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Frequently Asked Questions
Got questions about heating, cooling, or indoor air quality? We’ve got answers. At Heartland Heating and Air LLC, we believe an informed homeowner is a confident one — so we’ve put together this list of frequently asked HVAC questions to help you stay comfortable, save money, and get the most from your system.
What HVAC services do you offer?
We provide full-service heating and cooling solutions for residential and light commercial customers in Evensville and surrounding areas.
- AC Repair, Installation & Maintenance
- Heating Repair, Installation & Maintenance
- HVAC System Replacements
- Maintenance Plans & Diagnostics
Why am I seeing mildew around my vents?
Mildew near vents is usually caused by excess humidity, poor airflow, or insufficient insulation around ductwork. It could also be a sign your system isn’t dehumidifying properly. We can inspect your system, check for duct leaks, and recommend solutions like improved ventilation or a whole-home dehumidifier.
How long does an HVAC system last?
Most systems last:
- Furnaces: 15–20 years
- Air Conditioners & Heat Pumps: 10–15 years
Regular maintenance can extend the life of your system significantly. If your system is near the end of its lifespan and having frequent issues, it might be time to explore replacement options.
Why is the air so dry in my home during winter?
Dry winter air is common because heating systems remove moisture as they warm the air. If you’re experiencing dry skin, scratchy throat, or static shock, you may benefit from a whole-home humidifier installation to balance your indoor air.
How often should my system be maintained?
We recommend twice per year:
- Once in spring for your AC
- Once in fall for your heating system
This ensures both units are ready before heavy seasonal use. Our maintenance plans include these visits.
What can I do to help my system last longer?
To protect your investment:
- Change filters regularly
- Keep outdoor units clear of debris
- Don’t block vents with furniture
- Schedule annual maintenance
- Use a programmable thermostat
How can I schedule a service appointment?
Scheduling is easy — just:
- Call us at 423-564-3284
- Email heartlandhvac1@gmail.com
- Or reach out through our Contact Page
We offer $99 service calls and accommodate same-day appointments whenever possible.
How important is humidity control?
Very. In Tennessee, humidity plays a major role in comfort and air quality. High humidity can lead to mold, musty odors, and system strain. Proper HVAC design includes humidity control to prevent excess moisture or dry air issues.
How long does it take to install a new system?
Most standard system installations are completed in one full day. Larger or custom setups may take longer, but we’ll walk you through the entire process so you know exactly what to expect.
Why do I need maintenance on a new system?
Even new systems need maintenance to:
- Keep your warranty valid
- Maintain high energy efficiency
- Maximize comfort and airflow
- Extend system lifespan
How often do filters need replacing?
Standard 1″ filters should be replaced every 30–90 days, depending on pet hair, dust levels, and system use.
We recommend pleated MERV 8–11 filters for better filtration in most homes.
What temperature should I set my thermostat on?
General efficiency recommendations:
- Summer: 74–78°F while home, 82–85°F when away
- Winter: 68–72°F while home, 62–65°F when away
Programmable thermostats can manage this automatically.