Ask an HVAC Expert
Welcome to Ask the Tech, the advice hub from Fresh Air Heating & Cooling. Our licensed technicians answer your real HVAC questions, whether it’s about air conditioning fixes, furnace issues, indoor air quality, or seasonal maintenance. Serving Chesterfield, St. Louis County, and surrounding areas, we want to share the kind of expert insight you can trust.
Questions & Answers
Why is my furnace blowing cold air?
When your furnace isn’t heating, the problem might be as simple as a clogged filter or a faulty igniter. 👉 Read the full answer →
How Often Should I Service My AC?
Most Missouri homeowners benefit from scheduling AC maintenance twice a year — before summer and before winter. 👉 Read the full answer →
Why does my furnace smell like it’s burning when I first turn it on?
When you turn on your furnace and smell something burning, obviously is can be concerning, 👉 Read the full answer →
Should I Cover My AC Unit in the Winter?
This is a great question and one we get often with varying opinions… 👉 Read the full answer →
What’s the Most Energy-Efficient Way to Heat My Home?
Every fall, homeowners across Missouri ask the same question: What’s the best way to heat my home without spending a fortune?
The answer depends on 👉 Read the full answer →
How Much Does It Cost to Replace a Furnace in Missouri?
When Missouri’s winter chill sets in, a reliable furnace isn’t a luxury, it’s essential. If your system is old, noisy, or struggling to keep up, 👉 Read the full answer →