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Gas Furnace - Tom's Take / Blog Post

Gas Furnace

  • A gas furnace will have a flue pipe and a gas line coming out of the cabinet.
  • The unit only requires 110v electricity to run.
  • You will be able to see a flame inside the unit when it is running

AFUE ratings (80% to 98% AFUE) translate to your annual energy cost to heat your
home.  In other words, if you have an 80% AFUE Furnace, 80% of your energy dollars
actually go to heating your home and 20% go up the flue pipe. So, if you installed a 98%
AFUE Gas Furnace you would only be losing 2% of your energy dollars

Repair or service questions?

Contact us by email or Tel. 972-203-1317 for a friendly, free phone consult on your AC / Furnace / HVAC Repair needs (residential or commercial) in the Sunnyvale, TX, or greater Dallas / Ft. Worth area!


If your system is more than 10 to 15 years old it’s probably only a 60% AFUE and should
be replaced as soon as possible.    Single Stage Furnaces are great for milder climates, but more efficient heating can be achieved with 2 stage heating. Variable Speed Furnaces (blower speeds) also help to increase efficiency.

Call Tom Durbin AC & Mechanical and let us help you decide which system will best serve you.

Repair or service questions?

Contact us by email or Tel. 972-203-1317 for a friendly, free phone consult on your AC / Furnace / HVAC Repair needs (residential or commercial) in the Sunnyvale, TX, or greater Dallas / Ft. Worth area!

About Tom Durbin AC and Mechanical

Our business is located in Sunnyvale, Texas, and we service homes and businesses anywhere in the Dallas Metroplex. We are family owned and operated, have planned service agreements for both residential and commercial, service all makes and models of Air Conditioners, we not only service or repair, but can also conduct NEW installation and replacement for all major brands of air conditioning units. Even more important, we offer fair and friendly service with free consults - so ask us to help you figure out the best solution for your heating and air conditioning needs. We have certified, authorized repair staff and are a puron refrigerant specialists with 24 hour / 7 day emergency service.

AC, Furnace, HVAC Sales, Repair and Service - Dallas / Ft. Worth

From our offices in Sunnyvale, Texas, we service many communities in the greater Dallas / Ft. Worth area for their air conditioning, furnace, and HVAC repair and replacement. If you are looking for AC repair in Addison, Allen, Arlington, or Balch Spring. Furnace service in Bedford, Carrollton, Cedar Hill, Coppell, Texas, we offer some of the best rates and best AC / Furnace service available. Desoto, TX, and Duncanville AC, HVAC, Furnace repair, sales and service as well as air conditioning replacement in Euless, Fairview, Farmers Branch, Flower Mound, Forney, Frisco. In terms of Garland, Texas, we aim to be one of the air conditioning and heating service areas. Grand Prairie and Grapevine, TX, Heath and Highland Park, TX, and Hurst TX air conditioning repair and furnace repair. Irving, Lake Dallas, and Lancaster and Lewisville as well as McKinney, Mesquite, Murphy, Oak Cliff repair for major brands of air conditioner units, furnaces, and HVAC equipment. Plano Texas air conditioner repair as well as Plano furnace / HVAC sales and service. Parker, Richardson, Richland Hills, Rockwell, Rowlett, Sachse, Seagoville, University Park, Wilmer and Wylie - are all communities we service as one of the top-rated and best air conditioner replacement / repair services in Texas.