$39 for AC or Furnace Tune-Up from Sub-Cooled ($79 Value)

South Bend

$39
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In a Nutshell

Performance tune-up focuses on the safety and reliability of heating or cooling equipment

The Fine Print

Promotional value expires 180 days after purchase. Amount paid never expires. Valid only within 12 miles of zip code 46383. Appointment required. Merchant's standard cancellation policy applies (any fees not to exceed Groupon price). Limit 1 per person, may buy 1 additional as gift. Limit 1 per visit. Limit 1 per household. Valid only for option purchased. 24-hour cancellation notice required. Additional fees may apply for services outside of service area. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

The Deal

  • $39 for an AC or furnace tune-up ($79 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.

A Chat with Sub-cooled LLC Heating and Air Conditioning

What services does your business offer and what makes your business stand out from the competition?
Our service practices separate us from the competition. We are formally educated and keep up with the latest in technology in the industry. We perform our work with integrity and respect your home in the process. Sub-Cooled LLC is one of the few service providers offering Bryant HVAC products.

What was the inspiration to start or run this business?
We have a passion for the trade that was passed down by family members. There is a lack of quality service providers, and skilled technicians in our trade. Sub-Cooled LLC wants to offer a cost effective option for quality heating and cooling products and service.

What do you love most about your job?
Making a repair for a customer in a distressed situation is the greatest feeling.

What is the best reaction you've ever gotten from a customer?
Gratitude after restoring comfort to a customers home for themselves and family members.


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