Here at Brothers Plumbing, Heating, and Electric, we have a Home Care Club that provides members with many benefits. These benefits include: 2 year warranty on all work (drain work is excluded), transferable club membership, no “show up” fees, priority service, 10% discount on repairs, quarterly newsletters, carefree scheduling (we will contact you and remind you when you need service), 2 free furnace/air conditioner filter changes, exclusive coupons, quarterly drawings, 4 on-going safety checks, and a 100% satisfaction guarantee. So if you’d like to join our Home Care Club, then give us a call or click here today.
As a technical industry, the heating and cooling field is associated with annual advances. New energies make our industry an exciting place to work. Our team thrives on keeping up to date with all changes in the HVAC field. We are here to share our knowledge with each customer. When you are ready to update your HVAC system, we can help you select the ideal system for your home.

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.
At BGE HOME, our customers trust our courteous and knowledgeable technicians to repair the most sophisticated heating and air conditioning system breakdowns. Every BGE HOME technician is licensed in their trade and adheres to a stringent in-house certification program that guarantees their knowledge, affirms their commitment to the customer, and ensures excellence in completing every heating and air conditioning repair with the highest level of quality.
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.

When your furnace needs immediate repair, trust the professionals at BGE HOME. We understand that furnace problems are more than a mere inconvenience – they can have a serious impact on the health and safety of you and your family. Our technicians are available 24-hours a day for emergency repairs. Click to schedule your repair and have peace-of-mind knowing that a licensed, certified HVAC technician will have your system up and running as quickly as possible. For 24-hour emergency furnace repair service, call 1-888-243-4663.
Should you need to replace an air conditioning unit, Abacus Plumbing recommends Lennox brand of air conditioning and heating systems. Lennox systems offer the highest level of home comfort at the lowest possible cost of operation. Additionally, these systems are praised by consumer publications and meet or exceed all government standards for efficiency. Learn more about installation »
When your furnace needs immediate repair, trust the professionals at BGE HOME. We understand that furnace problems are more than a mere inconvenience – they can have a serious impact on the health and safety of you and your family. Our technicians are available 24-hours a day for emergency repairs. Click to schedule your repair and have peace-of-mind knowing that a licensed, certified HVAC technician will have your system up and running as quickly as possible. For 24-hour emergency furnace repair service, call 1-888-243-4663.
CIBSE publishes several guides to HVAC design relevant to the UK market, and also the Republic of Ireland, Australia, New Zealand and Hong Kong. These guides include various recommended design criteria and standards, some of which are cited within the UK building regulations, and therefore form a legislative requirement for major building services works. The main guides are:
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.
In 1995, Germany made CFC refrigerators illegal.[22] DuPont and other companies blocked the refrigerant in the U.S. with the U.S. EPA, disparaging the approach as "that German technology".[21][23] Nevertheless, in 2004, Greenpeace worked with multinational corporations like Coca-Cola and Unilever, and later Pepsico and others, to create a corporate coalition called Refrigerants Naturally!.[22][24] Then, four years later, Ben & Jerry's of Unilever and General Electric began to take steps to support production and use in the U.S.[25] In 2011 the EPA decided in favor of the ozone- and climate-safe refrigerant for U.S. manufacture.[17][26][27]
An alternative to packaged systems is the use of separate indoor and outdoor coils in split systems. Split systems are preferred and widely used worldwide except in North America. In North America, split systems are most often seen in residential applications, but they are gaining popularity in small commercial buildings. The split systems are a great choice for small buildings where ductwork is not feasible or where the space conditioning efficiency is of prime concern [21]. The benefits of ductless air conditioning systems include easy installation, no ductwork, greater zonal control, flexibility of control and quiet operation [22]. In space conditioning, the duct losses can account for 30% of energy consumption [23]. The use of minisplit can result in energy savings in space conditioning as there are no losses associated with ducting.
Allow our experts to help with any of your heating and cooling needs or questions. Our wide array of expertise and background will benefit you and your home, whether you are considering a replacement system or evaluating your whole system to check for areas of improvement. We can help you reach your optimum indoor comfort. Give us a ring at 866-397-3787 or request an appointment online.
Our goal is to make you more comfortable in your home. When your furnace, central air conditioner, heat pump or boiler stops working and you need service, call the professionals at BGE HOME. Heating and cooling system breakdowns occur at the most inconvenient times, so rely on our certified, skilled technicians to make the repair quickly and correctly the first time.
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.
Dichlorodifluoromethane (R-12) was the most common blend used in automobiles in the U.S. until 1994, when most designs changed to R-134A due to the ozone-depleting potential of R-12. R-11 and R-12 are no longer manufactured in the U.S. for this type of application, so the only source for air-conditioning repair purposes is the cleaned and purified gas recovered from other air conditioner systems. Several non-ozone-depleting refrigerants have been developed as alternatives, including R-410A. It was first commercially used by Carrier Corp. under the brand name Puron.[citation needed]

Even with the best air conditioning repair service Phoenix can offer, an AC unit that has reached the end of its shelf life must be replaced. If you are ready to upgrade or replace that aging system, call us now for a free estimate, or check out our AC Unit Replacement section. In addition to offering our own Precision Line with the best warranty available in the industry, we also partner with industry leaders to offer the highest quality equipment at the best possible price, and we personally stand behind all of our new equipment installations.

Natural ventilation is a key factor in reducing the spread of airborne illnesses such as tuberculosis, the common cold, influenza and meningitis. Opening doors, windows, and using ceiling fans are all ways to maximize natural ventilation and reduce the risk of airborne contagion. Natural ventilation requires little maintenance and is inexpensive.[19]
Without proper ventilation, carbon monoxide can be lethal at concentrations of 1000 ppm (0.1%). However, at several hundred ppm, carbon monoxide exposure induces headaches, fatigue, nausea, and vomiting. Carbon monoxide binds with hemoglobin in the blood, forming carboxyhemoglobin, reducing the blood's ability to transport oxygen. The primary health concerns associated with carbon monoxide exposure are its cardiovascular and neurobehavioral effects. Carbon monoxide can cause atherosclerosis (the hardening of arteries) and can also trigger heart attacks. Neurologically, carbon monoxide exposure reduces hand to eye coordination, vigilance, and continuous performance. It can also affect time discrimination.[15]

AC units and thermostats have built-in delay features when they’re shut down and then repowered. The delay can be as long as 10 minutes. And, if you’ve subscribed to an energy-saving device from your local power utility, the unit can take even longer to reset. If you’ve installed the parts shown and reinstalled the disconnect block, repowered the circuit breaker, turned on the switch at the furnace, moved the thermostat to AC mode and lowered the temperature below the indoor temperature, and the unit doesn’t fire up after 30 minutes, it’s time to call a pro.
The first air conditioners and refrigerators employed toxic or flammable gases, such as ammonia, methyl chloride, or propane, that could result in fatal accidents when they leaked. Thomas Midgley, Jr. created the first non-flammable, non-toxic chlorofluorocarbon gas, Freon, in 1928. The name is a trademark name owned by DuPont for any chlorofluorocarbon (CFC), hydrochlorofluorocarbon (HCFC), or hydrofluorocarbon (HFC) refrigerant. The refrigerant names include a number indicating the molecular composition (e.g., R-11, R-12, R-22, R-134A). The blend most used in direct-expansion home and building comfort cooling is an HCFC known as chlorodifluoromethane (R-22).

American design standards are legislated in the Uniform Mechanical Code or International Mechanical Code. In certain states, counties, or cities, either of these codes may be adopted and amended via various legislative processes. These codes are updated and published by the International Association of Plumbing and Mechanical Officials (IAPMO) or the International Code Council (ICC) respectively, on a 3-year code development cycle. Typically, local building permit departments are charged with enforcement of these standards on private and certain public properties.
If your AC system is in need of replacement, the national average air conditioner installation costs range from $2,930 to $3,670. Costs can vary greatly depending on whether you are replacing a wall or window unit or a central air system. A central air system is connected to ductwork that runs throughout your house and pumps cooled air into your various rooms via vents and registers. A central air conditioning system is far more costly than wall or window units. Selecting a central AC system that has a high seasonal energy-efficiency ratio (SEER) will likely lower both your carbon footprint and your utility bill. The type of AC system you select, where you live in the country, and the regional costs of HVAC work, duct removal and replacement, and ductwork repairs that are needed are some of the main factors that affect the cost of new air conditioner installation. Here are some examples of average costs for installing forced-air systems.
Dehumidification (air drying) in an air conditioning system is provided by the evaporator. Since the evaporator operates at a temperature below the dew point, moisture in the air condenses on the evaporator coil tubes. This moisture is collected at the bottom of the evaporator in a pan and removed by piping to a central drain or onto the ground outside.
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]
Our Aurora furnace repair company only employs the highest quality professionals. We realize that dealing with a furnace is very serious, and we only have workers that are highly experienced in doing so. In order to deal with the best company that specializes in furnace replacement in Aurora and furnace repair in Aurora, you have to be sure that the company is professional and committed to a quality customer service experience.
When your furnace needs immediate repair, trust the professionals at BGE HOME. We understand that furnace problems are more than a mere inconvenience – they can have a serious impact on the health and safety of you and your family. Our technicians are available 24-hours a day for emergency repairs. Click to schedule your repair and have peace-of-mind knowing that a licensed, certified HVAC technician will have your system up and running as quickly as possible. For 24-hour emergency furnace repair service, call 1-888-243-4663.
Terrible - Explained to tech that we had cold air on heat status. I placed Thermostat on emergency heat and was able to get some heat. I told him TXU had installed a a new thermostat and I think he may have installed it incorrectly but wasn't, sure. He said it would cost us more money if he fixed problem if there was one. He said I could pay for it and get reimbursed from insurance company. When he said it would cost us money I said I would live with it. I plan on calling a reputable repair company. He did not check furnace or temperature of house
If you hear clicking that is followed by a hum or buzz, you’re probably hearing the fan motor attempting to start without the boost it needs from the capacitor. You can almost always conclude that the capacitor has failed. Sometimes you can get the compressor fan spinning (clockwise) by pushing it with a thin stick or long screwdriver poked through the grille. But the chances are good that this might work for one cycle, but the capacitor will fail next time the AC goes on. It’s best to replace the capacitor.
Vredevoogd Heating & Cooling technicians routinely assist our customers to figure out when it’s time to upgrade their Heating or Cooling system. Naturally, repairs are part of routine maintenance over the years. However, new models can save homeowners in a big way on energy expenses with their energy-efficient makeup. When you are ready to get a new system, we will do a careful check of your energy needs so that you can select the ideal system for your home’s needs. The wrong HVAC system for your home is a 15 year mistake that no one should have to afford. We install the right system for your home. Moreover, we offer guarantees that you won’t find just anywhere else. If your new installation isn’t right for your home, we’ll remove it free of charge at any time within that first year and refund 100% of your money. Our customers are burdened with no risks. We take on the risk because we are that sure of our expertise. We back our work with the strongest warranties in the field. In fact, we offer a wide array of warranties to provide you with the peace of mind you deserve as a valued Vredevoogd Heating & Cooling Grand Rapids MI customer.
We are aware that furnace repair in Denver can be expensive depending on what is malfunctioning. We are always ready to work with you to try to keep our services affordable. If you need furnace repair, you should not be overwhelmed or worried. One of our furnace repair technicians will help you maintain your system and keep it lasting longer by treating parts, replacing filters, and cleaning the system. Before we do any work at your home or business we will diagnose the problem and discuss with you what your best option is. Your satisfaction is our top priority and we always aspire to be the best from the moment you call to when we leave your home. Contact us for immediate furnace repair in Denver. To learn what it takes to become one of our team of professional furnace repair technicians, just click HERE.

Terrible - Explained to tech that we had cold air on heat status. I placed Thermostat on emergency heat and was able to get some heat. I told him TXU had installed a a new thermostat and I think he may have installed it incorrectly but wasn't, sure. He said it would cost us more money if he fixed problem if there was one. He said I could pay for it and get reimbursed from insurance company. When he said it would cost us money I said I would live with it. I plan on calling a reputable repair company. He did not check furnace or temperature of house
A number of other variables can influence your decision on whether to repair or replace your furnace, as well. In addition to cost and brand, consider the expected lifetime of your furnace. If it is more than 15 years old, it might make more sense to invest in a new unit even if it costs more than simply repairing the current problem. Long-term costs also play into the equation. For example, your new furnace may be more energy efficient than the current unit. Even though you will pay more for the actual installation, you might be able to make back your investment through lower energy bills. To make your decision, consult with a reliable professional on what to do. In inspecting your furnace, they will be able to make an informed recommendation that looks not just to the next year, but years into the future. That way, you can make the best possible decision for your home and budget long-term.
Vredevoogd Heating & Cooling Grand Rapids MI routinely serves the areas of Grand Rapids, Wyoming, Lansing, Grandville, and Kalamazoo. We provide a comprehensive menu of HVAC services delivered by certified HVAC technicians who specialize in heating and cooling repair and installation. World-class customer service is a cornerstone of our business and we are committed to doing the job right the first time. We have a reputation for integrity and service excellence. By living up to our good name, we continue to build our customer base throughout the Michigan region and look forward to adding you to our service family. So if you are looking for a “heating & air company near me” in Grand Rapids, or a Furnace Repair Lansing, Furnace Repair Kalamazoo and more. Call today.
In 1995, Germany made CFC refrigerators illegal.[22] DuPont and other companies blocked the refrigerant in the U.S. with the U.S. EPA, disparaging the approach as "that German technology".[21][23] Nevertheless, in 2004, Greenpeace worked with multinational corporations like Coca-Cola and Unilever, and later Pepsico and others, to create a corporate coalition called Refrigerants Naturally!.[22][24] Then, four years later, Ben & Jerry's of Unilever and General Electric began to take steps to support production and use in the U.S.[25] In 2011 the EPA decided in favor of the ozone- and climate-safe refrigerant for U.S. manufacture.[17][26][27]

The basic concept behind air conditioning is said to have been applied in ancient Egypt, where reeds were hung in windows and were moistened with trickling water. The evaporation of water cooled the air blowing through the window. This process also made the air more humid, which can be beneficial in a dry desert climate. In ancient Rome, water from aqueducts was circulated through the walls of certain houses to cool them. Other techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season.[5]
At BGE HOME, our customers trust our courteous and knowledgeable technicians to repair the most sophisticated heating and air conditioning system breakdowns. Every BGE HOME technician is licensed in their trade and adheres to a stringent in-house certification program that guarantees their knowledge, affirms their commitment to the customer, and ensures excellence in completing every heating and air conditioning repair with the highest level of quality.

Poorly maintained water cooling towers can promote the growth and spread of microorganisms,[56] such as Legionella pneumophila, the infectious agent responsible for Legionnaires' disease, or thermophilic actinomycetes. As long as the cooling tower is kept clean (usually by means of a chlorine treatment), these health hazards can be avoided or reduced. Excessive air conditioning can have a negative effect on skin, causing it to dry out, and can also cause dehydration.[citation needed]
HVAC repair technicians are properly qualified to take care of anything that relates to installing, maintaining or repairing your heating, air conditioning and refrigeration systems. Our professionals have gone through rigorous training and certification and all our technicians and equipment installers are NATE-certified, which involves demanding testing and indicates a solid understanding of the industry.
Ventilation is the process of changing or replacing air in any space to control temperature or remove any combination of moisture, odors, smoke, heat, dust, airborne bacteria, or carbon dioxide, and to replenish oxygen. Ventilation includes both the exchange of air with the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanical/forced and natural types.[16]
It’s a rare occasion for a problem to arise with your heating or cooling equipment at a convenient time. In fact, we’re not even certain such a time exists! That’s why the team at HVAC & Plumbing Unlimited stands ready to provide complete emergency heating and cooling repairs. No matter the time of day or the day itself, we can be on the way and ready to provide prompt, cost-efficient services to our Alexandria clients.*
Vacuum the fins of your AC unit clean with a soft-bristle brush. Note: they’re fragile and can easily be bent or crushed. On many units you’ll have to unscrew and lift off a metal box to get at them. Check your owner’s manual for directions and lift off the box carefully to avoid bumping the fins. Follow these other steps to safely clean your home air conditioner for better efficiency.
At Aire Serv, we’re on call 24/7 to offer air conditioner repair when you need it most. We charge by the job, not by the hour, and there’s never an overtime charge. We explain all your options before starting repairs so you can decide what’s best for you. Our air conditioner repair experts are licensed and insured, and we guarantee our work the first time around. Since we service and repair all equipment brands, you can put your full confidence in us to professionally complete your AC repair.
It’s a rare occasion for a problem to arise with your heating or cooling equipment at a convenient time. In fact, we’re not even certain such a time exists! That’s why the team at HVAC & Plumbing Unlimited stands ready to provide complete emergency heating and cooling repairs. No matter the time of day or the day itself, we can be on the way and ready to provide prompt, cost-efficient services to our Alexandria clients.*
HVAC professionals in the US can receive training through formal training institutions, where most earn associate degrees. Training for HVAC technicians includes classroom lectures and hands-on tasks, and can be followed by an apprenticeship wherein the recent graduate works alongside a professional HVAC technician for a temporary period.[34] HVAC techs who have been trained can also be certified in areas such as air conditioning, heat pumps, gas heating, and commercial refrigeration.[35]
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]
Clean air delivery rate is the amount of clean air an air cleaner provides to a room or space. When determining CADR, the amount of airflow in a space is taken into account. For example, an air cleaner with a flow rate of 100 cfm (cubic feet per minute) and an efficiency of 50% has a CADR of 50 cfm. Along with CADR, filtration performance is very important when it comes to the air in our indoor environment. Filter performance depends on the size of the particle or fiber, the filter packing density and depth and also the air flow rate.[31]

The chill of winter can be a scary thought when your furnace needs repair. When the furnace in your home goes on the fritz, you need it fixed right away to keep your family safe and comfortable. Every BGE HOME technician is licensed and adheres to a stringent in-house certification program that guarantees their knowledge, affirms their commitment to the customer, and ensures excellence in completing every furnace repair with the highest level of quality.


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.
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Turn off the gas supply valve, typically located by your gas meter on the gas inlet pipe. Turn off the gas by rotating the valve one quarter turn with an adjustable wrench. When the gas is off,  the valve’s oblong stem points perpendicular to the inlet pipe. Then call your gas utility or the fire department from a remote location. Do not return to your home until you know it is safe.
AC units and thermostats have built-in delay features when they’re shut down and then repowered. The delay can be as long as 10 minutes. And, if you’ve subscribed to an energy-saving device from your local power utility, the unit can take even longer to reset. If you’ve installed the parts shown and reinstalled the disconnect block, repowered the circuit breaker, turned on the switch at the furnace, moved the thermostat to AC mode and lowered the temperature below the indoor temperature, and the unit doesn’t fire up after 30 minutes, it’s time to call a pro.
If you’re looking to maintain, replace, or repair your home or business’s air conditioning system, “Make the Precision Decision”™ and give us a call. We are available 24/7 for all your emergency service needs. Our service area includes Litchfield Park, Mesa, Avondale, Peoria, Phoenix, Chandler, Scottsdale, Sun Lakes, Gilbert, Surprise, Glendale, Tempe, Goodyear and surrounding areas.
As a Carrier Factory Authorized Dealer and President’s award winner, we specialize in world-recognized, award-winning, and technologically advanced heating, cooling and air quality products. From air conditioning and heat pumps to furnaces and boilers, you’re going to benefit from increased energy efficiency, decreased sound levels and innovative features that make everyday life easier, more enjoyable and far more comfortable. We provide FREE estimates and flexible financing opportunities. Our goal is to maximize value, sustainability and long-term customer satisfaction.
At Horizon Services, we strive to provide all of our customers with the peace of mind that comes from knowing that you have a skilled team on-call for any AC emergencies that may arise. We have more than 300 fully stocked trucks ready to go at a moment's notice. Our Horizon technicians undergo rigorous training, including a mandatory 150 hours of training every year, to ensure that they're always up to date on the latest techniques and HVAC technology. Plus, we perform extensive background checks, including drug and criminal checks, on all of our employees so you don't have to worry about letting a stranger into your home when your AC breaks down in the middle of the night. When you're dealing with an air conditioning emergency, trust the experts at Horizon Services!
When it comes to HVAC service in Cocoa Beach and throughout the Space Coast region, the team at Kabran Air Conditioning & Heating always has your best interests in mind. Not only do we provide the most innovative heating and air conditioning products from Carrier, we also offer flexible financing options, with approved credit, through Wells Fargo. Now you can enjoy your new furnace or AC system with additional financial benefits such as convenient monthly payments, competitive interest rates, and flexible payment options. To learn more about our financing options or to apply today, contact the premier HVAC company of Cocoa Beach today!
Architectural acoustics Architectural engineering Architectural technologist Building services engineering Building information modeling (BIM) Deep energy retrofit Duct leakage testing Environmental engineering Hydronic balancing Kitchen exhaust cleaning Mechanical engineering Mechanical, electrical, and plumbing Mold growth, assessment, and remediation Refrigerant reclamation Testing, adjusting, balancing

Air conditioning (often referred to as AC, A/C, or air con)[1] is the process of removing heat and moisture from the interior of an occupied space, to improve the comfort of occupants. Air conditioning can be used in both domestic and commercial environments. This process is most commonly used to achieve a more comfortable interior environment, typically for humans and other animals; however, air conditioning is also used to cool/dehumidify rooms filled with heat-producing electronic devices, such as computer servers, power amplifiers, and even to display and store some delicate products, such as artwork.
The heat pump gained popularity in the 1950s in Japan and the United States.[13] Heat pumps can extract heat from various sources, such as environmental air, exhaust air from a building, or from the ground. Initially, heat pump HVAC systems were only used in moderate climates, but with improvements in low temperature operation and reduced loads due to more efficient homes, they are increasing in popularity in cooler climates.
In the United States, HVAC engineers generally are members of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), EPA Universal CFC certified (for installation and service of CFC HVAC devices), or locally engineer certified such as a Special to Chief Boilers License issued by the state or, in some jurisdictions, the city. ASHRAE is an international technical society for all individuals and organizations interested in HVAC. The Society, organized into regions, chapters, and student branches, allows exchange of HVAC knowledge and experiences for the benefit of the field's practitioners and the public. ASHRAE provides many opportunities to participate in the development of new knowledge via, for example, research and its many technical committees. These committees typically meet twice per year at the ASHRAE Annual and Winter Meetings. A popular product show, the AHR Expo, is held in conjunction with each winter meeting. The Society has approximately 50,000 members and has headquarters in Atlanta, Georgia.
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