4 Ways That Air Conditioning Changed the World


Can you imagine a world without air conditioning? I sure can’t.

From hospitals to sugary sweets and printing factories, they all benefited from controlled climate and lower humidity levels. Air conditioning even influenced migration from one city to another.

The first attempt to create an air conditioner was made by John Gorrie, a doctor, in the 1800’s when he realized that a controlled temperature could save many lives in hospitals and contribute to a more hygienic environment.

Unfortunately, the ice-trading industry at the time was so rich and influential that he stood no chance. His machine never even entered the market.

Only 60 years later, in early 1900’s, another inventor named Willis Carrier developed a machine that resembles the air conditioner we know today. But it took another 40 years for air conditioning to show up in homes and apartments.

Initially, climate control was used to protect products in factories and to cool down the movie theaters. Some say this is why the movie industry boomed. The summer was so hot, and since nobody had air conditioning at home, they would rather pay to see a movie in a cool and dry room.

With all this in mind, let’s explore 7 ways air conditioning changed the world as we know it.

1. Economic Boom

Imagine a factory in the middle of the summer. Everyone is sweating and the humidity is affecting the quality of the products as well.

Factories were the first to benefit from climate control. Chocolate production went up even during the summer, and workers were working all summer long as well.

Printing companies didn’t have to take a break during the hotter seasons anymore. Humidity and heat no longer affected the color of the ink.

Textile factories no longer had to worry about humidity and the heat either. All types of fabric absorb and release moisture, and when the temperatures are too high or too low, the thread loses its elasticity and the final product is brittle and lower in quality.

Many industries made more money and avoided losses due to sudden changes in temperature and humidity. On top of this, business owners no longer had to import ice, which was quite expensive at the time.

2. Architectural Changes

Homes and skyscrapers were made with small windows in mind, big enough to let the air come inside the building and small enough to prevent the light and the heat from penetrating the rooms.

Before air conditioning, the big, tall skyscrapers filled with windows weren’t possible simply because nobody could have stayed inside them without AC.

Houses were also designed to keep rooms cooler. Bedrooms were placed in the corners of the building, and a cupolas were added to roofs, as hot air has the tendency to go up.


Also, many houses were made out of stone, especially in warmer climates, to keep buildings cooler.

3. Fewer Skin Diseases

Before air conditioners were used, staying indoors was a really bad idea. Most people would have rather stayed outdoors to enjoy the breeze.


Unfortunately, back in the day, sunscreen wasn’t too popular either. And, of course, staying in the sun all day long with no protection increases your risk of skin cancer.


Sweat can also transmit life-threatening skin diseases such as staph. Even today, you can pick up this infection from the gym if the machines are not properly cleaned.

4. More Lives Saved in Hospitals

Imagine the intensive care floor without an air conditioning system during a hot summer, or an operating room without controlled climate.


For many years, patients suffered during surgeries and intensive therapy because of the heat, not to mention that in hospitals bacteria spreads quicker. Sweat, humidity, and mold become even more dangerous because they increase the chances of transmitting diseases from one patient to another.


Even less serious cases could be affected by extreme temperatures. For example, patients suffering from heart disease would have a problem cooling off their bodies as well as breathing.

5.High-Quality Storage Units

Imagine putting your stamps collection in a storage unit without climate control. The result would be disastrous.


Today, you can store almost anything in a self-storage unit, including delicate fabrics, fine art, old books, furniture, musical instruments, and classic cars. Most facilities have air conditioning and other features that will help you preserve your belongings.


Without climate control, many items tend to warp, dilate, or change their appearance completely due to sudden changes in temperature. For example, your collection of lead coins would transform into white powder if not stored properly.


Other metals are influenced by humidity and heat as well. Silver would go black and copper green.


Contributed by: Heating Furnace Fix , Experts in Airconditioning and HVAC





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8 Tips To Cut HVAC Costs


The air conditioning system in you home can increase the electricity bill by as much as 60 percent, but you can make some adjustments around the house to lessen its impact. All you have to do is follow the 7 steps below and your home will stay cooler without the need to spend a lot of money.


  1. Buy a Programmable Thermostat


A programmable thermostat will help you save a lot of money and can pay for itself in just one cooling season in most instances.


The reason why this is the case is that it never forgets to adjust the temperature when you can get away with it or shut the system off when you are not home. Out there are some amazing new systems that allow you to control the temperature in your home using your smartphone, which means that it can remain turned off most of the day and you can turn it back on just 30 minutes prior to your arrival.


A thermostat stops the compressor once the temperature in your home reaches a comfortable level and this keeps the unit from working harder thus using more energy. If you want to attain maximum savings, you should set the programmable thermostat to a higher temperature when you aren’t home and lower it to 78° Fahrenheit when you are indoors. If this sounds too hot, you should remember that the AC also removes much of the humidity from air, which means that it will feel much cooler.


  1. Regularly Clean Your AC Filters


The second most important thing you can do to lower your electricity bills is to clean the AC filters regularly.


Natural hair and dust accumulation can clog the filter even if you keep your home clean and this means that the AC unit will use more power to reach the set temperature. This can lead to considerably higher electricity bills, so clean or replace the filters every few weeks.


  1. Close All Vents in The Lower Areas of the Home


The reality is that heat rises while cool air falls. If you have a multi-story house, you may have noticed that the second story is one of the hardest places in your home to keep cool. Conversely, the basement always seems cooler.


Closing all vents in the lower areas of your home helps redirect the cold air to warmer areas and ensures more even temperature without consuming additional energy.


  1. Using Ceiling Fans to Improve Air Circulation


Ceiling fans help to offset the natural tendency for the cooler air to fall.


If you are looking to save energy by keeping the home set to a temperature that’s slightly warmer, ceiling fans can be an excellent way to keep air circulating while using less energy. They can even make you feel up to 8 degrees cooler since they keep the air in your home moving like a fresh breeze.


  1. Schedule Annual HVAC Check Ups


The unit is inspected and serviced by HVAC technicians to make sure that it operates efficiently. The technicians check for defects, remove any accumulated dirt, replace the air filters if necessary, service the unit, and address any issues that would otherwise snowball into expensive replacements and repairs. Schedule an annual check-up and the energy efficiency of your unit will be increased and the service life of the air conditioning system will be lengthened.


  1. Seal Cracks and Crevices


You don’t have to be incredibly dexterous to use a caulking gun to seal up the crevices and cracks around windows and doors. Doing this helps prevent the cold air from escaping and ensures that hot air does not leak inside. DIY weather stripping for your doors also ensures that you don’t waste money cooling the outdoors.


  1. Change Provider


You will pay more if your energy provider charges you more for it, so one of the best ways to save on HVAC costs is to change energy provider.


  1. Close the Drapes on the West and South Sides


Everyone is aware of the fact that a vehicle can get very hot when you park it in the sun, but most people are not aware that the same thing happens to a house. The reason for this is the sunlight that enters through windows and is converted to heat once inside. Keeping the drapes and blind on any west- and south-facing windows means that you never have to pay extra to get rid of the heat.


Contributed by: Heating Furnace  Experts in HVAC , Heating and Cooling…

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How To Stay Cool When You Sleep Without Using An Air Conditioner


A cool night’s rest is a good night’s rest and keeping your bedroom at the optimum temperature can really help you get a better sleep. Air conditioning is always going to be the most effective option, but if you don’t have it what do you do. We take a look.


Try The Egyptian Method

Inspired by the practices of ancient Egypt, the Egyptian method of sleeping can make it easy to stay cool on even the hottest summer nights. The basic concept is simple. All that you have to do is soak a bed sheet or a large towel in water before bed. Ring out as much water as you can. If you want, you can even put the sheet on the spin cycle in the washing machine to get rid of any excess water.

Then, when you go to bed, drape the damp towel or sheet over your body. As the water evaporates, it will help cool off your body in much the same way that sweating does. This technique works best if there is some air movement in the bedroom. Whether you crack a window or turn on a small fan, this is a great way to stay cool no matter how hot it is outside. You can also try hanging a damp towel in front of a window or wetting your clothes before you go to bed.


Close Your Curtains

People who travel to the Mediterranean from cooler parts of the world often find it strange that people keep their houses shuttered throughout the day. It isn’t that people are trying to block out the world or that they don’t like the light. Instead, it is so that their homes stay cool. Blocking out the sun can help keep the house from heating up throughout the day. The next time it is hot outside, try closing your curtains early in the day and leaving them shut all day to keep your house much cooler.


Eat Light Foods

When temperatures rise, a heavy meal can actually make you feel hotter. This has to do with your body’s metabolic process. When you eat a large meal, your body has to work harder to break it down. This requires an increase in metabolic heat.

This effect is amplified by protein. You can avoid the problem by sticking with light foods like fresh fruits and vegetables when it gets hot outside. You should also try to avoid cooking these foods whenever possible. This can keep your oven or stove burner from heating up your house even further.


Consider Sleeping In A Different Room

Bedrooms that are located on the upper level of your house or in other areas where heat and humidity accumulate are extremely difficult to cool. In these cases, you may be better off sleeping somewhere else instead. Some people recommend hanging a hammock to sleep in since it allows the air to move around all sides of your body.

A lot of newer mattresses are also a lot better for sleeping on, as they allow better air circulation. Check out these tempurpedic reviews for details.

Alternatively, you can try sleeping on the floor. Heat tends to rise. As a result, it is often much cooler at floor level. This works particularly well if you have tile or stone floors. If your house is extremely hot and muggy, you may even want to camp out in your own backyard. Sleeping outside can be a great way to escape the heat. Just be sure to protect yourself from pests like mosquitoes.


Use Your Home’s Landscaping To Your Advantage

Although this technique won’t yield results overnight, it will eventually help your house become cooler. If you plant trees or shrubs on the south side of your property, it may help keep your home cooler during the summer.

Shade trees or large shrubs with a lot of branches can help keep your house out of the hot summer sun. This, in turn, can make it much easier to maintain a comfortable temperature inside your home. Just make sure to plant deciduous trees rather than evergreens. That way, the leaves will fall off in the winter so that you can take advantage of the heat from the sun after the temperatures start to fall.


Contributed by: Heating Furnace Fix .com  experts in Heating and Air Conditioning…

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All About High-Efficiency Furnaces

If you continue to repair your oven on a regular basis, then you will be able to make more significant savings in the long run by just investing in a more efficient model.

According to the Department of Energy (DOE), heating costs drive homeowners’ energy costs up to about 30 percent. In cold climates and northern states, this percentage can be even higher! Here are some of the ways that a problematic or inefficient old furnace can cost you a lot of money and why you should abandon it for a different model:

The cost of an obsolete oven

In 1992, the US Department of Energy introduced a new rule for heating manufacturers: their furnaces could not be sold to the American public without being at least 78% efficient. If your current heater is older than that, it is probably very inefficient!

Of course, it would be ideal to have an oven installed in 2013 at the latest, with a minimum efficiency of 80%. Did you know that the models on the market today can be up to 98% effective? This means that almost all the energy it consumes is fed directly into your home in the form of heat!

Meanwhile, people keep their old forced air ovens, which can be less than 50% efficient. Also, furnaces with a permanent pilot light rather than transverse electric ignition are ineffective. You could count on burning logs for all your heat energy!

An inquiry is recommended. You can quickly look in the oven and find an installation date or at least not the model number and do the research on its age online. If you can not find a reliable manufacturing date, then consider it a sign to replace your furnace.

What makes a heater efficient?

Like all machines, furnaces require energy for there to be output. A sewing machine needs the power of turbulence with a pedal so that the needle works. Similarly, a heater involves fuel to distribute heat throughout your home.

The Annual Fuel Efficiency Rating (AFUE) measures the efficiency of the furnaces in an obvious way: it creates the ratio of the annual fuel consumption of the oven and the air outlet hot usable.

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The HVAC Systems

Air quality, health and energy efficiency

In Mexico, heating, ventilation, air conditioning and refrigeration systems (HVAC & R) are expanding rapidly. To discuss the importance of air quality, and the challenges facing the sector, Your Business Interface interviewed the graduate Marisa Jiménez, President for Mexico of the National Air Filtration Association (NAFA) and the engineer Sofanor Alarcón, President from the Monterrey chapter of the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE).

This issue is significant for companies, because “90% of our time is spent indoors, with buildings closed and little natural ventilation, so that the air quality depends increasingly on the air conditioning equipment that if they are not handled properly, they can generate health problems, absenteeism, and low productivity, “says Marisa Jiménez.

One of the significant challenges facing these systems worldwide is the reduction in energy consumption, “commercial buildings consume 40% of the energy produced on the planet, and of that, between 40 and 60% the air conditioning systems consume it; the proportion with the cost of lighting is 15 against 1, “says engineer Alarcón.

Thus, both experts agree that a fundamental aspect is a power in HVAC & R systems. Beyond the equipment, the key is incorrect operation. You have to think about air conditioning systemically, where a specific design should be developed for a particular purpose, which includes passive elements such as thermal insulation, the location of equipment, air intakes and other factors; and active features such as the selection of a technology and equipment in particular, that are adequate for the needs raised. “In Mexico, the design is given away, and it is usually not very good, that is a vice that we have to correct, because before thinking about a particular team, we have to consider the whole operation of the system as a whole, including ventilation, which it is an essential element “,

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Heat Pumps

Is The Heat Pump The Most Efficient Heating System?

In its latest report, Energy 3.0, the environmental organization Greenpeace opted for heat pumps the best option for heating from energy efficiency. These electrical devices, not very well known to most citizens, are the same system that exists inside our refrigerators or in air conditioners: they absorb the heat from one place and pump it into another. With this type of heating, it is possible to heat homes in northern Europe with much colder temperatures than here. Are they the best alternative to air conditioning? From a country like Spain? The truth is that there are many different modalities. There is ultra-efficient equipment, but others may not be as efficient or not suitable for some areas.

Until now it was understood that to generate heat in a house it was much more efficient to directly burn fuel in a domestic boiler than to produce electrical energy in a power station and transport it to an outlet in which to connect an appliance that heated the house. The reason is the energy losses that occur in power plants that run on fossil fuels (the performance of a combined cycle plant is just over 50%). However, this changes with the increase in the share of renewable energies in the electrical system (1) and with equipment such as the heat pump. According to Greenpeace, already with the current distribution of technologies of the electrical system of the country more advantageous to give heat with an electrical device such as a heat pump than with a boiler.

Is the heat pump the most efficient heating system? The answer is: it depends, “says José Porras, representative of the Association of Energy Services Companies ( ANESE ), the companies whose business lies precisely in achieving improvements in the energy efficiency of third parties (since their profits come from the savings achieved). As he explains, there is a huge variety of heat pumps, from the reversible air conditioning equipment that also heat the geothermal installations that extract the heat from the subsoil. “There are heat pump systems that do exceed the efficiency of a natural gas condensing boiler and others do not. Unfortunately, most of the ones sold right now in Spain are the bad ones. “

A first significant difference between these devices is where they will extract heat for heating (or purified water). There is quite simple equipment that will pump it from the outside air of the house. However, it must be taken into account that the performance of these devices (the COP) will change depending on the temperature outside. “It will be difficult to extract heat from frigid air that is a few degrees above zero,” says Porras. This does not matter too much in many temperate zones of Spain in which the thermometers will not go down much (and where the reversible equipment that offers both heat and cold are at the same time fascinating), but in many others where these devices can fail just at the moment when more they need.

It is also true that in other northern European countries, highly reliable heat pump systems are often used even for extreme temperatures of many degrees below zero. For this, geothermal systems that extract heat from the subsoil are better (see image). Of course, they are also much more expensive.

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Gas Fireplaces

Chimneys: Firewood, Biomass, Gas Or Bioethanol Which Model Suits Me?

Nothing brings more warmth to a room than a good fire around which to relax. Beyond its aesthetics and how to integrate it into the environment, it is worth taking into account other practical issues such as the calorific performance of the chimney chosen, its installation requirements, the most appropriate type of fuel in each case or the ease of use, cleaning, and maintenance. The good news is that there are more and more options that we can find, with better benefits and a much more efficient performance than traditional homes.

Experts consulted

False beliefs. A traditional open fire offers low performance, since a significant percentage of the heat produced escapes through the chimney along with the flue gases and combustion gases. That is why it is recommended to choose watertight models, with glass doors, to increase the calorific performance, which will always be much higher than the open models. “Without any doubt, homes must be closed,” says Antoni Massanet. The open do not exceed yields of around 50%, while the closed ones exceed 80% in firewood and more than 90% in gas and pellet systems “. The latter also allows controlling the fire with greater precision. Even, among the technological innovations that incorporate, stand out the systems of double combustion that, when using the gases generated to produce more heat, not only reduce the polluting emissions, but they save fuel.

The wood burning fireplaces are the most popular. But despite the unparalleled elegance of its flames, the wood fireplaces pose some problems, such as the price of fuel, the weight of firewood or, as Massanet say, “that it is not possible to program the temperature or the opening times.”

Vintage revival: Wood stoves return to the country house

With all the advantages of a wood model but an energy efficiency of up to 95%, biomass models, fed by pellets (small cylinders made of residual wood, sawdust and pressed chips without any additive or agglomerate). It is an entirely green fuel that is considered neutral regarding CO2 emissions into the atmosphere. Also, as this type of fuel hardly generates waste in comparison with those of firewood, these are chimneys that greatly simplify the cleaning and maintenance tasks.

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