If you pull out your home’s air filter, hold it up to a light. If you can’t see light coming through it, it’s most likely been a while since your last heating service, and likely time to get a new one. If it’s a simple disposable air filter, just replace it with a like-size new one. It’s also a good idea to write down the date you installed the new filter, so you know how old it is next time it needs to be replaced. Check the filter packaging to see how long the new air filter is supposed to be used.
Great article! I am having trouble identifying what to use for the aluminum or zinc strips to prevent organic growth and staining. How wide are the strips? Are they predrilled? I am starting to see black stains on the north facing asphalt shingles. Do you recommend treating that befor adding the metal strips? If so, 50/50 bleach and water or a commercial product?
Moncrief Heating and Air Conditioning has been providing furnace service, repair and installation in the Greater Atlanta area for over 118 years. Area homeowners and businesses have consistently given the Moncrief team 5-star reviews for our outstanding performance and customer service. We service both commercial and residential customers and can provide a wide range of services from a consultation to emergency furnace repair or replacement for new and existing customers throughout the Atlanta, GA area.
North Winds Heating & Cooling is an Okemos-owned full-service HVAC company that is available for all your heating and cooling needs in Lansing and the surrounding cities. We proudly serve the Greater Lansing area with a complete range of heating & cooling services – including residential, commercial, and industrial. Our  HVAC technicians have over 30 years combined experience in the heating and cooling field and will treat your repair or installation job like it’s their own. Our experienced HVAC team has the latest diagnostic tools and equipment needed to perform a variety of services that we offer such as air conditioning installation & repair, furnace repairs, and HVAC maintenance. 
To keep your natural gas furnace operating efficiently, you should have at least an annual tune up. Natural gas furnace preventative maintenance will help avoid operating problems. When issues are addressed early on, it’s more likely that they can be resolved with minimal cost. Worn out parts and clogged filters that happen over time can lead to more significant equipment failures.
You can, however, avoid many serious damages to your AC by scheduling your air conditioning repair as soon as you notice a problem with your system. No irregularity is too minor to contact a professional Kirkland air conditioning repair technician about. The longer you wait to schedule AC repair service, the more likely it becomes that your system will be seriously compromised.

The main purpose of your furnace filter is to ensure that none of the additional materials your fans pull back into the unit - such as hair and dust - actually damage the furnace or its parts. In the process, it also improves air quality in your home. Some annual inspections will include changing and cleaning this part of the unit. That said, you can also clean or change your furnace filteryourself. Costs for new filters range based on brand, but tend to be around $30.


Metro Heating & Cooling is a family owned and operated business, and we have been providingPittsburgh heating and cooling services and products since 1957. As a family owned and operated company, we take the term “customer service” to a whole new level, because we genuinely care about our customers’ needs and comfort. Our goal is to ensure your home or business has an HVAC unit that runs flawlessly in every aspect of the system, heating, cooling, and ductwork, and provides you with clean and comfortable air during the entire year. Another benefit of having heating and cooling services provided by a family owned and operated business is that the staff is consistent, well-trained, and has vast experience due to being with the company for many years. We are thankful for our exceptional staff that has kept the quality and reputation of our work unwavering over the years. To experience the difference with Metro Heating & Cooling, contact us today!

CM Heating performed an electric furnace Diagnostic - Upon investigation, I found that the sequencer has failed which is why all heat elements are not being activated (3 out of 5 work). This is the second replacement sequencer needed in less than 5 years of operation, the unit is an old model of air handler and only source of heat. Replacement of sequencer is needed, however, based on age and efficiency recommend upgrade of system.


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.
@Neil What is the use of repeating lessons when there is so much more to be learned? Technology has moved on from the adz. Plumbers use PEC, insulation is sprayed, glue-lams allow for open floor plans and furnaces are no longer stoked with coal. As for the new people, if these trades cannot attract fresh blood we will all be unable to get homes built and repairs made. I don't yearn for my first home with the leaky concrete block foundation, failing well pump and an oil furnace held up by the plenum. I'll take heat pumps, solar panels and PVC waste pipes any day.You can get all the sill plate repairs and flitch beams demos you need on YouTube.
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 are 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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