Madeira Beach HVAC Guide: Components of an Air Conditioner

February 22nd, 2012

Ever wondered how that amazing machine that keeps you cool in your Madeira Beach home actually works? How exactly does it use electricity to create cool air and dehumidify your home? It’s actually an ingenious bit of technology developed over a century ago using four major components and a thermostat.

How these parts are implemented may change depending on the type of air conditioner you have and how much space it’s tasked with cooling, but the following components are standard in all AC units:

  • Evaporator – There are two sides to an air conditioner – the warm side and the cool side. The Evaporator is on the cool side and is paired with a fan that blows air over the coils. The air then chills and blows into your home to keep you cool.
  • Condenser – The condenser is the device responsible with transferring heat within the air conditioner. An air conditioner doesn’t actually make anything cool – it just removes heat from one environment and places it into another. By removing heat from one set of coils and transferring it to another, it creates the cooling effect that the evaporator then uses to cool your home
  • Expansion Valve – The expansion valve is responsible for regulating how much refrigerant passes into the evaporator coils. This refrigerant immediately expands when it reaches the evaporator coil due to the pressure drop.
  • Compressor – Once the refrigerant has depressurized and turned back into a gas, it is passed to the compressor which is then tasked with converting it back into a liquid and passing it into the warm part of your air conditioner.

And of course, this entire mechanism is monitored and regulated by a thermostat which tells the air conditioner when to turn on and what level of cooling is needed by your home. The system can also be setup in one of a couple different ways. Self-contained units, like window units, house the entire mechanism in a single box, while a central air conditioner separates the two units – the hot side with the compressor and condenser are placed outside the house.

Because there are so many parts and they work in harmony to create the cool environment you want, your air conditioner needs to be carefully maintained. Regular maintenance is a must for every component. To schedule your annual maintenance checkup for your air conditioner, give Air National a call today!

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Happy President’s Day from Your Tampa Area Heating and Air Conditioning Contractor!

February 20th, 2012

Everyone at Air National wishes you a very happy President’s Day! We hope you all get a chance to take advantage of some of the great sales! It is also a great time to think about how you can make your community a better place. Lend a neighbor a helping hand or volunteer your time; everyone doing a little good can make a big difference!  Being more green is also a good way to help you community, and upgrading your home’s HVAC system can be a big part of that. If you have an older system that is using a lot of fuel, a new system will not only save you money but also help you make your home more environmentally friendly, which is good for everyone.

One of the traditions of celebrating Presidents Day is food made with cherries, in honor of George Washington, so here is a great recipe for some Cherry-Blueberry Pie:

“A fruity and fun surprise awaits you inside this double crusted cherry and blueberry pie.”

INGREDIENTS:

1 (15 ounce) package refrigerated pie

crusts

1/2 cup white sugar

2 tablespoons cornstarch

1/4 teaspoon ground cinnamon

1 (21 ounce) can cherry pie filling

1 1/2 cups frozen blueberries

1 egg white

1 teaspoon water

2 teaspoons sugar

DIRECTIONS:

1. Preheat the oven to 425 degrees F (220 degrees C).

2. Press one of the pie crusts into a 9 inch pie plate. In a large bowl, stir together 1/2 cup of sugar, cornstarch and cinnamon. Stir in the cherry pie filling and blueberries. Spoon into the pie crust. Top with the second crust, and press the edges to seal. Flute edges, or press with the tines of a fork. In a cup, whisk together the egg white and water with a fork. Brush over the top of the pie, then sprinkle with 2 teaspoons of sugar.

3. Bake for 45 to 55 minutes in the preheated oven, or until crust is golden brown. Cover the edges of the crust with aluminum foil if they appear to be getting too dark. Cool for at least 2 hours to allow the filling to set before serving.

This recipes is from allrecipes.com, visit their site for more details!

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Carollwood HVAC Tip: Seasonal Air Quality Control

February 17th, 2012

For people who suffer from seasonal allergies in Carollwood, air quality is a key concern. Allergens in the air cause brutal bouts of sneezing, runny nose, itchy eyes and even sinus headaches. Even taking refuge indoors will often not assuage these symptoms, as indoor air is often comparable to outdoor air in terms of allergens and overall quality.

That is, unless you take care to control the seasonal air quality in your Carollwood home, which can not only help ease the suffering of allergies, but also soothe asthmatics, keep out pollutants and generally promote better overall health.

How do you go about controlling the air quality in your home? To start, try these simple tips:

  1. Vacuum carpets regularly. Use a vacuum with a HEPA filter and invest in some allergen suppressing bags.
  2. Keep your vents clean. This is also a good maintenance practice to lengthen the life of your ventilation equipment.
  3. Dust hard surfaces and wash bed linens weekly.
  4. Install HEPA filters in your ventilation system, such as in air conditioners or other air handler units. Use a higher rated filter to keep out more allergens and pollutants.
  5. Invest in and use an air purifier. Again, make sure to get one with a HEPA filter.
  6. Have your home tested for radon and carbon monoxide. Have smoke, carbon monoxide and radon detectors working properly at all times.
  7. Keep doors and windows closed tight, especially during allergy season(s).

By taking charge of the air quality in your home, you also take control of a measure of your family’s health. Some of these measures require at least a bit of an investment – for example, higher rated HEPA air filters are often more expensive and need to be changed more frequently – but the benefits to your well being and that of your family are clearly well worth it. If you have any questions about how to improve your indoor air quality, give Air National a call today!

 

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Happy Valentine’s Day from Your Tampa Area Heating and Air Conditioning Contractor!

February 14th, 2012

We wish you a very happy Valentine’s Day! Valentine’s Day is the perfect time to show your appreciation to everyone who makes a difference in your life. Even a small gift, like a batch of cookies or a homemade card, can really make someone feel special. Your friends, your family, and your significant other will all have a fantastic Valentine’s Day if you take a moment to let them know how important they are to you.

Calling us for an HVAC upgrade might seem like a usual gift, but it can actually be something that benefits your whole family. An improved indoor air quality system can make air cleaner and healthier, and a new heating and air conditioning system can make your home more comfortable and save you money by lowering your utility bills. Those are improvements that every member of your family can enjoy.

If you have any questions about upgrades for your heating and air conditioning system, give Air National a call today! And to help you celebrate this sweet holiday, here is a recipe for Chocolate Cakes with Liquid Centers:

“Warm, soft and gooey chocolate cakes. Perfect for that ubiquitous chocolate fix. A good-quality bittersweet chocolate is necessary for the success of these cakes.”

INGREDIENTS:

1/2 cup butter

4 (1 ounce) squares bittersweet

chocolate

2 eggs

2 egg yolks

1/4 cup white sugar

2 teaspoons all-purpose flour

DIRECTIONS:

  1. Preheat oven to 450 degrees F (230 degrees C). Butter and flour four 4 ounce ramekins or custard cups.
  2. In the top half of a double boiler set over simmering water, heat the butter and the chocolate until chocolate is almost completely melted.
  3. Beat the eggs, egg yolks and sugar together until light colored and thick.
  4. Beat together the melted chocolate and butter. While beating, slowly pour the chocolate mixture into the egg mixture, then quickly beat in the flour and mix until just combined.
  5. Divide the batter between the four molds and bake at 450 degrees F (230 degrees C) for 6 to 7 minutes. The centers of the cakes will still be quite soft. Invert cakes on serving plates and let sit for about 15 seconds, then unmold. Serve immediately with fresh whipped cream, if desired.

For more details, visit allrecipes.com.

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Elfers Indoor Air Quality Guide: How an Electronic Air Filter Works

February 13th, 2012

For a long time, the most frequently used kind of air filter in Elfers has been the mechanical variety. This is the kind you probably think of when you hear the terms air filter, air cleaner or air purifier. They use pleated fibrous filters in-line with an air handler to trap particles in the air before circulating it back out into the home.

Many models of these work very well and have for many years. They have the added benefit of being flexible because you can put in whatever filter you need depending on what size particles you need to trap.

However, these traditional devices are not the only option. A second kind of air filter exists for trapping particles in the air– one that does not use a fibrous filter that physically snags them out of the air on the way through.

These electrostatic — or electronic — air filters work in a different way to produce a similar result. The filtering component is still a fibrous sheet, but the difference is that the fibers are made of plastic, which becomes charged when air passes through it and causes friction.

(Think something like when you rub a balloon and stick it to the wall.)

These friction-charged fibers carry an electronic charge, which attracts the ions in the air around it. These ions — and the particles that they are a part of — get trapped in the fibers and stay out of your air supply.

Electronic air filters are generally very good at trapping particles that are 1 micron in size or higher, putting them about on par with a mechanical air filter that carries a MERV rating of 12. The electrostatic method works well for many common household air pollutants, such as dust, pollen, mold and pet dander.

As with many ventilation-related decisions, the choice of what kind of indoor air quality system is right for you depends on your needs and those of your family. If you are having trouble deciding, then a consultation with Air National can be a good way to reach a decision.

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Lithia HVAC Question: What Type of Air Cleaner Is Best for People with Pets?

February 10th, 2012

Lots of people have pets in Lithia, and they are a great addition to your family. However, pet ownership has one very obvious drawback: dander. The fur, dry skin cells and other debris that pets carry around flakes off their bodies and onto your furniture and rugs. The also means they inevitably wind up in your air, recirculated through your whole house via your HVAC system.

Or at least, that’s what happens if you don’t have an air cleaner or some sort of air filtration system. This leads many pet owners to ask, “what is the best air cleaner for me?”

With all the choices in air cleaners, the choice can seem daunting. If the goal is specifically to filter out pet dander, it becomes somewhat easier.

Pet dander is quite large in size relation to other indoor air pollutants, so many air cleaners are equipped to do the job. You can use an air cleaner with a standard pleated HEPA filter, or one that uses electrostatic technology. You will want to make sure that the HEPA filter is rated to handle pet dander. A MERV rating of 8 or more is recommended.

Once you have an air cleaner installed, make sure to change or clean the air filter frequently, in accordance with manufacturer instructions. A clogged air filter won’t help eliminate pet dander from your household air and can actually degrade the operation of your HVAC system’s air handler.

In addition to installing a high quality air cleaner with a HEPA filter, you can also help reduce the amount of pet dander floating around your home by keeping the place clean. Vacuuming often and dusting hard surfaces weekly keeps pet hair and dander from being drawn up into the HVAC system, which reduces wear on the air cleaner.

If you have any questions about getting an indoor air quality system installed in your house, give Air National a call today!

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Palmetto Heating Installation Tip: How to Check if Your HVAC System Is the Right Size

February 8th, 2012

Do you ever feel that your Palmetto home just doesn’t get cool enough during the warm months or warm enough during the cold months? You have tried to adjust your thermostat to the right comfort level but it just never seems right. And on top of that, you notice that your utility bills keep going up and up. Even when you dial up the thermostat in the summer and dial it down in the winter to saving on energy usage, your bills are still about the same.

You could try adding fans and shedding clothes during the warm months or wearing sweaters and crawling under a pile of blankets in the cold months. But do you really enjoy living that way? There must be another solution as to why your heating and cooling (HVAC) system is just not keeping you comfortable – and affordable.

That air conditioning condensing unit sitting in your backyard and your furnace should be making your home as comfortable as possible. But in many cases, they are not.  That’s because whoever installed those HVAC system components didn’t do their homework on your home. The components were sized incorrectly. If a furnace or air conditioner is sized incorrectly, it usually cannot keep up with the demand for heat or cold and often puts such a burden on the equipment. As a result, regular failures and repair bills are commonplace.

And it may not be the fault of the installing HVAC contractor. Over the years your home may have undergone renovations including additions and new windows, which have increased the square footage or demand for more heating or cooling. Those renovations may not have included upgrades to your home’s HVAC system.

So how do you check for the right size? Call a professional HVAC contractor and ask for an energy audit for your home. The audit will include several key checks including a load calculation, which adds in the size of your home’s living space, number of door and windows where heat loss or gain could occur, and a check of heat loss or gain through leakage in cracks, roofs, crawlspaces, etc. An energy audit will determine what size of furnace or air conditioner is needed to meet the heating or cooling needs of your home and its own individual characteristics. Your HVAC contractor may also factor in the number of building occupants and normal usage patterns, i.e. having a home office or stay-at-home parent versus a working family where your home is occupied mostly at nights or on weekends.

All of these factors are considered when determining the equipment size. In air conditioning jargon, you will hear about tonnage of cooling capacity. An example may be a 2.5 ton air conditioning unit for a 2,000 square foot home. In furnace jargon, you will learn about Btu ratings, which are British thermal units. Most furnaces are sized in 20-25,000 Btu increments. Each is matched to the cooling or heating needs of your home. Your HVAC contractor will likely recommend using a programmable thermostat, too. That way, you can set the temperature of one or more zones in your home to when each zone is occupied.

Make sure you don’t hire someone who “guesstimates” how much cooling or heating capacity you need for your home. Find a qualified Palmetto professional who will make the correct calculations and who will qualify their recommendations. A properly sized HVAC system will equate to manageable utility bills and above average indoor comfort. You can live with that.

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Hudson Heating Repair Question: What Causes Cracks in a Heat Exchanger?

February 6th, 2012

Furnaces are designed so that the heat – and the combustion byproduct produced inside – doesn’t interact directly with the outside air. This design is to ensure you have a safer furnace in your Hudson home that won’t inadvertently affect your family’s health.

The metal piece that separates the furnace heat from the outside air stream is called the heat exchanger. The heat exchanger performs a very important function, and if it is broken or cracked, it can’t work properly.

A cracked heat exchanger is very common problem with heating systems, as well as one that should be repaired as soon as possible. But what causes a heat exchanger to crack? Here are some of the most common reasons:

  • A long period of normal use. A furnace heat exchanger naturally expands and contracts with the heat of the furnace, over and over again as the furnace is turned off and on to heat the home. Over several years, this stress can crack the metal.
  • Poor air flow, often caused by dirty or obstructed vents, can result in poor air flow through the furnace. This overworks the furnace, which can crack the heat exchanger prematurely.
  • Poor, incomplete or improper combustion can also cause a heat exchanger to crack. When the combustion process is less efficient – which can also be a result of poor air flow — your furnace’s burners have to run hotter and longer to heat your home, which means extra stress on the heat exchanger.

Essentially, if a furnace is running at less than optimal efficiency for an extended period of time, the heat exchanger is put under additional stress beyond the usual and can crack prematurely. Therefore, the best way to prevent a cracked heat exchanger is proper maintenance, particularly keeping all vents clean and unobstructed and getting an annual maintenance inspection.

If your heat exchanger does crack, do not hesitate to call Air National and get it repaired. The crack can allow potentially dangerous combustion gases to seep into your home, which can have a negative impact on your family’s health.

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Balm Heating Repair Tip: Things to Try Before Calling a Professional

February 3rd, 2012

Your Balm home’s HVAC system can seem like very daunting and complex equipment, which can be intimidating to even fully imagine, let alone try to work on by yourself. While it’s true that HVAC equipment can be complicated and needs the attention of a skilled professional more often than most homeowners would like, there are still ways for the DIY-ers out there to work on their HVAC systems before resorting to calling in the pros.

There are some common culprits when it comes to most HVAC problems and malfunctions, so if something goes awry in the operation of your equipment, there are some basic measures you can try to get things back on track.

If any of these work, you have saved the cost of the repair and get the satisfaction of a job well done:

  • Turn all switches – indoors and outdoors – off, then back on again. Do the same thing with the pertinent circuit breakers. Sometimes the system just needs a hard reset to jolt it back to life.
  • Check your thermostat. Is the temperature set where it is supposed to be? If it is too high or too low, the HVAC system will stay on too long or shut itself off too quickly.
  • Make sure your system is in the right mode for the season. It may sound obvious, but for whatever reason, sometimes things wind up in heating mode during cooling season.
  • Check your filters. Clean and/or replace them as necessary. (You do this once a month anyway, right?)
  • Inspect the vents around your home to see if any are blocked, clogged or excessively dirty. Vents that don’t properly circulate the air can cause all kinds of problems within an HVAC system.

This is by no means a comprehensive list of all the things that can go wrong with an HVAC system, but it is at least the usual suspects for the most simple and common problems that many homeowners encounter. After trying these out, if you are still experiencing difficulties, then it is probably time to call a professional to have a look at the problem.

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New Tampa HVAC Finance Option – No Credit Check and 90 Days to Pay!

February 1st, 2012

We know that your HVAC system is some of the most important equipment in your Tampa house. Living in Florida without air conditioning would be extremely uncomfortable! And heat in the winter months is just as essential. That is why we are offering a new finance option to our customers – no credit check and 90 days to pay!* When you need a new heating and cooling system, you want to get the very best. You want an energy efficient system that will last for years to come and save you money on your utility bills. Since the perfect system is not usually the bargain-basement one, this great financing offer lets you get the equipment of your dreams, even if you don’t have all the cash for it right now.

To find out how you can take advantage of this great offer, give us a call today!

*Must have good check writing history

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