Furnace & Air Connection

Air Conditioning Throughout History

It’s hard to imagine a modern world without air conditioning. There would be no refrigerators to store food, so grocery shopping almost every day would become necessary. An icebox would only keep food good for 2-3 days, so there would always be a higher risk of food poisoning. Skyscrapers would certainly not be very comfortable places in which to work. Many people living in hotter climates like Phoenix, Arizona would not be able to stand the 100-degree heat and probably would have to move up north, at least during the summer months. People with asthma and migraines would have a hard time living in Washington DC, where they need clean indoor air quality to escape the airborne impurities.

There hasn’t always been air conditioning available, especially not to those who were less than wealthy. How was air conditioning ever invented? Was there any way to cool a home before electric air conditioning? There is a rich history behind the evolution of air conditioning and it spans more than just the last century, making the modern comforts we enjoy today possible.

Cooling as Done By the Ancients

Using machinery to cool the air has been a recent technology, but cooling homes has been done throughout history. During the time when the Roman Empire dominated Western culture, wealthier Romans enjoyed cooled homes in the summer months. They used aqueducts, or channels, that moved water from one part of the house to another. Full-scale aqueducts would send drinking water to all parts of the city, but used within a home, these aqueducts evaporated air as it moved and could cool the rooms.

The Romans weren’t the only ones in the world working on the development of cooling technology. The Chinese were inventing rotary fans powered by water to provide air movement within a building. The Persians would dig large cisterns, or pools, in their courtyards. When this water evaporated, it cooled the surrounding area. These may seem like rudimentary methods now, but they were effective means for providing relief during seasons of intense heat.

The Beginning of Air Conditioning as We Know It

Michael Faraday, a British chemist and physicist, discovered how to use machinery to provide air conditioning in 1820. By compressing and liquefying ammonia, the air that evaporated from the liquid would be cooler than the normal air temperature. These principles were used early on to produce ice in large quantities. In the 1830s, a physician named John Gorrie adapted this principle and used a fan to blow over a bucket of ice, producing cooler air for those confined to the hospital.

In order to cool printing plants, which were made extremely hot by the intense machinery and equipment, the first electric air conditioner was made in 1902 by Willis Haviland Carrier. By lowering the temperature in the factory, this cooling system saved paper from being warped as it was being printed on. He called it, ‘The Apparatus for Treating Air.’ Stuart Cramer patented the term ‘air conditioning’ in 1906 when he used Carrier’s cooling system to condition yarn as it was being used in the textile plants.

From the beginning, electric air conditioners could be quite dangerous because of the chemicals they utilized. The initial designs for electric air conditioners used ammonia and propane. In 1928, scientists began using Freon as a refrigerant because the chemical was found to be much less dangerous to people. With these modifications, people were using air conditioning systems in their cars by the 1940s.

Continuing Advances in Air Conditioning Technology

As time went on, it became more and more apparent that Freon, though not as dangerous to people as ammonia, was quite harmful to the environment. In 1987, the United Nations issued the Montreal Protocol to make known the harmful qualities of chlorofluorocarbons. The US abandoned the use of CFCs entirely in 1995 after finding alternative chemicals that did not emit CFCs. New technologies are being developed all the time to save the environment, improve the efficiency of the equipment, and improve air quality all at the same time.

Today, technicians can go to school to develop their education around HVAC technologies and take courses to see how the designs have changed throughout history. Air conditioning diplomas are useful tools for a career in the thriving HVAC industry.

Don’t forget, the space suits that Neil Armstrong and Buzz Aldrin wore as they walked on the moon utilized principles of air conditioning in order to cool them. Many great achievements in the last century have been made possible with the advancement of air conditioning and refrigeration technologies. Imagine where we will be in another hundred years.

The Refrigeration School, Inc. trains heating, ventilation, and air conditioning technicians in the repair and maintenance of the varied HVAC technologies. They offer flexible class schedules and hands-on training to allow you to learn just what you need to advance in the field. Enroll today to begin the secure career you’ve always wanted. The Refrigeration School, Inc. is located in the heart of Phoenix, AZ with surrounding areas including Tempe, Gilbert, Chandler, Mesa, and Scottsdale, Arizona.

How To Hire A Hvac Contractor

HVAC means heating, ventilation and air conditioning contractors. These are people you hire to install your much needed heating and air conditioning systems in the home and buildings. They are certified professionals who possess the proper knowledge and skills in installing, repairing and cleaning all types and size of units whether small or large.

Before getting HVAC contractors, be sure you have the pertinent information such as the climate in your location, the amount of sunlight you get every day and areas in the home which may be hard to ventilate. The contractors normally ask for these information which they use in taking the necessary measures from installing air conditioning units, heaters, furnaces, ducts and ventilation. HVAC people do their work in all types of homes, whether extensions, new construction, remodels, kitchens, bathrooms, guest houses and garage apartments.

Some people do not have experience dealing with HVAC contractors especially those who buy a heating or cooling system already installed in the house they purchase. Sometimes, this makes it difficult for them to get the best deal.

This should not be a problem, though, as there are some ways to make the process of hiring the right ones easier. The most important steps to take are to ask for recommendations from friends who have had previous experience with contractors. Friends, relatives or colleagues in your office will surely have somebody to recommend for you.

Once you have a list of names, you may make a call to each one of them to find out how long they have been in the business and then check their references as well as their licenses. The references are vital as you can get additional information from them about the skills and experiences of the HVAC contractors. Verify their credentials, license, insurance and Business Bureau membership.

While talking to your prospective contractors, you can ask how they will determine the correct size of the new system and if you need to get a permit or they can get it for you.
After making the necessary interviews, it’s time to pick your choice. For additional information, you may want to ask for quality certifications such as Diamond Certification. Now that you have your preferred HVAC, your next step is to negotiate for the best deal.

It is crucial that you know what you need. Explain the type of heating, cooling or ventilation work required in your home and any problems you may have encountered in the past. The details are important to them as it will allow them to project the cost of the job.

Listen very well to the questions asked by your contractor and write them down if possible. Take note of the time he is willing to provide to you as this is proof of his proficiency.
List down your questions for your contractor, too. You can ask about the number of jobs they have done, their specialization, the length of time needed to complete the job for you, if they have a workers’ compensation and liability insurance, do they do the job themselves or do they hire subcontractors and if they will do all the work from removing the old materials to installing the new unit.

Finally, ask your HVAC contractor to provide you a signed written pricing, timing, quality and warranty agreement. And after the work is done, be sure to ask him some written handling instructions for the new installations.

Learn about the different types of home heating systems and find heat pump deals

Fireplaces - To Add Warmth And Save Energy Consumption

Tips For Buying A Good Furnace

The gas furnace is affordable to employ, as the gas is readily accessible. The electric furnace as compared to the gas furnace has a higher cost.

As the winters approach, many of us start considering about fireplaces and furnaces in order to keep our house warm during winters. Whether you thinking to purchase a new furnace or set up new fireplace, there is huge collection of furnaces and fireplaces obtainable from the market. Thus, selecting one can be a bit tough.

Nevertheless, following are the various features that you must look while buying a furnace.

1. Decide what kind of furnace you want

Deciding what type of furnace you want is very important. There are two kinds of furnace available in the market.

The Gas Furnace: This furnace is very affordable to employ, as the gas is readily accessible. In this kind of well-maintained furnace, the smoke produced is enclosed within the exchanger that goes out via exhaust vent. Always remember that a gas furnace should be verified by an expert professional one time in a year minimum. The expert would verify the gas heating system for leaks, holes, or cracks.
The Electric Furnace: The electric furnace as compared to the gas furnace has a higher cost. Since the electric furnaces not use the flames, thus it does not produce carbon monoxide. In addition, the electric furnace is safer and cleaner than the gas furnace.

2. The superiority of Furnace

The superiority of the furnace distinguishes that how well and how long the furnace will perform. Selecting the right kind of furnace, which has an account of reliability and quality, could be less expensive for the long run. Inquire your contractor regarding, which company will suit the best according to your requirements.

3. The effectiveness of the Furnace

The effectiveness of the gas furnace is determined through its Annual Fuel Utilization Efficiency or AFUE ratings. This ranking makes out how proficiently the gas is being consumed. The gas furnaces with escalated ratings values more than those of lower ratings.

The Mid-Effective Furnaces: The mid-effective furnaces are also known as non-condensing furnaces or the induces draft furnaces.
The High-Effective Furnaces: The high-effective furnaces are called as the sealed combustion furnaces or condensing furnaces. Few furnaces use the two-stage control device and a proficient variable-speed glide in order to mount effectiveness as well as comfort.

4. The comfort attributes of furnaces

Numerous furnaces offer attributes, which mount efficiency and comfort.
The attributes of a two-speed furnace: The furnace could work at low speed for majority of the time. It enables for a much quieter process for longer period as compared to the single-speed furnaces. The two-speed unit provides improved circulation that averts heated air from mounting and the cooler wind to settle down. It gives much reliable temperature in house.
The attributes of a variable-capacity furnace: Furnaces, which have variable capacity, offer a mixture of comfort and efficiency. The variable-capacity includes a motor, which regulates your requirements by mechanically adjusting air speed and volume. The variable-capacity furnace offers the most effectual cooling and heating.

5. The noise level of furnace

Regrettably, not all the furnaces come with a normal rating structure for sound unlike the air conditioners and heat pumps. Though the variable capacity and the two-speed units usually function at a low level of noise, the warmth degree of difference is condensed so that the squeaking noise is eliminated.

andre andre is author of this article on Furnaces. Find more information about Air Conditioning here.

Staying Cool This Summer With A Home Air Conditioning

When the weather starts heating up and reaching the sweltering level, most people want nothing more than a cool place to relax and escape from the scorching heat. Having home air conditioning is an important and integral tool in making family and guests feel comfortable and taken care of while within the walls of your house. This is particularly true if you happen to live in a very warm and humid climate.

When thinking about purchasing a home, again especially in the warmer climes, it is a good idea to carefully examine the existing air conditioning system in the home. At the same time, anyone looking to build a new house should also carefully consider the air conditioning options that are available, as it is much more cost effective to put a whole-house air conditioning system in during the building process, rather than install it later.

Where the climate in very warm and humid, centralized home air conditioning is common in homes and is hard to get along without. While central air conditioning systems are more expensive to install initially, they do provide more control over the indoor environment and are usually more energy efficient when there are more than just a couple of rooms to be cooled.

There are a number of different types of central air conditioning units available for homes. Each type has its strong points and advantages and some have drawbacks, or at least considerations that need to be taken into account when making a decision. It makes sense to spend some time reviewing the different models available and also consulting with heating and air conditioning professionals if there is any confusion about what might be the best type of equipment for your particular situation.

Most people will choose to install a centralized, heating and air conditioning system that will heat as well as cool the home. Purchasing one of these heating/cooling systems will provide functionality no matter what the time of year. Most of the time, you can more than recoup your investment in these systems through an increase in the value of your home. One of the best ways to finance this kind of upgrade is through the use of a home equity line of credit, which generally provides the best interest rate for home improvements.

These central, air conditioning and heating units are available for use with gas for the heating, or you can choose the models that provide heating and cooling using only electricity. In areas of the country where it gets very cold in the winter, gas heat is recommended because it is more efficient and will cost less to run.

It is becoming more popular to select energy efficient home air conditioning models. This is not only because of the monthly savings in terms of lower electricity bills, but there is an additional advantage as well. There is a federal tax credit of as much as $300 that people can take advantage of when they choose approved models of air conditioning systems.

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