flexible scheduling.
Catch problems early
Small electrical or airflow issues discovered in winter can prevent major breakdowns during summer.
Improve system lifespan
Routine inspections extend the life of your equipment and protect your investment.
AirCo recommends seasonal maintenance to ensure your system is ready for both heating and cooling cycles.
Comfort Tips for South Florida Homes During Cold Fronts
Because cold snaps here are brief, comfort often comes down to smart habits rather than long term heating.
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Use ceiling fans on low reverse mode to circulate warm air
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Close blinds at night to reduce heat loss
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Seal obvious drafts around doors and windows
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Wear layers rather than overheating the home
These small adjustments can greatly improve comfort without increasing energy usage.
Signs You Should Call AirCo Right Away
If you notice any of the following, it is best to schedule professional service.
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Heat will not turn on at all
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Air blows but never warms
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System repeatedly turns on and off
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Breakers trip when heat runs
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Strong burning or electrical smells persist
Addressing issues early helps avoid system damage and unexpected repair costs.
Local Experience Matters in South Florida HVAC
Heating systems in Martin County and Palm Beach County face very different conditions than systems in colder regions.
Salt air, humidity, coastal exposure, and year round operation all require specialized knowledge.
At AirCo, we understand how South Florida homes operate because this is where we live and work. Our technicians are trained specifically for heat pump systems common throughout our area, and we focus on solutions designed for local conditions not generic fixes.
Trust AirCo to Keep Your Home Comfortable Year Round
Whether temperatures dip into the 40s for a few nights or you simply want peace of mind before the next cold front, AirCo is here to help.
From system inspections and thermostat checks to full heating diagnostics, our team ensures your home stays safe, comfortable, and efficient through every season.
If you live in Martin County or Palm Beach County, and have questions about running your heat, scheduling maintenance, or improving system performance, AirCo is just a call away.
Comfort does not stop just because winter is short.
