The oil filter (found in oil-powered systems only) prevents small impurities from clogging the oil-burner nozzle, which could result in a misfire that shuts down the system. Richard first closes the oil valve, then removes the old filter and replaces it, setting aside the dirty filter to be disposed of according to local hazardous-waste regulations.
Finally, don't underestimate the thermostat as a potential reason why your furnace is not working. Everything on the heating unit itself may function perfectly, but your home still will not heat right if the console you use to set the temperature doesn't communicate your input. A faulty thermostat can either be due to the wall unit itself, or the wiring that connects it to your furnace. Average thermostat repair costs are between $108 and $282, including labor. Replacement costs, of course, depend on the thermostat you choose. Visit our thermostat repair cost guide to learn more about this type of issue.
Metro Heating and Cooling has been providing superior services for heating and cooling Pittsburghresidents have relied on since 1957. We are a Carrier Factory Authorized Dealer, which means we have met the strictest standards in the heating and cooling industry, and we offer the finest products available. Our technicians are NATE certified, so when you choose us for heating and cooling services, you can be assured that you are receiving exceptional care. Regardless of your HVAC needs, we have the solution, ranging from installations of AC units and furnaces, to minimal repairs and maintenance services. Beyond having comfortable air, we want our customers to have healthy air in their homes and businesses. We offer indoor air quality products and services so you know you are breathing the cleanest air possible. Contact us today to learn more about our heating and cooling services.

We concentrate on providing our residential and light commercial customers with superior service, installation, and replacement of heating and air conditioning systems. Our customers can count on our expertise in high efficiency heating and cooling equipment, air cleaners, humidifiers, boilers, heat pumps and in floor radiant heating. We are a Carrier Factory Authorized Dealer. We will help our customer choose the best product for their specific needs. We are very innovative and creative when solving many heating and cooling problems, including “in the floor hot water heat” and “hydronic zone heating” for different temperature requirements in the home or commercial building.


This is probably the most common question we hear. To give an accurate price, we need to get a safety certified technician out to your home in a fully stocked truck to take a look at your particular situation. Our technician will give you a precise price with your options BEFORE any work begins. Each of our technicians are well trained, experienced, drug tested and background checked so that you can rest easy knowing your services will be performed in a timely and professional manner. If you need help paying for your services, we even offer financing with approved credit through Wells Fargo. Click here to learn more about our financing services.
There’s a common misconception that you can save money by shutting the vents (supply registers) in rooms that aren’t being utilized. Resist the urge to close too many, as doing so can actually increase the pressure in your furnace, making it work harder to heat your home. This can lead to failed blower motors, mold or mildew in your ductwork, damage to the compressor, a cracked heat exchanger, and other problems. What Does a Furnace Tune-Up Include?
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.

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