Dirty furnace filters are one of the most common causes of a furnace failure. A dirty furnace filter can limit the airflow through your furnace and cause it to overheat. If you suspect a dirty air filter, change the filter, press the reset button (if your furnace has one) and see whether your furnace begins to emit heated air. Change your furnace filters regularly — pros recommend changing them once a month — to ensure that your furnace continues to work properly. Unaddressed, dirty furnace filters can cause extensive, and expensive, damage to your home’s heating system.


Gas is currently the most common heating fuel and most new central-heating systems use gas. How efficiently a furnace converts gas into heating energy is reflected in its annual fuel-utilization-efficiency (AFUE) rating, which is measured as a percentage. The higher the number, the more heat the furnace can wring from each therm of gas. Since efficient furnaces generate fewer emissions, environmental considerations might also influence your decision.

We are committed to providing you with services that are effective and efficient. We do the job right the first time, but more importantly, we won't charge our customer when we didn’t fix it the first time. For almost 30 years, we have been providing our customers with work from industry-certified technicians. Our team has the skill and knowledge to get the job done right the first time out!
As a Bryant Factory Authorized Dealer, we meet rigid criteria for technical training, customer approval ratings, and insurance coverage. Serving the Chicagolands North Shore since 1940, we’ve honed our services to accommodate local issues and ensure maximum reward. Improving the health of our customer’s home and lifestyle, Effective Air offers cost-effective and expert service throughout Glenview, Kenilworth, Wilmette, Winnetka, Evanston & Northbrook, IL.
As Idaho’s HVAC comfort and zoning specialists, Ultimate Heating & Air handles all of your residential heating, cooling, and air quality requirements.  For every project, we target energy efficiency and reliability of your essential equipment, trimming cost of operation and ownership, while optimizing comfort.  Through industry-leading innovations in both products and strategies, we simplify the challenges of everyday life, put you in superior control over your indoor environment, and promote sustainable solutions.
If your heating system in Everett, WA is not working it is likely your furnace needs repair or service. At times the fix is simple, other times it is not. Our heating and furnace service technicians have years of experience working on furnaces like yours in Everett, WA. C.M. Heating has service vehicles on call that are fully equipped with the tools and parts necessary to get your furnace back up and operating.
High-efficiency condensing furnaces (90% AFUE and above) are a bit more complex than conventional furnaces. The main differences between a conventional and condensing furnace is the heat exchanger technology used to extract heat from the combustion process and the method used to exhaust the combustion gases. In these ways, the furnaces are very different. The condensing furnace does not have a significantly more efficient combustion process than does a conventional furnace; both use gas burners with electronic ignition. The difference lies in that the condensing furnace has a more efficient heat extraction process after combustion.
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