When you are in the market for an air conditioner, such as window air conditioner, or central air conditioner, and especially split unit air conditioning systems, you will definitely want to know what kind of air conditioning refrigerant is used in your system. This in part to comply with the state regulations and in part to make sure you are not polluting the environment we all live in. We’ll first quickly review the history of air conditioner refrigerant and end by explaining why AC refrigerant 410A is dominating the marketplace today.

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The ancient Rome

The ancient history of air conditioning refrigerant takes us to Rome, where elaborate waterways or aqueducts were constructed to bring fresh water to the cities. The Romans have successfully used water as refrigerant in their homes and social places. They led cold water through an elaborate system of water ducts in the walls of their homes, chilling the place down. As you can imagine, only the wealthiest citizens could afford water air conditioning. In part because of the complicated set up and in part because water in itself is not such a great air conditioning refrigerant liquid to begin with. But the Romans didn’t know that.Have a look at tdx 20 air conditioning refrigerant for more info on this.

The modern history of air conditioning refrigerant

The modern history of air conditioning is founded on refrigerants other than water.

The quick cool

Remarkably, the modern history of air conditioning refrigerant starts with Benjamin Franklin in 1758 who, together with John Hadley used quick evaporation of alcohol and ether to cool down objects below the freezing temperature of water.

The cooling cycle

Sixty years later, Michael Faraday introduced a cycle of evaporation and compression of the ammonia liquid. Twenty years later, John Gorie used this compressor technology to create ice which was used to cool the air of his patients in a hospital in Apalachicola, Florida.

The first commercial applications

Willis Carrier of Syracuse, New York invented the first modern, electrical air conditioner. It was first designed to improve the humidity and the air temperature in a printing shop so printed material would always come out right no matter what the temperature outside. The refrigerators that were used in these first commercial air conditioners were ammonia, methyl chloride, and propane, all combustible or toxic when leaked in the air.

The first non-toxic air conditioning refrigerant, Freon

Thomas Midgley, Jr. introduced the first non-toxic chlorofluorocarbon, CFC, gas, Freon. Today, Freon is a trademark of DuPont for any CFC, Hydrogenated CFC, HCFC, or hydrofluorocarbon, HFC blend. Such blends had adopted names such as Refrigerant R-11, Refrigerant R-12, etc. referring to their molecular compositions. The most commonly used of these was a HCFC Refrigerant R-22.

Introducing R-410A, the Puron

While Freon blends were much safer to the humans than the previously used refrigerants, they were claimed in the 1990s to be harmful to the Earth’s ozone layer. The sales of new Freon-based air conditioners are stopped as of 2010, and even the recycled Freon is being gradually phased out of use by 2020. In its place, the new blend, Puron, or R-410A is introduced. While the Puron is claimed to be ozone friendly, it certainly is not friendly on the air conditioning equipment. It requires much higher pressures to operate effectively, and thus requires stronger piping in the ducts and coils of the air conditioning equipment.


Exterior Paint Ideas: When going green with your house, you might assume it is inconceivable to discover an eco-friendly method to paint the exterior of your house and other buildings. When it comes to exterior paints, you need a paint that is tough enough to stand up to the natural paints and outdoor elements often are not tough enough to use on exterior applications. So, what is the answer for the householder who wants to go green on the exterior as well as on the inside?Image result for Eco-Friendly Exterior Paint

When selecting the right exterior paint, the first factor you need to do is put your thoughts at ease relating to the paint you select. For instance, when choosing an inside paint, it is necessary to choose low-VOC paint. With outside paint, this is not as much of a problem, as the air dilutes the dangerous results of VOCs. For this reason, when you buy paint colour, you do not need to fear quite as much about VOCs as you do with inside paints. Exterior paints can be advised eco-friendly if they simply do not include toxins and heavy metals.learn about a exterior painting boynton beach 

Think about your home’s architectural structure.
When selecting the best outside paint for your house, it is also essential to think about its architectural structure. If your house is one of the classical architecture’s products then selecting colours that are too bold can make it seem out of sync. Look at your house’s historical past and think about the bodily construction before you go shopping for tubs of paint.

Painting surface: Another factor that you have to ensure before you coat your house with your desired paint is the painting surface. So, the surface that you will paint on will need to be prepped. The best exterior paint can’t work or look nice if the painting surfaced has not been prepared. To ensure that your efforts and money will be worth it, put together the surface before you apply your first coats of paint.