If you have gas appliances in your home you should be aware of Carbon Monoxide (CO). CO as it is known, is an odorless colorless gas that is produced when a fuel is burned. CO is poisonous and can cause severe illness and even death. The only way to know when CO is present in your home is to install a CO Detector. We recommend that any home having propane, natural gas or oil appliances have AT LEAST one Carbon Monoxide detector. Having your heating system checked yearly is a very good start, but that alone does not guarantee that you and your family are safe. Changing conditions in the equipment or weather can cause an unsafe condition to occur at any time. Only a quality CO Detector can continually monitor the air inside your home and alert you when an unsafe level is present. For more information call us at 703-541-1006 or e-mail us at northstar@northstarac.com.