$49 for Air-Duct Cleaning, Vent Cleaning, and Furnace Inspection from Dean's Service Inc ($199 Value)

Philadelphia

Value Discount You Save
$199 75% $150
Give as a Gift
Limited quantity available
Over 10 bought

In a Nutshell

Techs improve the air quality of your home, boost the efficiency of your dryer, and make sure your furnace is running safely and efficiently

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. May be repurchased every 180 days. Appointment required. Limit 1 per person, may buy 1 additional as a gift. Limit 1 per visit. Limit 1 per household. Must use promotional value in 1 visit. All goods or services must be used by the same person. Valid within a 40 mile travel radius of 19145. Negative pressure cleaning for unlimited supply vent, one main, and one return vent. Brush cleaning, sanitation, furnace cleaning available for extra charge. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $49 for air-duct cleaning, dryer-vent cleaning, and furnace inspection ($199 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 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.

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