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]
Central home air conditioner service systems consist of two major components: a condensing unit that sits outside your house, and the evaporator coil (often referred to as an A-coil) that sits in the plenum of your furnace or air handler. The refrigerant in the A-coil picks up the heat from your home and moves it to the outdoor condensing unit. The condensing unit fan blows outside air through the condensing coil to remove the heat. The condensing unit houses the three parts replaceable by a DIYer: the contactor, the start/run capacitor(s) and the condenser fan motor. The condensing unit also houses the compressor, but only a pro can replace that. The A-coil has no parts that can be serviced by a DIYer.
Advantages of the ductless system include smaller size and flexibility for zoning or heating and cooling individual rooms. The inside wall space required is significantly reduced. Also, the compressor and heat exchanger can be located farther away from the inside space, rather than merely on the other side of the same unit as in a PTAC or window air conditioner. Flexible exterior hoses lead from the outside unit to the interior one(s); these are often enclosed with metal to look like common drainpipes from the roof. In addition, ductless systems offer higher efficiency, reaching above 30 SEER.[39]
For residential homes, some countries set minimum requirements for energy efficiency. In the United States, the efficiency of air conditioners is often (but not always) rated by the seasonal energy efficiency ratio (SEER). The higher the SEER rating, the more energy efficient is the air conditioner. The SEER rating is the BTU of cooling output during its normal annual usage divided by the total electric energy input in watt hours (W·h) during the same period.[33]
Before calling to schedule your appointment, it may be helpful to familiarize yourself with the air conditioning equipment that you have. Make sure you know at least the brand name, the model and the approximate age of the system, as well as any warranties that may be in effect—and read through our AC FAQ to see if any of your symptoms sound familiar.
Given the broad price ranges above, it's easy to recognize that the cost of your furnace repair varies drastically based on which parts need attention. As a result, it makes sense to gain a better understanding of the parts that heat your home, and how much they cost to repair. Repairing or replacing your furnace’s blower motor can cost you anywhere between $150 and $450, depending on the extent of the damage. Heat exchanger repair costs can vary greatly, from as little as $100 for a simple fix to as much as $1,200 for a full replacement. Repairing a furnace igniter will only cost you $300 at most, while flame sensor repairs generally fall between $80 to $250. The average cost to repair your Thermostat will range from $108 to $282.
Before calling to schedule your appointment, it may be helpful to familiarize yourself with the air conditioning equipment that you have. Make sure you know at least the brand name, the model and the approximate age of the system, as well as any warranties that may be in effect—and read through our AC FAQ to see if any of your symptoms sound familiar.
The manufacture and use of CFCs has been banned or severely restricted due to concerns about ozone depletion (see also Montreal Protocol).[63][64] In light of these environmental concerns, beginning on November 14, 1994, the U.S. Environmental Protection Agency has restricted the sale, possession and use of refrigerant to only licensed technicians, per rules under sections 608 and 609 of the Clean Air Act.[65]
Relax—ABC Plumbing, Heating, Cooling & Electric is here for you when you need us most! Our highly trained, background-checked technicians perform heating and air conditioning repairs quickly and efficiently to keep your family warm and cozy all winter long. With over 65 years of experience, you can trust that we’ll fix your furnace correctly the first time.
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.
Yes. You should expect to pay a diagnostic fee to cover the cost of the technician's visit, the diagnosis of your air conditioner's problem, and a quote for the repair options. You will be advised of the issue along with recommended options to correct it, which may include a system replacement if your unit is old or significantly damaged. If you decide to replace the system, the diagnostic fee will be credited toward your replacement purchase.
For new installation or upgrades to heating/cooling systems, including geothermal and ductless units, the team from Mountain Valley Home Comfort delivers exceptional return from your investment. We stand behind new system installation with a five year labor warranty, and handle every job to higher standards across New Market, Mount Jackson, Timberville, Broadway, Edinburg, Luray, Stanley, Fulks Run, Basye & Harrisonburg, VA.
Our factory trained and regularly trained specialists arrive right on time, dressed in uniform, prepared for the job, and respect your property.  When you call on Efficient Comfort, we answer with local, good people doing great work.  Contact us at (720) 627-6391 for prompt, expert, and affordable comfort solutions throughout Boulder, CO, Westminster, CO, Broomfield, CO, Golden, CO & Louisville, CO.
Multiple inventions within this time frame preceded the beginnings of first comfort air conditioning system, which was designed in 1902 by Alfred Wolff (Cooper, 2003) for the New York Stock Exchange, while Willis Carrier equipped the Sacketts-Wilhems Printing Company with the process AC unit the same year. Coyne College was the first school to offer HVAC training in 1899.[12]
In Denver, when it comes to fast, reliable and high quality AC repair, we here at Brothers Plumbing Heating And Electric are the company to call. Our Denver AC repair and replacement technicians are always standing by to give you a helping hand with any and all of your air conditioning problems. We are the go-to company when it comes to AC repair in Denver. Give us a call today. Click here to learn more about our cooling services today.
During those frigid winter months, keeping your home warm is absolutely essential for your family’s health and well-being. An inefficient home heating system not only makes for an uncomfortable home life in the winter, it also drives up home heating costs. The past few years have yielded many advances in furnace and heating system technology, with manufacturers producing significantly more efficient equipment. A more energy efficient furnace or heating system keeps your home from losing heat which translates into visible savings on your heating bill. Whether you are looking for heating repair service or a complete overhaul of your home heating system and new heater installation, the HVAC technicians at Airtron keep everything Simple. Friendly. Direct.
The cost of a new furnace might make you balk at first thought, but with modern manufacturers offering an extremely diverse range of options with varying AFUE ratings, optional accessories, and more, there is a furnace to meet any budget! It’s just important that you work with the right service team and experts that will work with you rather than try to “sell” you.

“Accurate, extremely thorough and knowledgeable quote for a complete replacement AC system for my home. Installation was neat and completed in a day as promised. Everyone was on the same page regarding the entire transaction and all technicians were polite and helpful. No question I would use them for any further AC related problems in the future.” – Daryl


Cut down on energy costs and prevent damage to your furnace by addressing a gas furnace that's overactive or short cycling. Besides the need for consistently comfortable temperatures, this issue could cause long-term safety issues to your home, making it very important to address. From a faulty thermostat to a dirty filter, there are several possible causes to investigate.
×