Most homeowners rely on their HVAC system every day without realizing how much heating and cooling affect their indoor comfort until something goes wrong. From unusual noises to rising energy bills, questions about HVAC often pop up at the worst possible times. That’s why having the right information matters.
At Tegridy Air in Kenner, we’ve gathered the most common HVAC questions homeowners ask and provided straightforward answers to help you keep your system working smoothly year-round.
What Does HVAC Stand For?
HVAC stands for Heating, Ventilation, and Air Conditioning. Each part plays a role in your home’s comfort:
- Heating: Keeps your home warm during colder months.
- Ventilation: Circulates air, filters out pollutants, and maintains clean indoor air.
- Air Conditioning: Provides cool air and removes humidity from your home.
Together, these systems improve indoor air quality and help maintain consistent airflow.
How Often Should I Service My HVAC System?
Your HVAC system should be serviced at least twice a year, ideally in the spring and fall. Regular maintenance helps:
- Prevent breakdowns before they become major problems
- Lower your energy bill through better energy efficiency
- Extend the lifespan of your HVAC system
Skipping tune-ups often means small issues like a dirty air filter or clogged coil can become costly repairs later.
How Long Do HVAC Systems Last?
The lifespan of an HVAC system is typically 10 to 15 years. However, factors such as square footage, humidity levels, and how often you schedule regular inspections matter. A well-maintained system can last closer to 15 years, while neglected units may fail earlier.
When Should I Replace My HVAC Filter?
Air filters are your first defense against dirty air and indoor pollutants. For most households:
- Replace every 1–3 months
- Inspect monthly if you have pets, allergies, or live in humid climates
- A dirty air filter reduces HVAC efficiency and drives up costs
Changing air filters regularly helps maintain your HVAC system and improve indoor air quality.
Why Is My Energy Bill So High?
An unusually high energy bill is often tied to HVAC problems. Common causes include:
- A clogged or dirty air filter
- Leaky ductwork or damaged air ducts
- Low refrigerant levels
- Oversized or aging air conditioning units
Addressing these issues helps keep your system running efficiently and prevents further damage.
How Do I Know If My HVAC System Needs Repair or Replacement?
You may need an HVAC technician if you notice:
- Frequent breakdowns or costly repairs
- Uneven heating and cooling in different rooms
- Unusual noises or warm air blowing from the air conditioner
- The system is more than 12 years old
If repair costs approach half the price of a new installation, replacement is the smarter choice.
What Size HVAC System Do I Need for My Home?
Choosing the correct size HVAC system is key for optimal performance. A professional load calculation considers:
- Your home’s square footage
- Windows, insulation, and ductwork
- Local climate conditions
An oversized unit wastes energy, while an undersized one struggles to keep your home cool or warm. Always consult an HVAC specialist to find the right size for your home.
Why Is My AC Blowing Warm Air?
A cooling system should provide cool comfort, not warm air. Common problems include:
- Low refrigerant levels
- A dirty air filter or clogged coil
- Faulty thermostat
- Weak airflow from damaged ducts
If cleaning or adjusting the thermostat doesn’t help, it’s best to call an HVAC professional.
How Can I Improve Indoor Air Quality?
Poor indoor air quality can lead to health concerns. To improve indoor comfort:
- Change air filters regularly
- Inspect ducts for leaks and dirt buildup
- Use dehumidifiers or purifiers to remove pollutants
- Add ventilation to bring in fresh air
These steps help maintain your HVAC system’s efficiency while reducing pet dander, dust, and other pollutants.
What’s the Difference Between a Heat Pump and an Air Conditioner?
A heat pump cools your home like an air conditioner but also provides heating. Air conditioning systemsonly cool the air. In Louisiana, a heat pump is often the better HVAC system because mild winters mean you can rely on a single system for heating and cooling.
How Can I Lower My Energy Costs With My HVAC?
Improving HVAC efficiency helps keep your system running smoothly:
- Set your thermostat wisely (78°F in summer, 68°F in winter)
- Use a smart thermostat for energy efficiency
- Seal leaks around windows and doors
- Schedule regular tune-ups with an HVAC technician
Simple changes can reduce your monthly energy bill significantly.
Why Is My HVAC Making Strange Noises?
Every sound signals a possible issue:
- Banging or clanking: Loose or broken parts
- Squealing: Worn-out belts
- Hissing: Refrigerant leak
- Rattling: Debris in ductwork
These common problems can quickly escalate if ignored. Always inspect unusual noises early to prevent further damage.
How Often Should I Replace My Entire HVAC System?
Even with HVAC maintenance, systems wear out after about 10–15 years. If your heating and cooling equipment struggles, breaks down often, or has low HVAC efficiency, replacement is likely the best solution.
Should I Get a Maintenance Plan?
Yes. Maintenance plans help you maintain your HVAC system, keeping it efficient and reliable. Benefits include:
- Priority service during peak seasons
- Discounts on repair and cleaning
- Regular inspections to prevent further damage and ensure optimal performance
- Longer lifespan for your HVAC system
At Tegridy Air, we offer affordable HVAC maintenance plans in Kenner.
What Should I Do in an HVAC Emergency?
Before calling an HVAC professional, inspect these quick fixes:
- Check thermostat batteries and settings
- Inspect your circuit breakers
- Replace a dirty air filter
If the system still won’t work, schedule HVAC service immediately. Emergency repairs help prevent further damage and ensure your comfort.
Quick Reference: HVAC Maintenance at a Glance
| Task | Frequency | Notes for Homeowners in Louisiana |
| Replace air filter | Every 1–3 months | Monthly if pets or allergies exist |
| Professional inspection | At least once a year | Best before cooling and heating seasons |
| Duct cleaning | Every 3–5 years | More often with humidity issues |
| System replacement | 10–15 years | Depends on maintenance and usage |
Conclusion
Understanding your HVAC system helps you prevent issues before they become major. From clogged filters to refrigerant leaks, one of the most common homeowner mistakes is skipping maintenance. With regular cleaning, repair, and professional installation, you can keep your HVAC system running efficiently, improve indoor comfort, and extend its lifespan.
At Tegridy Air in Kenner, we provide the most common HVAC Questions Answered and help homeowners with everything from regular tune-ups to emergency repairs. Whether you’re dealing with dirty air filters, duct issues, or full system installation, our HVAC specialists are ready to keep your home’s heating and cooling systems working at their best. Get a free consultation today and keep your HVAC system reliable all year.
