Air Conditioners | Replacement & New Construction | Chattanooga

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Types of Air Conditioners

At Indoor Comfort Techs Heat & Air we sell, install and service all major Brands of Air Conditioners.  There are many different efficiency levels ("Seer Ratings") and cooling capacities (“tonnage”) of air conditioners available today.  However to keep it simple, all the different units can be divided into three distinct major types or categories; single stage, two stage and variable speed speed units.

Efficiency or SEER

'SEER' measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame.   A higher SEER rating means greater energy efficiency.  Therefore, the higher the SEER rating the less electricity a unit consumes in a season.

As of January 2006, all residential air conditioners sold in the United States must have a SEER of at least 13.  ENERGY STAR qualified Central Air Conditioners must have a SEER of at least 14.5.

Starting January 1, 2015, split system central air conditioners installed in the Southeastern Region of the United States of America must be at least 14 SEER.  The Southeastern Region includes the following states: Alabama, Arkansas, Delaware, Florida, Georgia, Hawaii, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia.  Similarly, split system central air conditioners installed in the Southwestern Region must be a minimum 14 SEER and 12.2 EER beginning on January 1, 2015.  The Southwestern Region consists of the states of Arizona, California, Nevada, and New Mexico. Split system central air conditioners installed in all other states outside the Southeastern and Southwestern regions must continue to be a minimum of 13 SEER.

Tonnage or Capacity

Air Conditioner

The ton of an air conditioner is a rating of the unit's ability to remove heat from your home or business. A ton of cooling is 12,000 BTU’s and residential air conditioners are made in sizes of 1.5 ton to 5 ton in half ton increments. A BTU is a measure of heat which stands for British Thermal Unit and one BTU is equal to the amount of heat one wooden match puts out.

In other words, a 1.5 ton air conditioner will remove the amount of heat the 18,000 matches would emit if they were all burning at the same time. The reason it is called a ton is that is the amount of heat (12,000 BTU) it would take to melt one block of ice weighing a ton in one hour. The job of an air conditioning contractor is determining the correct size or tonnage of a unit for you, and in this case it is not a matter of the more the better.

An oversize air conditioner will not remove the proper amount of moisture from the air to give you the comfort you deserve. An undersized air conditioner will run constantly even at moderate temperature and will not adequately condition the space. There are some air conditioners you can slightly oversize and still get very good dehumidification and those are two speed and variable speed units. A variable speed furnace will also help in having a system that not only keeps you cool, but dry also.

Single Speed Air Conditioners

Single speed air conditioners produce the same amount of heat removal all the time regardless of how hot and muggy it is outside. They have to be large enough to cool you on the hotter days of the year and because of that, they are larger than needed on the moderate days. A good contractor selects a unit in the middle, as it is a bad idea to pick a unit sized that will handle a peak day when the bulk of the time we do not see peak temperatures.

This means that on a 100 degree day the unit will run constantly, but that is far better that picking a large enough unit to handle the few days it goes over a 100. Single speed units come in three different SEER ratings; 13, 14 and 15 seer. All these units can use any type of indoor furnace or air handler and they are 35 to 50 percent more efficient than most 15 to 20 year old units you might have in your home or business.

Single Speed Air Conditioner

Two Speed Air Conditioners

2 Speed Air Conditioner

Two speed air conditioners have two distinct output capacities to better condition your home. These units have the ability to change the amount of cooling capacity they produce depending on how hot it is. Because they can slow down and run longer, they do a better job of removing moisture and providing enhanced comfort.

A two speed air conditioner can run in low or high speed depending on the temperature outside that day. These units are very efficient and provide a high level of comfort and dehumidifcation.

Variable Speed Air Conditioners

Variable Speed units are the very best air conditioners available and provide extreme comfort and moisture removal unlike any other system available. Instead of turning off and on all day causing temperature swings along with hot and cold spots, a variable speed unit has 700 different outputs to accurately and efficiently provide temperatures to 1/10 of a degree of what is desired.

The variable speed units are also the quietest on the market and can barely be heard running. Coupled with a variable speed indoor unit these systems can heat and cool a home for up to 60% less than an older unit and will take out 10% to 15% more moisture in the summer due to their extended run times at very low speed. 

Variable Speed Air Conditioner

We provide Air Conditioning Sales & Installation as well as Service and Repairs to these Cities in the Chattanooga area: Apison | Avondale | Birchwood | Brainerd | Charleston | Chattanooga - Downtown | Chattanooga Metro | Cleveland | East Brainerd | East Lake | East Ridge | Fort Oglethorpe | Harrison | Hixson | Lookout Mountain | McDonald | Ooltewah | Red Bank | Ringgold | Saint Elmo | Sale Creek | Signal Mountain | Soddy Daisy | Tiftonia | University Of Tennessee Chattanooga | Walden's Ridge

Call us at (423) 553-8110

About us

Indoor Comfort Technologies is a locally owned business located in Chattanooga, Tennessee. We proudly serve Chattanooga, Tennessee and all surrounding communities. While we obviously do most of our work at your home and/or your office, we do have an office located at 739 Ashland Terrace, Chattanooga, TN 37415

Contact us

Indoor Comfort Technologies
739 Ashland Terrace #206
Chattanooga, TN 37415

Tel: 423 553 8110
423 667 2794 Sales Specialist
Fax: 423 553 8110


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