Why Combustion Analysis is Critical for Your System!

What is a Combustion Analysis?

Combustion analysis is a detailed test performed by HVAC professionals to measure the levels of oxygen (O₂), carbon monoxide (CO), and other gases produced during the combustion process. It helps determine whether your furnace is wasting fuel, producing harmful gases, or running inefficiently.

Why is Combustion Analysis Important?

✅ Ensures Safety – Poor combustion can lead to dangerous CO buildup, which is odorless, invisible, and deadly.
✅ Improves Efficiency – A properly tuned system burns fuel more effectively, lowering your heating costs.
✅ Extends Equipment Life – Inefficiencies and improper combustion can cause excessive wear and tear on your system.
✅ Reduces Environmental Impact – Efficient combustion decreases emissions, making your home more eco-friendly.

Signs You May Need a Combustion Analysis

 🔥 Uneven heating in your home
🔥 Higher-than-usual energy bills
🔥 Frequent furnace cycling or shutting off unexpectedly
🔥 Yellow or flickering burner flame (instead of steady blue)
🔥 Soot buildup around vents or furnace components

If you notice any of these signs, it’s time to schedule a combustion analysis before minor inefficiencies turn into costly repairs—or worse, a safety hazard.

How a Combustion Analysis Works:

A trained HVAC technician will use specialized tools to test and measure:

 ✔️ Flue gas composition – Checking for dangerous CO levels.
✔️ Oxygen & carbon dioxide levels – Ensuring the furnace is burning fuel efficiently.
✔️ Flue temperature – Identifying heat loss and inefficiencies.

The results help fine-tune your system for optimal performance, improving both safety and efficiency.

Stay Warm & Safe This Winter



A combustion analysis is one of the most important HVAC inspections you can schedule to prevent hidden dangers and optimize your furnace’s performance. Don’t wait for a breakdown—schedule an inspection with Gerard Home Inspection today and ensure your system is running safely and efficiently.

Call us today to book your HVAC inspection!