Cleaning of Ducts or Cleaning of Ducts and Dryer Vent from National Air Duct Cleaning (Up to 84% Off)

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Over time, ducts collect dust, pet dander, and the lingering, unsaid thoughts our brains just can't hold in anymore. Clear the air with this Groupon.

Choose Between Two Options

  • $45 for duct cleaning for up to ten vents, one main line, one return, and one inspection (up to a $275 value)
  • $65 for duct cleaning for up to ten vents, one main line, one return, and one inspection with dryer vent cleaning (up to a $400 value)

Central Air Conditioning: A Quick-Change Act at Home

Take a peek at the principles of central air conditioning to understand just what your technician will be adjusting.

A refrigerant is a substance that transforms more easily than most from a gas to a liquid and back again. This shape-shifting is what makes modern air conditioning possible. Refrigerant cools the home by traveling through a compressor, a condenser, and an evaporator—the last a part of the furnace system inside the house, while the other parts reside in an air-conditioning unit that usually sits outside staring longingly at the family it works for.

It might seem natural to think of air conditioning as a process of blowing cool air into the home, but it might be more easily understood as a matter of carrying off hot air. Fans suck air from the home into the system and draw it across the coils of the evaporator, which house liquid refrigerant. As the refrigerant relieves it of its heat, the furnace’s blower and ducts distribute the now-cooler air throughout the home. Meanwhile, under heat, the refrigerant becomes a vapor that flows into the compressor, which further pressurizes the gas and propels it into the condenser.

Now it’s time to get rid of all that heat. In the condenser, heat is radiated away, helped along by the venting and large surface area of the metal fins on the outside of the unit. This lets the refrigerant cool down and return to liquid form, leaving it ready to flow back inside and pick up another load of the home’s heat.

Since it hit the market in 1932, central air conditioning has not only made it possible to build houses in the hottest regions of the country—it’s actually changed the way those houses are built. High ceilings, eaves, awnings, attics, and front porches were once standard elements of home architecture that provided relief from the stifling summer heat and invited bats to come flap their wings to make breezes. Central air made it both possible and, given the cost of installation, desirable to create simpler one-story homes without these architectural flourishes, leading to a post–World War II boom in sprawling modern developments.

National Air Duct Cleaning

The uniformed, bonded, and insured technicians from National Air Duct Cleaning visit homes and businesses to complete such services as cleaning air ducts, dryer vents, and air exchangers. They improve the health of allergy sufferers by ridding the HVAC system of dust, contaminants, and other debris that can talk back when you least expect it. They also perform regular cleaning of the furnace or AC to help the systems run more efficiently and prevent them from breaking down due to clogging.

In a Nutshell

Cleaning services rid dryer vents, air ducts, main lines, and up to ten vents of built-up debris for safe and efficient operation

The Fine Print

Expires 90 days after purchase. Limit 1 per person, may buy 2 additional as gifts. Valid only for option purchased. Limit 1 per household. Appointment required. 24hr cancellation notice required. Valid only within 40mi of 63121. Not valid for apartments or commercial buildings. Extra fee may apply for main lines located in crawlspace or attic. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

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