In the most general sense, air conditioning can refer to any form of technology that modifies the condition of air (heating, (de-) humidification, cooling, cleaning, ventilation, or air movement). In common usage, though, "air conditioning" refers to systems which cool air. In construction, a complete system of heating, ventilation, and air conditioning is referred to as HVAC.[3]


Furnace breakdowns, no cooling when outside temperatures are soaring – heating and cooling repairs often catch us unexpectedly, making HVAC repair costs quite a surprise. Many homeowners worry when calling the HVAC repair contractor because of unexpected costs – your heating and cooling contractor won’t be able to give you a price for the repairs needed until he or she inspects the system to find the source of the problem.
Gator Air Conditioning is a Florida heating, cooling, air conditioning, air conditioner, heat pump, and furnace repair, service, replacement and maintenance Company located in Manatee County. Gator employs only the best technicians for air conditioner repairs and, furnace repairs, ductless mini-split systems repairs, air conditioner replacements, furnace replacements and heater replacements in Bradenton FL, Brandon FL, Sarasota FL, Lakewood Ranch FL, Longboat Key FL, Palmetto FL, Anna Maria FL, Terra Ceia FL, Parrish FL, Apollo Beach FL, Cortez FL, Ellenton FL, Myakka City FL, Ruskin FL, Sun City FL, Sun City Center FL, Lutz FL, Holmes Beach FL, University Park FL, Wimauma FL, Valrico FL, and Whitfield Fl. To set-up a repair service estimate or replacement estimate, call 941-749-6000. So when you ask to find "A good heating and air conditioning repair or service company near me," you've come to the right place. Gator Air Conditioning services all furnace, AC, filter and thermostat brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Frigidaire, Gibson, Goodman, Maytag, American Standard, Aprilaire, Honeywell, White Rodgers, Dynamic, Daikin, Mitsubishi, Fujitsu and Skuttle.

Furnace breakdowns, no cooling when outside temperatures are soaring – heating and cooling repairs often catch us unexpectedly, making HVAC repair costs quite a surprise. Many homeowners worry when calling the HVAC repair contractor because of unexpected costs – your heating and cooling contractor won’t be able to give you a price for the repairs needed until he or she inspects the system to find the source of the problem.


Precision’s technicians are all NATE certified. This is the highest certification in the air conditioning industry. With that, we can take pride in saying that we provide the best AC repair Phoenix residents can get. Our technicians are thoroughly screened and tested before they begin work on your home. Our AC technicians provide top-notch Phoenix air conditioning repair, and proof of that is their ability to repair most every brand of HVAC equipment. These brands include Trane, Bryant, Ruud, Goodman, Amana, Precision, Armstrong, Carrier, Coleman, Honeywell, Janitrol, Lennox, Payne, Rheem, York, Goettl, American Standard along with many more.
The 2nd-century Chinese mechanical engineer and inventor Ding Huan of the Han Dynasty invented a rotary fan for air conditioning, with seven wheels 3 m (10 ft) in diameter and manually powered by prisoners of the time.[6] In 747, Emperor Xuanzong (r. 712–762) of the Tang Dynasty (618–907) had the Cool Hall (Liang Dian 涼殿) built in the imperial palace, which the Tang Yulin describes as having water-powered fan wheels for air conditioning as well as rising jet streams of water from fountains. During the subsequent Song Dynasty (960–1279), written sources mentioned the air conditioning rotary fan as even more widely used.[7]
Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. (Minisplit ductless systems are used in these situations.) Outside of North America, packaged systems are only used in limited applications involving large indoor space such as stadiums, theatres or exhibition halls.

If your air conditioning is blowing warm air—or not working at all—it's time to call in the experts. After all, we're not just talking about an uncomfortable afternoon on a hot day: we're talking about your happiness at home, and a problem that may cause extensive damage to your system if not addressed quickly. That's why it's smart to catch problems early before they become expensive to address.
If your air conditioning is blowing warm air—or not working at all—it's time to call in the experts. After all, we're not just talking about an uncomfortable afternoon on a hot day: we're talking about your happiness at home, and a problem that may cause extensive damage to your system if not addressed quickly. That's why it's smart to catch problems early before they become expensive to address.

Circulating refrigerant vapor enters the compressor, where its pressure and temperature are increased. The hot, compressed refrigerant vapor is now at a temperature and pressure at which it can be condensed and is routed through a condenser. Here it is cooled by air flowing across the condenser coils and condensed into a liquid. Thus, the circulating refrigerant removes heat from the system and the heat is carried away by the air. The removal of this heat can be greatly augmented by pouring water over the condenser coils, making it much cooler when it hits the expansion valve.
Though Harrison had commercial success establishing a second ice company back in Sydney in 1860, he later entered the debate over how to compete against the American advantage of ice-refrigerated beef sales to the United Kingdom. He wrote: "Fresh meat frozen and packed as if for a voyage, so that the refrigerating process may be continued for any required period", and in 1873 prepared the sailing ship Norfolk for an experimental beef shipment to the United Kingdom. His choice of a cold room system instead of installing a refrigeration system upon the ship itself proved disastrous when the ice was consumed faster than expected.[citation needed]
High-efficiency condensing furnaces (90% AFUE and above) are a bit more complex than conventional furnaces. The main differences between a conventional and condensing furnace are the heat exchanger technology used to extract heat from the combustion process and the method used to exhaust the combustion gases. In these ways, the furnaces are very different. The condensing furnace does not have a significantly more efficient combustion process than does a conventional furnace; both use gas burners with electronic ignition. The difference lies in that the condensing furnace has a more efficient heat extraction process after combustion.
The Environmental Protection Agency (EPA) requires that all technicians who open a system containing a controlled refrigerant be certified to do so. There are four levels of certification, one of which is a “universal” certification to allow the HVAC technician to work on any type of equipment containing refrigerant. Your HVAC technician should be certified as “Level II Certified” at a minimum or, preferably, “Universal Certification” to work on your central air conditioner. Obtaining this certification information from your professional HVAC technician may be required in the event you are working with a realtor to sell your home. Costs for certification average $40 to $240.
Some of the things that determine air conditioning capacity in Arizona include, but are not limited to: your area’s unique climate, monsoon humidity, number of windows, their location, and their NFRC rating, ceiling and wall insulation factors, which direction your home is facing, how much heat your appliances produce, how high your ceilings are, if you have a basement, if you have proper attic ventilation, the location of trees on your property, and even the number of people who occupy the home. 

Our technicians are factory trained and have mastered all aspects of HVAC service. They also undergo constant training so that they will always be at the top of their game. We believe that staying informed of advances in air conditioning technology is one of the best ways we can guarantee satisfaction for our customers, whether we are handling an air conditioning repair or installing a new heat pump. We are licensed, bonded and insured.
We’ve proudly represented the very best Atlanta has to offer in superior service for 50 years. In that time, we’ve accumulated all it takes and more to bring you the best emergency heating and air conditioning repair services possible. Story after story, we deliver smiles! If you’re looking for a reliable company that provides 24-hour AC repair, don’t hesitate to contact us right away—770-913-6412!
We had an exceptional experience with Gator Air, in particular Carlos. He presented us with quotes for different types of AC units, told us facts about said units and left us to make our decision. No high pressure sales. The installers were professional and cleaned up when they were through. A nice surprise was the 1 year free maintenance of the unit. We belonged to the Gator Club so to not have to pay it for the next year was an added bonus. Thank you GatorAir for making the experience an enjoyable one.
Most modern air-conditioning systems feature a dehumidification cycle during which the compressor runs while the fan is slowed as much as possible[citation needed] to reduce the evaporator temperature and therefore condense more water. When the temperature falls below a threshold, both the fan and compressor are shut off to mitigate further temperature drops;[clarification needed] this prevents moisture on the evaporator from being blown back into the room.[citation needed] When the temperature rises again,[clarification needed] the compressor restarts and the fan returns to low speed.
The icing problem becomes much more severe with lower outdoor temperatures, so heat pumps are commonly installed in tandem with a more conventional form of heating, such as a natural gas or oil furnace, which is used instead of the heat pump during harsher winter temperatures. In this case, the heat pump is used efficiently during the milder temperatures, and the system is switched to the conventional heat source when the outdoor temperature is lower.

The use of CFC as a refrigerant was once common, including the refrigerants R-11 and R-12 (sold under the brand name Freon-12). Freon refrigerants were commonly used during the 20th century in air conditioners due to their superior stability and safety properties. When they are released accidentally or deliberately, these chlorine-bearing refrigerants eventually reach the upper atmosphere.[61] Once the refrigerant reaches the stratosphere, UV radiation from the Sun homolytically cleaves the chlorine-carbon bond, yielding a chlorine radical. These chlorine radicals catalyze the breakdown of ozone into diatomic oxygen, depleting the ozone layer that shields the Earth's surface from strong UV radiation. Each chlorine radical remains active as a catalyst until it binds with another radical, forming a stable molecule and quenching the chain reaction.
When your furnace isn’t regularly serviced it can operate less efficiently. This increases your energy bills and also prevents your furnace from keeping your home as warm as you like. Keep your furnace properly maintained with regular service. The national average furnace service cost is between $60 and $80. Companies may offer tuneup specials that cover all the necessary testing, tightening, measuring and cleaning to keep your equipment running at top efficiency. If you have a newer system, furnace service costs may be covered by your warranty. Outside of warranty, a basic tuneup might start at $58 and a more advanced maintenance cleaning could be over $120. Here are some signs your furnace may need service:

"Warren at Lighten Up came in on time and as scheduled. Loved working with him. He provided new lighting for our kitchen remodel and did a great job. He still needs to come back and hook everything up. Also Seth came in and did some plumbing work and repair that we did not even know needed repair. I highly recommend this company and look forward to working with them in the future"
If you have forced-air cooling but there’s still a room that’s hotter than all the rest, a duct or vent booster fan can increase the flow of cool air into that room. Two types of booster fans are available. An in-line duct booster fan (shown) fits inside the duct of the room you’re trying to cool. You mount the fan near the outlet and it automatically kicks on when your cooling system runs.
Hospital operating theatres, in which air is filtered to high levels to reduce infection risk and the humidity controlled to limit patient dehydration. Although temperatures are often in the comfort range, some specialist procedures, such as open heart surgery, require low temperatures (about 18 °C, 64 °F) and others, such as neonatal, relatively high temperatures (about 28 °C, 82 °F).
Business Description: Air Patrol AC specilizes in Residential and Commercial comfort systems. All our technicians are factory trained to work on your specific type of heating or cooling. Air Patrol AC offers some of the most comprehensive service plans to keep your AC and Heating units running more efficiently in the peak seasons, thereby saving you money. Keeping your AC and Heating units tuned to their optimal performance not only saves you money on your Gas and Electric bills but stops harmful wear and tear that can cause thousands of dollars worth of damage down the road.
Vredevoogd Heating & Cooling Grand Rapids values each and every customer. Servicing or installing your HVAC system means establishing a service relationship with each homeowner. We promise to earn your trust with our consummate level of professionalism and expert service. We back our work with the strongest industry guarantees because we value your continued business.
Although HVAC is executed in individual buildings or other enclosed spaces (like NORAD's underground headquarters), the equipment involved is in some cases an extension of a larger district heating (DH) or district cooling (DC) network, or a combined DHC network. In such cases, the operating and maintenance aspects are simplified and metering becomes necessary to bill for the energy that is consumed, and in some cases energy that is returned to the larger system. For example, at a given time one building may be utilizing chilled water for air conditioning and the warm water it returns may be used in another building for heating, or for the overall heating-portion of the DHC network (likely with energy added to boost the temperature).[4][5][6]
Most central air conditioners have two basic parts: an outdoor unit (compressor/condenser) that sits next to your home and an indoor unit (evaporator) that’s located in a central duct near your furnace. If you have a heat pump instead of a furnace, the indoor unit will be in the air handler. Use the same maintenance steps we show here. If your furnace looks different from the one shown or you have a heat pump, use the owner’s manual to find your way around it. The basic parts will be the same. Check out our step-by-step guide for deep-cleaning your home air conditioner.

An electric furnace provides warmth by moving air over and through a series of coils. Ductwork and vents then distribute that air to the individual rooms in your home. Repair costs will depend on both the brand and the exact nature of the problem, but tend to be lower than some of the options above. That's because the units are small, and issues tend to be contained within the heating elements themselves. Expect to spend less than $300 on your electric furnace repair, depending on the exact problem.


Air conditioning can also be provided by a process called free cooling which uses pumps to circulate a coolant (typically water or a glycol mix) from a cold source, which in turn acts as a heat sink for the energy that is removed from the cooled space. Common storage media are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter boreholes, equipped with heat exchanger. Some systems with small storage capacity are hybrid systems, using free cooling early in the cooling season, and later employing a heat pump to chill the circulation coming from the storage. The heat pump is added because the temperature of the storage gradually increases during the cooling season, thereby declining its effectiveness.
Most Michigan HVAC repair companies will often charge a “Travel Charge” or “Diagnosis Fee.” Randazzo calls this fee simply, a “Service Call Fee.” This will be the minimum cost of the repair. It is not recommended to judge a company on how expensive or how cheap their service rates are. In most cases, with larger companies the rates will be higher. This is not because they may have more overhead but simply because of the quality and preparedness of the service that will be preformed.
HVAC is an important part of residential structures such as single family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as skyscrapers and hospitals, vehicles such as cars, trains, airplanes, ships and submarines, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors.

It can be difficult to find the right company to do Aurora furnace repair and Aurora furnace replacement. When looking for the right help choose an Aurora furnace replacement and repair company that comes recommended and has a strong reputation. As a licensed furnace replacement company in Denver, Brothers Plumbing Heating and Electric has been working on the repair and replacement of furnaces for many years. Furthermore, we have a long list of happy customers that recommend us to all their friends and family.
This is probably the most common question we hear. To give an accurate price, we need to get a safety certified technician out to your home in a fully stocked truck to take a look at your particular situation. Our technician will give you a precise price with your options BEFORE any work begins. Each of our technicians are well trained, experienced, drug tested and background checked so that you can rest easy knowing your services will be performed in a timely and professional manner. If you need help paying for your services, we even offer financing with approved credit through Wells Fargo. Click here to learn more about our financing services.
Contending with South Florida’s temperature extremes is easy — if you have a heating and air conditioning contractor you can trust for prompt, dependable and affordable work. For over 40 years, our family-owned and operated company has helped home and business owners with their heating and cooling needs. From air conditioning repairs to maintaining heat pumps to installing a ductless system, you can rely on HI-VAC Air Conditioning Service. We are a full-service provider of HVAC services for Plantation, Miramar, Pembroke Pines, Weston, Coral Springs, Sunrise, FL, and the surrounding area.

We never appreciate the importance of our home’s cooling system until it starts to break down. A failing air conditioning system in need of residential AC repair has an adverse effect on our comfort, our health, and even our monthly expenses. While it might be nice to put off any AC system repairs until a later date, the longer you wait, the more likely you’ll have to pay some hefty home AC repair bills. Fortunately, with Gainesville Mechanical, Inc., we make air conditioning system repair as easy as possible. Our team of experienced technicians are trained in the latest industry advancements, and are well versed in all types of AC repair near Gainesville, GA. From commercial air conditioning repair to residential air conditioning repair, we can dispatch a service truck at a moment’s notice to take care of your emergency air conditioning repair needs. All the while performing our AC repair services in a manner of utmost courtesy and professionalism.


In 1758, Benjamin Franklin and John Hadley, a chemistry professor at Cambridge University, conducted an experiment to explore the principle of evaporation as a means to rapidly cool an object. Franklin and Hadley confirmed that evaporation of highly volatile liquids (such as alcohol and ether) could be used to drive down the temperature of an object past the freezing point of water. They conducted their experiment with the bulb of a mercury thermometer as their object and with a bellows used to speed up the evaporation. They lowered the temperature of the thermometer bulb down to −14 °C (7 °F) while the ambient temperature was 18 °C (64 °F). Franklin noted that, soon after they passed the freezing point of water 0 °C (32 °F), a thin film of ice formed on the surface of the thermometer's bulb and that the ice mass was about 6 mm (1⁄4 in) thick when they stopped the experiment upon reaching −14 °C (7 °F). Franklin concluded: "From this experiment one may see the possibility of freezing a man to death on a warm summer's day."[9]
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