When a furnace maintenance is performed a combustion analysis should be performed to identify any problems that couldn't be found by a visual inspection. You want to know what the Carbon monoxide level your furnace is producing as well as the oxygen/CO2 levels and stack temperate. The analyzer will also give you a calculated efficiency rating with the information the analyzer receives. You should have >100ppm of Carbon monoxide output during normal operation of your gas furnace. When you have higher numbers or CO numbers increasing during operation their is a problem with the furnace the technician should then find the cause of. This is just a brief explanation I'm trying to get across to those who get their furnace maintained and to those who don't! Check to see if anyone in the company has a NCI certification for carbon monoxide/combustion analysis.

Furnace Service Company


In a lot of homes, in Chicago Illinois, the initial HVAC installation was banged together to get it done. We’ve found big errors in heat system installations, like heat registers that aren’t hooked up and ducts that are open and pumping heat into your crawlspace or attic, or thermostats installed in the wrong place. Our Heating system technicians can survey your HVAC system and suggest improvements that will improve your comfort and save you wasted fuel bills.
When your heating and cooling system stops working, you need the help of a reliable, experienced, local service professional that can diagnose the problem and repair your air conditioner or furnace at a fair price. You can count on The Home Depot's licensed and insured heating and cooling professionals for all your heaters, air conditioning units, and any ventilation needs.
AAA Heating and Cooling has been the leader in residential and commercial furnace installation, heating services and air conditioning repair for thousands of clients throughout Portland, Beaverton, Hillsboro, Lake Oswego and the surrounding areas for over half a century. As a family-owned Portland, OR business, we offer a variety of services, including the installation of home heating and air conditioning systems, AC and furnace service and repair, duct cleaning as well as a variety of commercial heating and cooling solutions.

Heating Repair

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