Frequently Asked Questions (FAQ)

We know that choosing and maintaining the right HVAC system can feel overwhelming — but we’re here to help. Below are answers to the most common questions we receive from homeowners in Hyattsville, Edmonston, Bladensburg, and nearby areas.

General HVAC Questions

What size HVAC system does my home need?

System size depends on square footage, insulation, windows, and layout. We recommend a professional HVAC audit to determine the proper capacity and avoid overspending on energy bills.

How often should I replace my HVAC filter?

Most filters should be replaced every 1–3 months. Homes with pets, allergies, or high usage may need more frequent changes.

What’s the average lifespan of an HVAC system?

With regular maintenance, systems typically last 12–15 years. Upgrading to high-SEER units can also increase performance and longevity.

Cooling Questions

What’s the difference between central AC and mini-split systems?

Central AC cools the whole home via ductwork, while ductless mini-splits provide targeted cooling with no ducts — great for additions or smaller homes.

Why is my AC running but not cooling?

Possible causes include refrigerant leaks, dirty coils, clogged filters, or a failing compressor. Contact us for AC repair in Hyattsville.

Heating Questions

Do heat pumps work in Maryland winters?

Yes! Today’s heat pumps perform well even in freezing temps. Dual-fuel systems can also combine a heat pump with a furnace for max efficiency.

Should I repair or replace my furnace?

If your furnace is over 15 years old, has frequent breakdowns, or causes high energy bills, it may be more cost-effective to install a new unit.

Indoor Air Quality (IAQ)

What’s causing dry air in my home?

Dry air in winter is common. A whole-home humidifier can balance moisture levels, protect wood floors, and reduce respiratory issues.

How do I improve air quality with pets or allergies?

We recommend HEPA air purifiers, routine filter changes, and duct cleaning every 2–3 years.

Smart HVAC & Automation

Can I control my HVAC from my phone?

Yes! Our smart thermostat options let you control your system via app, voice commands, or automation — even when you’re not home.

What is HVAC zoning?

Zoning lets you control temps in different parts of your home separately. Learn more on our Zoned HVAC page.

Emergency Services

Do you offer emergency repairs?

Yes! We provide 24/7 emergency HVAC repair in Hyattsville and nearby areas, including Edmonston and Bladensburg.

What’s considered an HVAC emergency?

No heating or cooling during extreme temperatures, leaking systems, or unusual smells/sounds all qualify. Call (227) 249-1654 any time.

Still have questions? Contact Swellfort Heating & Air Conditioning — we’re happy to help.