Furnace Tune-Up or Dryer-Vent Cleaning from Green Home Air Duct Cleaning (Up to 76% Off)

Green Home Air Duct Cleaning Chicago

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Up to 76% Off
20+ bought

What You'll Get


Choose Between Two Options

  • $29 for a furnace tune-up ($120 value)
  • $69 for a dryer-vent cleaning ($140 value)

Forced-Air Furnaces: Let There Be Heat

The winter months would be nigh unbearable without central heating. Read on to learn how forced-air furnaces keep things toasty.

There’s nothing quite as awful as being able to see your breath on a cold winter’s night from your own living-room couch. Unfortunately, heating systems have been known to break down, often when the thermometer reaches its lowest depths. Although mechanics train for years to be able to fix faulty furnaces, the forced-air system itself is relatively straightforward, consisting of only four main parts: the thermostat, the burner, the heat exchanger, and the blower.

Once the thermostat senses that the air temperature has dropped below a set number (say, 72 degrees Fahrenheit), it sends an electrical signal to the burner. Attached to the burner is the gas valve, which controls the flow of fuel, and the igniter, which sets the fuel ablaze safely within the metal confines of the burner. Next to the burner is the heat exchanger, a piece of metal that warms quickly over the flames of the burner. The blower sends cold air whooshing over the exchanger, quickly raising the air’s temperature as it enters the duct system to warm the house and swiftly melt any snowmen snowballs trapped in the vents.

Bonus Points

  • Each room typically has two vents—one for the hot air and one to carry the colder air back to the furnace, where the cycle repeats.
  • As soon as the desired temperature is reached, the thermostat shuts off the burner to conserve energy.

The Fine Print


Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required. Limit 1/person, may buy 3 additional as gifts. Limit 1/visit. Valid only for option purchased. 24hr cancellation notice required. Valid only for residential properties within 20 miles of 60016. Valid for labor only; excludes hot water or steam boilers and tankless water heater. Additional fees apply for any roof-top units. Cannot be combined with any other offer or promotion. Cannot be applied to current or past jobs. Valid for 1 standard dryer vent. Not valid for 2nd floor stackable dryer vent or roof vented dryers. Cannot be used to cover cost to repair damaged venting. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About Green Home Air Duct Cleaning


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