healthy house institute

4 Free HHI Books:

Creating a Healthy Household, The Healthy House Answer Book, Healthy Home Building, The Healthy House 4th Edition
Your email will only be used as described in our Privacy Policy

Follow us on Twitter



Proud Supporter of:



HHI-Pedia Entry

Combustion Gases

By HHI Staff

There are a number of gases formed during combustion; the material being burned will determine the specific gases and their concentration. The most common combustion gases found in houses are released during the burning of heating fuels.

Carbon Monoxide
Carbon monoxide (CO) is produced by the incomplete combustion of materials such as natural gas, wood, coal, oil, kerosene, gasoline, and tobacco.


entry continues below ↓

We do not strictly control Google ad content. If you believe any Google ad is inappropriate, please email us directly here.

Colorless and odorless, carbon monoxide is especially deadly because our bloodstream absorbs the gas readily. Even small amounts of carbon monoxide in the air can lead to an oxygen deficiency in the bloodstream. This can result in impaired vision and brain function, irregular heartbeat, headaches, nausea, weakness, confusion, and even death.

Unvented kerosene, propane and oil space heaters, fireplaces, wood and coal-burning stoves and furnaces are potential sources of carbon monoxide.
Sulfur Dioxide
Sulfur dioxide (SO2) is produced when sulfur-containing fuels are burned. It is colorless and can have an odor, depending on the concentration.

Sources include kerosene space heaters, natural-gas or fuel-oil appliances, wood stoves, and fireplaces. When it comes in contact with moist mucous membranes, sulfur dioxide forms sulfurous acid, which can be irritating to the nasal and respiratory tracts.
Nitrogen Dioxide
Nitrogen dioxide (NO2) sources include natural-gas and fuel-oil appliances, kerosene heaters, wood burning and cigarettes.

NO2 is highly toxic, irritating, has a pungent odor, and is reddish brown in color. Health effects include burning and choking sensations in the upper respiratory tract, changes in sensory perception, and irritation of eyes and skin.


HHI Error Correction Policy

HHI is committed to accuracy of content and correcting information that is incomplete or inaccurate. With our broad scope of coverage of healthful indoor environments, and desire to rapidly publish info to benefit the community, mistakes are inevitable. HHI has established an error correction policy to welcome corrections or enhancements to our information. Please help us improve the quality of our content by contacting with corrections or suggestions for improvement. Each contact will receive a respectful reply.

The Healthy House Institute (HHI), a for-profit educational LLC, provides the information on as a free service to the public. The intent is to disseminate accurate, verified and science-based information on creating healthy home environments.


While an effort is made to ensure the quality of the content and credibility of sources listed on this site, HHI provides no warranty - expressed or implied - and assumes no legal liability for the accuracy, completeness, or usefulness of any information, product or process disclosed on or in conjunction with the site. The views and opinions of the authors or originators expressed herein do not necessarily state or reflect those of HHI: its principals, executives, Board members, advisors or affiliates.

Combustion Gases:  Created on April 1st, 2010.  Last Modified on May 19th, 2011


References listed above credit sources The Healthy House Institute consulted for background or additional information.

All HHI-PediaTM content is © 2005-2018 The Healthy House InstituteTM.

Except for third-party Copyrighted© material, you may freely use, excerpt or cite this material provided the Healthy House Institute receives credit and the Web address is plainly listed with all uses, excerpts or citations.


We do not strictly control Google ad content. If you believe any Google ad is inappropriate, please email us directly here.



Information provided by The Healthy House Institute is designed to support, not to replace the relationship between patient/physician or other qualified healthcare provider.

Education Partners



Popular Topics: Air Cleaners & Air Purifiers | Allergies & Asthma | Energy Efficiency & Energy Savings | Healthy Homes | Green Building
Green Cleaning | Green Homes | Green Living | Green Remodeling | Indoor Air Quality | Water Filters | Water Quality

© 2006-2018 The Healthy House Institute, LLC.


About The Healthy House Institute | Contact HHI | HHI News & Media | Linking Resources | Advertising Info | Privacy Policy | Legal Disclaimer


HHI Info