$35 for Air-Duct Cleaning for One Air-Conditioner and One Dryer-Vent System from Mr. Duct ($129 Value)

Phoenix

$35
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$129 73% $94
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In a Nutshell

Technicians clean dust and debris from ducts for one air-conditioning system and one dryer-vent system

The Fine Print

Promotional value expires 90 days after purchase. Amount paid never expires. Limit 1 per person, may buy 1 additional as a gift. Valid only for residents within 200-mile radius of zip code 85250. Valid for one AC system. Must purchase 1 voucher for each AC system to be used on a single visit. Valid for residential only. Not valid for apartment complexes. Additional fee for excessively dirty or clogged dryer vents. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $35 for an air-duct cleaning for one air-conditioner system and one dryer-vent system ($129 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.

Customer Reviews

The tech that came to my house was very professional and very thorough. Only gripe is that he said that to really be able to clean my ducts it would cost an additional $300. That should have been way more clear in the coupon description.
Adam S. · 5 days ago
Excellent Service. Mr. Duct is a very nice man!
Margaret S. · 5 days ago
excellent work and friendly service!
Christy D. · January 2, 2017

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.
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