We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Flue Gas Analyzer?

Deanna Baranyi
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A flue gas analyzer is an instrument that monitors flue gases for emissions and efficiency purposes. A flue gas analyzer may be an inexpensive hand-held instrument or a large unit that is permanently installed with a flue. Typically, an analyzer has an internal memory system that stores gas readings until the values are loaded into a computer for further analysis. Some large models are attached directly to printers, so companies can have hard copies of their data as well.

Generally, a flue gas analyzer is used when a probe is inserted into the flue of a boiler, furnace, or other sources of combustion. There are several different analyzers that may be used, depending on the kind of gas being monitored or measured. For example, some analyzers use infrared meters, while others measure the electrochemical data of a gas.

Although the probe model is most common, a flue gas analyzer does not necessarily need to use a probe to monitor the gas in the flue. For example, an analyzer may pump the gas from the flue through a tube that is connected to the instrument. This is most common when a company wants to continuously monitor a large flue or if a probe cannot be inserted.

Sometimes, it takes a bit more effort to measure a gas accurately using a flue gas analyzer. For example, some gases, such as hydrogen chloride or sulfur dioxide, require that the tube connected to the analyzer be heated. Heating the tube prevents some gases from condensing into a liquid before they can be measured. In the alternative, some gases need to be cooled using an instrument called a Peltier cooler. The Peltier cooler cools a surface, such as the tube transferring the gas to the analyzer, so that any moisture in the gas will be removed before it is measured.

In most cases, after a gas is measured by a flue gas analyzer, a value of measurement is designated: the value may be in parts per million (ppm) or as a percentage. Typically, if the numbers are large, such as found when a flue gas analyzer is measuring carbon dioxide or oxygen, a percentage value will be assigned to it. If the numbers are small, such as found with the analysis of carbon monoxide, the value will be given in ppm.

Flue gas analysis using a flue gas analyzer is most commonly used in industries where there are legal mandates directing companies to monitor their emissions. It may also be used in areas where an industry wants to ensure they are being both efficient and environmentally conscious. By looking at data, a company can see whether they are emitting harmful gases into the air, creating pollution, or a variety of other environmental concerns.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Deanna Baranyi
By Deanna Baranyi , Former Writer
Deanna Baranyi, a freelance writer and editor with a passion for the written word, brings a diverse skill set to her work. With degrees in relevant fields and a keen ability to understand and connect with target audiences, she crafts compelling copy, articles, and content that inform and engage readers.

Discussion Comments

Deanna Baranyi

Deanna Baranyi

Former Writer

Deanna Baranyi, a freelance writer and editor with a passion for the written word, brings a diverse skill set to her...
Learn more
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.