What Is a Combustion Analyzer?

A combustion analyzer is a tool used by HVAC specialists, boiler technicians and others to test gas levels of carbon monoxide (CO), oxygen (O2) and heat to ensure appliances are burning properly. The results from the test provide insight into safe and efficient appliance operation so adjustments can be made to improve efficiency and eliminate harmful CO levels.

CO is emitted by the incomplete combustion of fuel with limited oxygen. It is a potent poison that can cause acute respiratory distress and long-term lung damage. Federal and state regulations require that CO levels be kept below certain thresholds to avoid environmental harm and prevent health hazards. The best way to achieve this is through combustion analysis which can help verify that an appliance is operating safely and efficiently by comparing a sample of the flue gas with an ideal air-to-fuel ratio.

Understanding the Importance of a Combustion Analyzer: A Comprehensive Guide

Modern combustion analyzers are portable and handheld products designed for use in the field. They typically feature a plastic case and digital alphanumeric display. Analyzers have sensors that measure the level of gases in a flue, such as CO and O2. They can also measure stack temperature, excess air, oxygen concentration and more.

Analyzers require maintenance and care just like any other tool or piece of equipment that you might own. They need to be cleaned and kept in good condition to get accurate readings and avoid contaminating the sensors with foreign matter. The typical analyzer has a water trap that collects condensation to prevent moisture from getting into the sensors. The water trap must be periodically emptied to avoid contamination and unreliable readings. Some analyzers have advanced functions such as data-logging, bluetooth connectivity and a printer.