How a Refrigerator Works

Back in the olden days, before modern refrigeration techniques, people used different methods to preserve their food. Pickling, salting, and canning were common ways to keep food for longer periods of time. But now we have a fancy piece of technology called a refrigerator which allows us to keep our food fresher, longer. In this article I will explain how a refrigerator works.

The first thing you need to know about refrigeration is the Second Law of Thermodynamics which states: “When two surfaces of different temperatures come in contact with each other, the surface that is at higher temperature cools and the surface at lower temperature warms.” Also, another principle to know is that as gas expands it gets colder in temperature. So now that you understand that, let’s move on and I’ll explain the different parts of a refrigerator and how they work.

The first part you should know about is the refrigerant; this is the part of the refrigerator that is used for cooling. In older styles of refrigerators Freon was used, now the refrigerant is usually ammonia or HFC’s. whirlpool ice magic pro As the liquid refrigerant changes its temperature and pressure it results in keeping the refrigerator cold. The refrigerant evaporates at a low temperature and that helps keep your fridge cool. Next I’ll tell you about the evaporator; basically all it does is absorb heat from inside the refrigerator. There are also heating coils that encompass the entire back of the refrigerator, they carry the refrigerant throughout the machine. The compressor is a heavy piece of metal that is powered by a motor, and its function is to raise the pressure of the refrigerant and in doing so, increasing the temperature of it. The condenser condenses the vaporized refrigerant, converts it into liquid, and lowers its temperature. The expansion valve is a thin copper wire which reduces the pressure of the refrigerant in its liquid state. Next I’ll explain the process of how a refrigerator works while it’s running.

Refrigerators have a cycle that changes the pressure, temperature, and state of matter of the refrigerant, and here is how it works. The refrigerant as a gas starts out going through the compressor, as the gas is compressed it increases in temperature and pressure, and here it becomes a heated vapor. Next, the refrigerant passes through the heating coils that surround the refrigerator, as heat is released the temperature of the refrigerant decreases due to heat loss. Now the refrigerant passes through the condenser, again reducing its temperature. The pressure though, remains the same and then the refrigerant returns again to its liquid state. As it now passes through the expansion valve, it reduces the pressure of that refrigerant, causing some of it to evaporate and expand; yet again reducing its temperature. During this evaporation the refrigerant is present in the evaporator and it absorbs the heat from the food inside the refrigerator, cooling it. Aka: The Second Law of Thermodynamics. Next the refrigerant heats up again to its gaseous state and the cycle then repeats.

Finding a Good Sports Betting Strategy to Win Your Bet

Betting in sports is fun but of course, as you are putting your money on the line, it is also important that you find a good sports betting strategy to help you win your bets. Like any other game of gambling, betting in sports outcome can be risky and in fact, it can drain your bankroll if you become carried away by it.

If you are a sports enthusiast wanting to venture into sports gambling, or if you want to add more thrill to your favorite games, you may want to find out how you can bet on sports and enjoy it as well.

Indeed, as mentioned, betting on a sports outcome can be fun but it can also be risky, thus you may want to develop a certain sports betting strategy by understanding the rules of betting as well as the risks that you are getting into.

To help you develop your sports betting strategy, here are important points that you may want to consider.

– Betting on a team that is favored to win is not always an advantage. In fact, betting on the crowd favorite may not give you more winnings than betting on the underdog team. learn about spreads. This will give you an idea on the conditions of where you are putting your bet.

– Learn the type of bet that will give you a higher chance of winning and lesser risk. fortuna bola In gambling, the highest jackpot prize is often a prize for a more difficult to win game and in sports betting, you may also find the same rules. There are different types of bets in sports and make sure that you understand each one of them. Betting on the winning team may probably be the simplest type of bet that you can put your money into but they may also have lesser winnings.

If you are betting on several teams winning at a particular order, you may find a bigger winning but of course, the possibility of guessing the right outcome may however be a little difficult, thus riskier. If you want to win more, then go for the simplest types of bets. This sports betting strategy is not just basic but it can also help you enjoy sports gambling more as well.

– Play with different sports books and bookies. This will allow you to find different lines and will give you a chance to find a line that may be in your advantage of course. You can also find a good advantage in having a local bookie as most people often bet for their home teams, thus will allow you to find more betting options.

Even if you are putting your money on sports for fun, it is always important that you have to manage your money right from the start. Good money management should always be in your sports betting strategy as this is one important part to enjoy sports gambling and not make it a means to lose everything you have.

Finding a Good Sports Betting Strategy to Win Your Bet

Betting in sports is fun but of course, as you are putting your money on the line, it is also important that you find a good sports betting strategy to help you win your bets. Like any other game of gambling, betting in sports outcome can be risky and in fact, it can drain your bankroll if you become carried away by it.

If you are a sports enthusiast wanting to venture into sports gambling, or if you want to add more thrill to your favorite games, you may want to find out how you can bet on sports and enjoy it as well.

Indeed, as mentioned, betting on a sports outcome can be fun but it can also be risky, thus you may want to develop a certain sports betting strategy by understanding the rules of betting as well as the risks that you are getting into.

To help you develop your sports betting strategy, here are important points that you may want to consider.

– Betting on a team that is favored to win is not always an advantage. In fact, betting on the crowd favorite may not give you more winnings than betting on the underdog team. learn about spreads. This will give you an idea on the conditions of where you are putting your bet.

– Learn the type of bet that will give you a higher chance of winning and lesser risk. In gambling, the highest jackpot prize is often a prize for a more difficult to win game and in sports betting, you may also find the same rules. There are different types of bets in sports and make sure that you understand each one of them. Betting on the winning team may probably be the simplest type of bet that you can put your money into but they may also have lesser winnings.

If you are betting on several teams winning at a particular order, you may find a bigger winning but of course, the possibility of guessing the right outcome may however be a little difficult, thus riskier. If you want to win more, then go for the simplest types of bets. This sports betting strategy is not just basic but it can also help you enjoy sports gambling more as well.

– Play with different sports books and bookies. This will allow you to find different lines and will give you a chance to find a line that may be in your advantage of course. fortuna bola You can also find a good advantage in having a local bookie as most people often bet for their home teams, thus will allow you to find more betting options.

Even if you are putting your money on sports for fun, it is always important that you have to manage your money right from the start. Good money management should always be in your sports betting strategy as this is one important part to enjoy sports gambling and not make it a means to lose everything you have.

สล็อตออนไลน์ปฏิวัติโลกสล็อตได้อย่างไร

ไม่เกินห้าปีที่ผ่านมาวิธีเดียวที่คนสามารถเล่นสล็อตได้คือการขึ้นรถและขับรถไปที่คาสิโน แน่นอนว่าอาจมีเครื่องสล็อตแมชชีนในบาร์ริมถนน แต่แน่นอนว่าคุณไม่สามารถหาตัวเลือกที่คุณสามารถหาได้ในคาสิโน และสำหรับผู้เล่นสล็อตจริง ๆ มันคือทั้งหมดที่เกี่ยวกับการเลือกและความหลากหลาย แต่สำหรับคนจำนวนมาก วิธีเดียวที่จะไปที่คาสิโนคือการขับรถเป็นเวลาหลายชั่วโมง ไม่ใช่ว่าทุกเมืองจะมีคาสิโน และในบางพื้นที่ไม่อนุญาตให้มีเครื่องสล็อตแมชชีนในที่อื่น

เมื่ออินเทอร์เน็ตเข้ามาเป็นที่ชัดเจนสำหรับพวกเราทุกคนที่เล่นสล็อตว่าความสามารถในการใช้มันเพื่อจัดหาสล็อตให้กับผู้คนที่บ้านจะเกิดขึ้นอย่างแน่นอนในที่สุด มันไม่สามารถเกิดขึ้นได้เร็วพอ โชคดีที่ไม่นานก่อนที่คาสิโนออนไลน์แห่งแรกจะเริ่มปรากฏขึ้น และแฟน ๆ สล็อตก็สามารถหมุนวงล้อได้ตรงหน้าคอมพิวเตอร์ของพวกเขา

การปฏิวัติสล็อตออนไลน์นี้ได้เปลี่ยนโลกของสล็อตด้วยวิธีสำคัญสองสามประการ ประการแรก ผู้คนประหยัดเงินเป็นจำนวนมาก ไม่ต้องขึ้นรถและขับรถไปที่คาสิโนหมายความว่าผู้เล่นสล็อตไม่ต้องเสียเงินซื้อน้ำมัน ผู้เล่นไม่ต้องเสียเงินไปกับอาหารคาสิโน เงินสดที่ผู้เล่นสล็อตสามารถประหยัดได้จากการขับรถและการใช้จ่ายด้านอาหารในร้านอาหารก็พร้อมสำหรับการลงทุนซ้ำในวงล้อ ซึ่งหมายความว่าสามารถเล่นได้นานขึ้น และการเล่นนานขึ้นหมายถึงโอกาสในการชนะมากขึ้น

อีกสิ่งหนึ่งที่เปลี่ยนไปคือตอนนี้ผู้เล่นสามารถลองเล่นสล็อตได้หลายประเภทในช่วงเวลาที่สั้นลง สิ่งนี้ทำให้ผู้เล่นสล็อตมีโอกาสพัฒนาทักษะสล็อตของพวกเขาในเครื่องที่หลากหลายซึ่งในที่สุดก็นำไปสู่การชนะที่มากขึ้น

สิ่งสำคัญที่สุดคือสล็อตออนไลน์ให้โอกาสผู้เล่นสล็อตได้เล่นมากขึ้นและพัฒนาทักษะของพวกเขา ซึ่งนำไปสู่การชนะที่มากขึ้น วันนี้ ผู้เล่นสล็อตออนไลน์ชนะบ่อยขึ้นและชนะรางวัลใหญ่อย่างต่อเนื่อง ความสามารถในการเล่นทุกที่ทุกเวลาและในบ้านของคุณเองก็เป็นข้อได้เปรียบของสล็อตออนไลน์ที่เปลี่ยนโลกของสล็อตอย่างแท้จริง ไม่ใช่ผู้เล่นสล็อตทุกคนที่จะเพลิดเพลินไปกับบรรยากาศของคาสิโน ใช่มันน่าตื่นเต้น แต่ถ้าคุณชอบเล่นสล็อตจำนวนมาก การใช้เวลาทั้งหมดเหล่านั้นในคาสิโนอาจทำให้เครียดเล็กน้อย การเล่นสล็อตออนไลน์อย่างสะดวกสบายในบ้านของคุณหมายความว่าคุณสามารถมุ่งเน้นที่การพัฒนาทักษะของคุณมากขึ้น สล็อตออนไลน์หมายถึงการชนะที่มากขึ้นสำหรับผู้เล่นที่มากขึ้นและนั่นก็เป็นสิ่งที่ดี เว็บสล็อตใหม่ล่าสุด

From Ancient to Modern Era of Casino Games

Casinos online are in many ways considered to be the most advantageous medium to gamble for some real money. It is one medium which offers you the enjoyment of a variety of traditional and modern casino games right from your home computer. Other than gaming excitement, online casinos also bring you the complete knowledge of different games.

Online casinos- learn and play

Presently, casinos online form to be the right place where you can easily train yourself to play your favorite games. This is the place where you can refine your gambling skills rather than playing. While playing online, you get to compete with professional as well as amateurs players. Most of these gaming competitions boost you to learn and prepare yourself for future matches as well.

Online casinos- Means to play at your own convenience:

Casino goers from all over the world prefer online casino as it is the most convenient medium that saves a lot of time. Take for instance, you like to play at a city casino but do you think that it is always possible for you to plan some extra time out of your busy schedule. In most cases, driving to a faraway casino emerge as a major problem for most casino lovers. Apart from these, if you want to play late during night time, you can only try any internet casino as these sites are accessible throughout the day and even at night as well. Besides, there are some other common problems associated to land based casino gambling.

Try out your game of choice  satta

With the presence of casinos online, you can just play any game of your own choice at any time. Similar to the real life casinos, these online casino sites offer you the gaming excitement right from your own computer. Making it much easier for you, these web based casino sites bring you the exact games that you may had played earlier at a live casino in your own city.

Th fastest growing online casinos offer you a large collection of different games. These include games like slots, poker, blackjack, roulette, craps, keno and much more. With advanced technical features, you can enjoy these available games right from your own home.

Online casino and live casino-Whats the main difference?

The main difference between an online casino and a live casino is the component of enjoying gaming live but even there is something that lacks behind. When you play online, you’re supposed to bet against some other players. However, this scenario can change as well. It is true that betting against other players from all over the world are common in casinos online but it is not at all unreal that gamers also have the option of playing against the computer. This is what that brings you an accurate and real gaming experience.

Another advantage that differentiates land based casinos from that of the virtual online casino sites is that players get a lot of bonuses from the latter. Casinos online Bonus form to be the right way to add to your own bankroll. The bonus system is prevalent only in the internet casinos so you should try to make the best out of it.

Types of Casino Slot Machines – Jackpot Slot Machines

Many of people go to the casino to play the slot machines but most of them do not really know if they are going to win. This is certainly not a big deal though since practically most of those who play the casino slots just play for fun. However, there are also some who would really want to win. After all, what is the point of playing if you are not going to win at all? As such, one of the most important questions to ask is how to win at slots. Moreover, can players learn how to win at slots? judi online

Although, many believe that winning in casino slots is associated with luck, there are time tested techniques that have been proven with some slot machines. The casino slot is basically a game of chance, whether it is land-based or online. Fortunately, the chances for winning can actually be increases with a few main points that every player should keep in mind. More than anything else, you should remember that the primary goal of playing the slot machines is to have fun. This thought alone should already keep you going with a positive vibe. Winning will basically just fall into place naturally. judi slot online

On the other hand, winning at slots is not always permanent. Since it is basically a game of chance, there are some instances where you’ll spin and lose. Nevertheless, there are some winning slot tips that are definitely smart ways to play the game.

First and foremost, you need to limit your budget. Knowing when to stop is probably the most effective way to avoid losing. Although everyone wants to win, everyone should also learn how to stop and when to stop. This is most applicable if the odds are against you. Staying on a limited budget allows you to be in control most especially if it is not your best day.

Second, you need o choose the right casino. Not all casinos are for everyone, such that you should determine which one is for you. Moreover, every casino has a predetermined payout rate and you should figure out which payout is the most promising. Practically if you want to cash in big amounts of money, you should choose the casino that offers the best payout rate.

Third, choose a strategy and stick to it. Although there can be a lot of strategies that can be applied in casino slots, it is advisable to choose one particular strategy and stick to it for the rest of the games. It is very hard to determine if the strategy is working or not if you keep changing from one strategy to another. Thus, if you want one to work, you should stick to it till the last game.

Finally, you should use your gut feeling. Contrary to the saying that feelings are nothing more than feelings; sometimes there is actually nothing better than feeling. In playing casino slots, you need to feel the game. In some cases, people feel new slots are better for them; in other cases, people wait for online slot tournaments to win extra prizes. Whatever the case is, sometimes you’ll just have to trust how you feel. If you feel lucky today, don’t ignore it. After all, you might just have felt right.

Earn Money Playing Slots…or not

The revolution in the world of gambling happened awhile ago when first online casinos started to appear on the Internet in 1996-1997. Almost immediately, online casinos attracted a lot of attention from both public and mass media. It was something new, something different, and so tempting to try for everybody who had access to the Internet. In the end online casino gambling proved to be so convenient, so secure and so advantageous entertainment for millions of people that it has become one of the fastest growing sectors of Internet commerce.

These days you will find thousands of online gambling sites on the Internet with more being opened every month. The most visible difference between online and land based casinos is that online players can play their favorite casino games on the computer in the safe and familiar environment of their home. All online casinos provide customers with detailed information on the site, and a quick guide on how to play at the casino. Some online casinos will offer articles on various game strategies, and detailed information about rules of the games, so novice players can feel at ease while getting themselves familiar with the gambling parlor, its rules and policies. At land based casinos beginner players frequently feel intimidated by the noisy and busy environment, numerous service personnel and gate security guards. They often feel confused, intimidated and lost in the vast building space, being unable to enjoy the gaming process and to concentrate on the game itself. Online casinos allow players to practice, to hone their gaming skills and to slowly adapt to the new environment at their own pace. Most online casinos allow you free play tries so you can find out for yourself if this casino is what you are looking for. You can even play for real money without the risk to lose your savings by using no deposit bonuses offered by some online casinos as incentives for new players. 토토사이트

Another advantage of online casinos may not be so visible, but it is a very important one. The odds of winning a game at online casinos are usually slightly higher, than at land based casinos. Due to lower maintenance costs for online casinos, they have been able to operate with fewer expenses 24 hours a day, without any days-off. According to the Casino Journal Magazine, the average payout for land based casinos is around 89%, which means that out of every dollar wagered at the casino, 89 cents are paid out to winning customers. At the same time, it is not rare to see payouts reaching 96-98% for online casinos, which means more payouts to playing customers!

Another feature which makes online casinos so attractive is promotional bonuses and no deposit credits available at many of them. Using these incentives wisely, you can play games and have fun with the casino money thus saving some of your own.

Be aware that besides reputable casinos with good service record there are a few online gambling parlors which have stained their reputation by dishonest practices, bad customer service, and slow payouts. You will be asked for your personal information before you are allowed to play online, and you want to make sure that your personal data is protected by the casino. Therefore, it is very important first to read online independent gambling guides to casinos to find out the players’ favorites, trusted and well-known casino sites. Secondly, read carefully the casino’s rules and policies. Third, try the casino for free before you start wagering your own money. Fourth, make sure that the laws and regulations in your area allow online gambling. Do not break the law!

High Roller Slot Machines

Among various methods of gambling, online casino gambling has become a trend lately. These online casinos are known by several names such as Internet casino, virtual casino etc. The concept of online casino is the same as that of land based casinos. The main advantage of online casino gambling over traditional land based gambling is that it can be done at any hour from any corner of the world. Online casinos give enormous opportunities to gamers to play and earn huge amount of profits. Most of the casinos offer high payback percentages and that is the most lucrative aspect of online casinos.

There are a couple of casinos that make tall promises in terms of unbelievably high payback percentages in regard to slot machine games like poker. There are also a few casinos that use a well programmed random number generator. In such casinos, table games usually have a preset house edge. The payout percentage is fixed and is decided according to rules of the game.

Online casinos can be broadly classified into three categories namely web based online casino, live based casino and lastly download based online casino. Web based casinos allow gamers to play their favourite games without even downloading the specialised software. Games are played either through HTML interface or browser plugins such as Macromedia Shockwave and Macromedia Flash. Download-based online casinos, on the other hand, have a mandatory requirement to download the software. In fact, you cannot start playing unless and until you download this software. Live casinos provide live gaming environment to its players that makes the game more enjoyable. เว็บแทงบอลออนไลน์

Gamers playing at online casinos usually never leave the casino without earning profits. Reward can be in cash or kind. Every time, it is not necessary that you will get handsome cash. Sometimes, you don’t get cash at all but you get an opportunity to win exciting jackpots and several kinds of bonuses. There are bonuses on new sign-ups. Most of the online casinos require you to pay a certain amount before allowing you to try your luck in online casino gambling.

There are some online gambling casinos that provide its gamers with cash back bonus in which you get back a specific portion of the total amount you lost in the game. Online gaming offers an average gamer numerous opportunities to multiply his/her income by several times. There are lots of lucrative casino bonuses that include instant cash bonus, sign up bonus, no deposit casino bonus and many more. The best part about online casino gambling is that without investing even a single penny, you can become rich overnight. There are many casinos that allow you to play for free. In fact, for opening account, the casino gives free bonus; that is more than what one could hope for. Monthly bonuses have also become a part of strategy of most of the online casinos to entice visitors. But that is an added advantage. So, who wouldn’t mind receiving a certain amount of money every month?

What most of the gamblers do is they don’t make any investment to play games at online casino. They simply use the bonus amount to gamble and win further prizes. So many gamblers have become millionaires within a short span of time. All this has been possible through online gambling at casino. To conclude, online casino gambling is believed to be one of the quickest and most lucrative means of earning money.

“Bookie Bonus Buster” is a well known E-book on betting exchange. In my e book, you’ll find everything from knowledge bank to graphics to strategies. My aim is to give you a ready made thing that you need to just hold in your hands and start reaping its benefits. There is comprehensive material on how to strategically place bets and back the team to win. So, all you people out there, subscribe to our book and effectively perform the task of bet backing.

Winning Against Online Slot Machines

There is nothing quite like the excitement and thrill of stepping into the Best Casino Gambling Hangout. The flashing lights, the sounds of slots rolling, and the laughter and shrill squeals of delight when someone scores big.

These are just a few reasons why more and more Casino and Gambling Facilities are opening their doors each and every year. Not only on land, but also Internet Casino Gambling sites as well. It seems that every week a dozen or more Online Casino Gambling sites light up our computer screens. The quality of these online casinos is also growing more and more superior as technology advances along with the love and passion of players.

Many online casinos even offer the same thrills and atmosphere that you can find in a busy land casino. However, online casinos offer you the ease and pleasure of playing from the comfort and security of your own home. This allows you to create your own comfort. In fact, you can play while laying bed or sitting at your desk in your boxers.

Regardless of whether you are playing on land or from home there is now no doubt that the Casino Cash Cow is on the rise. In fact, there are hundreds of individuals all over the world who are raking in a wealthy living from simply playing online casino games for high payouts.

What exactly is a Casino Cash Cow? A Casino Cash Cow is an online casino that offers high payouts. These high payouts in some cases match or can even exceed the payouts that land casinos offer. Many online casinos network with other online casinos in order to pull pots to offer huge payouts to their members and visitors. They pull their money and have weekly or monthly events wherein you can see the full effects of a Casino Cash Cow in action. เว็บคาสิโนออนไลน์

Smaller online casinos that only cater to specific games such as general slots and are not affiliated with other online casinos or major business partners don’t usually offer such high payouts. This is why it is important for you to do your research before becoming a member of any online casino. You will want to make sure that if you are paying a membership fee that you are signing up for a casino with high payouts and not a simple “backyard” casino with low to moderate payouts.

The Casino Gambling Information from Casino Cash Cow is what keeps members coming back, and keeps members from bouncing from one online casino to another. This is why so many online casinos have pulled their resources together in order to offer these large payout events on a regular basis. Working together they can pull in hundreds of thousands of dollars to award their members for simply playing on their sites.

Simply speaking, high payouts are what give any Online Casino staying power. The more money they are putting out and offering in pots and winnings to Casino Gambling Pros will result in their business making more money. You can always tell if an online casino is worth your money by looking at the extend of their payouts and bonuses. Find your big payout casino and stick with it. Don’t mess with small payouts and rewards when you can find a single high payout casino and become a millionaire over night.

Reasons Why You Should Buy Haier Portable Air Conditioners

Is your electric bill being forced up by your old air conditioner? Replacing your air conditioner with a new unit may be a good way to save home energy. However, if you do not approach this replacement properly, the high cost may not provide the gain you expect. Here is what you need to know BEFORE buying a new air conditioner.

Have you done as much as possible to reduce the need for cooling? The greatest energy savings come from the air conditioner being off. It is more cost effective to reduce air infiltration, improve insulation, reduce solar gain, and reduce internal heat generation. Solar gain is the heat directly from sunlight coming in through your windows. All of the above actions reduce the amount of time your air conditioner is operating. By the way, infiltration and insulation improvements also reduce heating costs.

Hire a cooling service company that will work with you. This is a major expense; the contractor should be willing to discuss all options available including complete costs and warranties. The warranty is very important. Ask the contractor to guarantee their work in addition to manufacturer’s warranty. Most problems come from improper installation or a manufacturer’s defect which shows in the first year. The contractor should be willing to fix any problem at no additional cost. The contractor should be able to perform or assist in the items below. There may be an additional fee, but is usually worth the extra cost.

Inspect your ductwork. Request your cooling service company to inspect your ductwork. The entire supply and return paths should be inspected. Air leaking from ductwork makes it difficult to deliver conditioned air to all of the desired rooms. Leaks to the attic or crawl space waste energy; even leaks into conditioned areas can waste energy. This is because rooms far from the central unit can be uncomfortable if there is insufficient air. This situation results in the thermostat being adjusted for these far rooms. Other rooms are overcooled or overheated, wasting energy. godrej 1 ton 3 star inverter split ac

A little known fact is that most restriction in airflow is from the turns and transitions in the duct. A qualified contractor can spot duct fittings that unnecessarily restrict air flow. Even if you do not buy a new air conditioner, improvements in your air distribution can have a major impact on reducing your energy bill.

Which SEER should you select? The Seasonal Energy Efficiency Rating is the way central air conditioning systems are rated for energy efficiency. It is the seasonal energy output in Btu divided by the seasonal energy consumed in watt-hours. A SEER of 13 means for every watt-hour you pay for you get 13 Btu of cooling. Since January 2006 condensing units must be made with at least a SEER 13; for a new air conditioner your choices start at SEER 13. Major manufacturers offer products with SEER values over 20. Of course the higher the SEER, then the higher the cost. Request your contractor to provide a cost for each offered SEER.

Request a heating/cooling load calculation. The Air Conditioning Contractors of America (ACCA) have developed a code accepted procedure for calculating heating and cooling requirements (load) for your home; it is called Manual J. This calculation is needed to determine the size of your air conditioner. This analysis should be performed after any energy improvements discussed in the first item.

Do not just replace with same size. The old unit may have been oversized or your energy saving actions may make your current size to large. An oversized unit will start and stop more often. This is inefficient and decreases the life of your unit.