What the ENERGY STAR Label Means for Your Air Conditioning

Friday, June 27th, 2014

Summer is here, and that means it’s time to start looking at your options for air conditioning in Duluth, GA. If you’re comparing AC systems, you may have seen the ENERGY STAR label printed on product descriptions and packaging. But what does this mean for your air conditioning? Do you need an ENERGY STAR certified air conditioner in your home?

If you want to save on your energy bills this summer, an AC system backed with the ENERGY STAR label may be the right choice for you. Read on to discover how an ENERGY STAR product can save you money without affecting the performance you expect from your new AC.

Increased Energy Savings

The ENERGY STAR label is a government-regulated symbol that allows you to identify whether your appliances are energy efficient according to guidelines set by the U.S. Environmental Protection Agency. ENERGY STAR certified AC systems help to decrease pollutants, which not only helps to protect the environment but also allows you to save money on your monthly energy bill.

Products with this symbol must meet certain qualifications to earn the ENERGY STAR label. This label means that energy savings will increase significantly when compared to less efficient systems. While ENERGY STAR air conditioners may cost more than other systems, the savings over time can offset the initial fee.

No Need to Sacrifice Performance

If an air conditioner uses less energy, you may assume that the performance of the system suffers as a result. However, in order to earn ENERGY STAR certification, a product must meet consumer demands for system performance. As a result, your air conditioner will offer the same features and high performance you would expect from any other system while saving you money over time.

Only a technician can help your AC to remain energy efficient throughout the years. In addition to purchasing an ENERGY STAR air conditioner, we recommend professional maintenance once a year to clean and adjust the components of your AC system and to look for any potential problems that could affect energy efficiency.

Cool Air Mechanical offers ENERGY STAR air conditioning in Duluth, GA. Call now!

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Why Are Most Commercial HVAC Systems on the Roof?

Thursday, June 26th, 2014

Even people who have never run a business know that the HVAC systems of a commercial building are usually located up on the roof: they’ve seen enough action movies with shoot-outs on top of office buildings where the heroes dodge bullets by hiding behind fans and air conditioning cabinets. But not many people—including business owners—know the reason for this top-of-the-world positioning.

Rooftop units exist for a number of reasons. When you are looking for commercial HVAC installation in Kennesaw, GA, you probably will also want a packaged rooftop system. Contact Cool Air Mechanical to arrange for the installation of the right system for your company. We have years of experience providing comfort for businesses in the Greater Atlanta Area.

Rooftop Package Units

The original reason that air conditioning and heating systems moved to the roof of commercial buildings was simple expediency combined with the nature of U.S. cities and businesses in the early 20th century, when electro-mechanical air conditioning was first introduced. At the time, the only companies large and wealthy enough to need these systems were located in the downtown areas of cities, where buildings clustered close to each other. Air conditioning systems had nowhere to fit, and they couldn’t draw sufficient outdoor air for venting in tight spots down in street alleys. The roof was the most logical place to put them. Even today, when HVAC systems are affordable for most companies and businesses have headed to more spacious locales, the technology that developed to help keep them comfortable has remained adapted to rooftops.

The roof location proved advantageous in other ways. Packaged units that could house all the components in a single cabinet could remain removed from indoor spaces, which reduced noise pollution and permitted more work room. The systems were also less susceptible to damage from vandalism and other human causes. Repairs and maintenance could be done without any disruption to workflow. The extra space on the roof made it easy for new modular HVAC systems to expand.

The current high-efficiency rooftop packaged units are one of your best options for commercial HVAC installation. However, if another type of system would better suit you, trust to our trained technicians at Cool Air Mechanical to locate it and make sure it is installed right. Contact us today and let us know what you’re looking for. We also offer a variety of HVAC services in Kennesaw, GA. Just get us on the phone and we’ll answer any questions you have about your HVAC system.

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Common Noises That Indicate a Need for Air Conditioning Repair

Friday, June 20th, 2014

Part of the soundtrack of summer is the gentle hum and whir of the fans and the compressor in a central air conditioning system. Modern manufacturers design ACs to operate with as little noise as possible, and most of the time you will pay little attention to the white noise that comes from your cooling system.

But then suddenly… clank! clang! hiss! ch-chunk! Your air conditioner starts making an odd sound you haven’t heard before. You know this can’t be right, and you make the right move: you call a professional for air conditioning repair in Roswell, GA. You can reach skilled technicians to handle this service 24/7 at Cool Air Mechanical, where we proudly serve the Greater Atlanta Area.

Here are some of the more common warning noises and what they may mean for repairs:

  • Hissing: This sound like escaping gas or liquid is probably exactly that: refrigerant, in either its liquid or gaseous state, escaping from a breach in the air conditioner. This is a serious situation, since loss of refrigerant will cause the AC to begin to lose its cooling ability. Low refrigerant will also threaten to damage the compressor and cause ice to form over the indoor coils, both situations which can lead to expensive repair needs—or even a completely broken air conditioner.
  • Clicking: This is commonly heard when an AC begins to “hard start,” struggle as it tries to turn the compressor on. The clicking sound indicates a failing capacitor, the device that transmits voltage to the motors to start and/or keep them running. The capacitor needs to be replaced before it fails or creates more stress from hard starting in the AC.
  • Shrieking, grinding: These mechanical noises often mean something is wrong with the motors: loss of lubricant, layers of dust and grime, or overheating. Without attention, this will lead to a motor burning out, in which case it will need a complete replacement.
  • Striking, slapping: Should the outdoor fan suffer from damage, its bent blades will begin to strike against the casing, causing these loud noises. If not fixed soon, the dislodged blades will cause damage throughout the cabinet.

Do not open up either cabinet of your air conditioner and attempt to diagnose the source of the sounds and fix it. ACs are complex pieces of equipment that need professionals to handle their repair work. When one of these warning sounds starts to bother the peace in your home, call Cool Air Mechanical for air conditioning service in Roswell, GA. We have many years of experience and can take care of all your AC-related needs (and your heating needs in the winter as well). Give us a call today to schedule your next service appointment.

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Is a Packaged Air Conditioning Unit Better Than a Split System?

Friday, June 13th, 2014

For cooling down a home during the summer, the standard method is a “split system” central air conditioner. A split system AC uses two cabinets, one indoors and one outdoors. The indoor cabinet houses the evaporator coil and the air handler. It connects through a refrigerant line and power line to the outdoor unit, which contains the condenser coil, compressor, and fan.

There is another configuration option, one that is common for businesses, but which professionals can also install for a home: packaged air conditioning. These systems only have one cabinet, usually stored outside (they can also be placed inside, but outdoors is more common). The cabinet contains all the components: the compressor, condenser, evaporator, blower, fan, and the necessary electrical parts.

Which type of system should you have for your air conditioning installation in Lawrenceville, GA? That depends on a number of factors: neither is inherently better than the other, but for your home one of them is probably the superior choice. Contact Cool Air Mechanical to speak to our installers to find out which choice will deliver you the best cooling this summer.

Why Choose a Packaged Air Conditioner

The biggest advantage of going with a packaged AC is convenience. Repair and maintenance on these systems is a snap for professionals, since they only have to work with one cabinet and can easily locate problems and repair them, and maintenance sessions will go by fast. They also cost less to install (only one cabinet to place), and with all the components stored in one location—usually outdoors—they save space.

Why Choose a Split Air Conditioner

In general, split air conditioning systems are more efficient: packaged air conditioners cannot achieve the same high SEER that the best split ACs can. The most efficient split air conditioners can reach an astonishing 23 SEER. By comparison, packaged units have a range of 10–18 SEER. Since many homes are designed with a split system already in mind, they are often more convenient to install than a packaged air conditioner.

The Deciding Factor

When it comes to your home, which system wins out? The factor that will make the difference is your home’s layout. A newer home will probably have construction to fit with a split system because they are geared toward energy savings—and the packaged air conditioner lags behind in this regard. Older homes, however, can benefit enormously from the space-saving power of a packaged AC. Ask your installer which type of air conditioning system is best for your house.

Cool Air Mechanical has the experience and skill to pick out the ideal system for your air conditioning system in Lawrenceville, GA this summer. Whether packaged or split, the AC we install will be the right one for you—and it will be installed right as well.

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How Your Ducts Become Dirty

Thursday, June 12th, 2014

How clean are the ducts in your home? If you haven’t scheduled regular professional cleaning for them in two years or more, you might be in for an unpleasant surprise if you reach down inside one of the vents with a handheld mirror to get a view of the interior. No matter how clean a home you try to keep, your ducts will get dirty over time to the point that the dust, dirt, and other debris inside can have a negative impact on your indoor air quality and lower the performance of your heater and air conditioner, even leading to damaging them.

We’ll explain how your ducts get this way to help you understand why regular, professional duct cleaning in Marietta, GA is essential for maintaining clean air and a working HVAC system. To schedule quality ductwork cleaning, contact our air quality specialists at Cool Air Mechanical today.

How a Home’s Ductwork Becomes Dirty

Although a cleaner house will slow down how fast dust and dirt gather inside a ventilation system, no amount of cleanliness can stop the eventual build-up. The reason for this is that the ventilation system is constantly circulating the air inside your home, and any dirt and dust inside the rooms will eventually find their way into the ductwork. Since the ducts are sealed along their length to prevent the loss of air pressure, they are basically dust traps: as dirt and other particles enter the ducts, they become trapped inside with no way to escape (except to get blown back out into your air or dragged into the AC). Dust that you sweep up will fly into the air and into the return vents, joining the rest of the dust. Homes have such effective air sealing on them today to make them more energy efficient that there are few places to which the dust inside your house can escape.

You can ventilate your home with open doors and windows, but this 1) will not reach into and clean out the ducts, and 2) may bring in more foreign particles which will then become trapped in the house and circulated through the ventilation with the rest of the dust.

There is another potential threat to the interior of your ducts: mold. Mold spores can enter the ventilation system and take hold and start to grow in humid weather. If your home suffers from unusually high humidity, this can become a serious issue.

However, you have help available for all these problems: the indoor air quality experts at Cool Air Mechanical. We offer professional duct cleaning and other indoor air quality service in Marietta, GA that will remove this reservoir of dust and dirt from your home. We also remediate mold with UV germicidal lights, and offer dehumidifiers to help reduce the risk of mold growth (and increase your summer comfort). Give us a call today for cleaner ducts.

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Why Your Water Heater No Longer Produces Hot Water

Friday, June 6th, 2014

Your water heater is the unsung hero of the household, dutifully providing hot water for cooking or bathing year in and year out. When it can’t do that job anymore, you need to summon a qualified technician to treat the problem quickly. If you’re in the Atlanta, GA area and you have a troublesome water heater, you won’t have a problem finding reliable water heater repair services that can take care of it. Here’s a quick breakdown of possible reasons why your water heater no longer produces hot water.

  • Malfunctioning thermostat. A thermostat that can’t correctly read the temperature in the water heater won’t be able to activate the burners. You need to get the faulty component in the thermostat repaired, or else replace the entire thermostat.
  • Broken dip tube. The dip tube brings fresh water into your water heater, running the length of the tank to deposit the new water at the bottom. Burners under the tank heat it up, allowing it to rise to the top of the tank and be carried into your home. When the dip tube is broken or malfunctioning, it will release water into the top of the tank, intermingling with the hot water and cooling it off. You need a trained plumber to replace the faulty tube with a new one.
  • Clogged fuel line. If you have a gas-fed water heater, the problem may be that the gas isn’t reaching the heater itself. Clogged lines are not uncommon, and can be cleared up fairly quickly by a professional.
  • Safety shut-offs. In some cases, the water heater has a safety feature that automatically shuts off the burners in the event of trouble. This can take place if the pilot light goes out, if there’s a leak in the gas lines, if the burners are malfunctioning, or any of a dozen other issues. It’s beneficial because it can prevent an explosion or further damage to your unit, but the underlying problem must be corrected if you want the water heater to work again.

If you’re wondering why your water heater no longer produces hot water, then call on Cool Air Mechanical for the answers. We handle all kinds of issues related to water heaters and offer quality HVAC services in Atlanta, GA. We pride ourselves on fixing the problem the first time, every time. Give us a call today and let us show you what we can do!

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