Principles of Geothermal Loop Systems

June 27th, 2014

The power to heat and cool your home—affordably, efficiently, and without harming the environment—lies right beneath your feet and all around your house. It’s the power of the Earth itself, which you can harness through geothermal loop systems in Louisville, KY.

A geothermal heat pump uses the ground as a medium for exchange. This separates it from an air-source heat pump, which uses the air as its medium. We’ll explain in this post how the geothermal loops in the ground can bring you heating and cooling that’s more efficient and reliable than what you receive from traditional home comfort systems.

Make a call to AccuTemp Heating and Air Conditioning to find out more about geothermal loop systems and how our skilled installers can make them work for your home.

How geothermal loops work in a ground-source heat pump

The basic principles of a geothermal heat pump are the same as that of a standard heat pump: moving heat from one place to another through the cycling of refrigerant. In heating mode, a heat pump moves heat from outside a home to the inside, and releases the heat through the process of condensation along an indoor coil. In cooling mode, a heat pump moves heat from inside a home, absorbing it along the indoor coil through evaporation, and releases it outside.

The difference between the two systems is the “outside the house” part. For a standard heat pump, an outdoor coil does the job of either releasing or absorbing heat. But with a geothermal system, there’s no outdoor coil. Instead, the refrigerant (which is water or a water/anti-freeze solution) moves into a set of loops buried in the ground at least 10 feet below the frost line. The loops either release heat into the ground or absorb it.

The advantage of using the earth for half of the cycle of heat exchange is the stable temperature found below the frost line. At 10 feet or deeper, the earth stabilizes to 55°F, and does not fluctuate due to weather conditions, whether extreme heat or cold. This gives a geothermal heat pump a reliable source for heat exchange, and it won’t struggle or lose efficiency no matter the outdoor temperature. The U.S. Department of Energy estimates that geothermal heat pumps, thanks to their ground loops, can run 3 to 6 times more efficiently than air-source heat pumps. It requires only one kilowatt-hour of electricity for a geothermal system to produce 12,000 BTUs of cooling or heating power, compared to more than twice that for a standard heat pump during a hot day. The efficiency is even greater in heating mode.

If this sounds like the energy-saving performance level you want from your home comfort system, and if you are interested in green technology with zero greenhouse gas emissions, call AccuTemp Heating and Air Conditioning today. We specialize in the installation of geothermal loop systems in Louisville, KY.

Problems Solved by Duct Sealing

June 20th, 2014

Have you noticed any of the following in your home:

  • Moldy, dusty smells emanating from the vents?
  • A drop in airflow from your air conditioner or heater?
  • Rooms that feel uncommonly warm or cold?
  • An unexplained rise on your utility bills due to your AC or heater?

If so, you may have leaks inside the ductwork connecting your HVAC system to the rooms. This ventilation system must maintain an airtight seal along its length to allow for the conditioned air sent along it to maintain air pressure. Even a small leak can cause a drop of 30% in air pressure. These breaks and leaks in ducts can lead to other problems if they do not receive proper repair work.

You can call for duct sealing in Crestwood, KY from AccuTemp Heating and Air Conditioning. Professionals need to handle the job of closing up the holes and gaps along leaky ducts—store-bought duct tape will not do the job—using a variety of sensors and sealing tools. Our experts will help restore your ducts and solve the following problems:

  • Air pressure loss: This is the main issue that duct sealing addresses. When air pressure drops inside a ventilation system, it means a loss of airflow that will cause a room to receive uneven heating and cooling. You can’t expect your air conditioner or heater to perform its job adequately with leaky ductwork.
  • Elevated utility bills: When air pressure in the ducts drops, it will force the air conditioner or heater to work harder to attempt to compensate for the loss. This will push the system to overwork and drain additional power, and you will see the effects through spikes in your energy bills.
  • Increased repair issues for the heating/cooling system: This stress from overworking will also cause more breakdowns and malfunctions in the air conditioner/heater. Debris and dust will also infiltrate the system cabinets and cause damage that will lead to expensive repair needs.
  • Drop in indoor air quality: The openings along leaky ducts will access closed-in, dusty spaces in your home, and will begin to draw in debris from them. This will cause contamination along the ventilation system that will then blow out into the air of your living spaces. Worst of all, the leaks can cause a rise in humidity that will encourage dangerous mold and mildew growth. Sealing the ducts will protect the health of your family.

If you suspect the integrity of your ductwork has been compromised, call us right away to schedule repairs and sealing work.

Our indoor air quality team and specialists in duct cleaning and duct sealing in Crestwood, KY are ready to help you deal with any troubles you have with your home’s ventilation.

3 Services Performed During Air Conditioning Maintenance

June 13th, 2014

Have you scheduled your air conditioning maintenance in Middletown, KY for the summer yet? It’s never too late to get started, and “now” is always the best time. Maintenance is necessary for your air conditioner to remain at top level of energy efficiency and cooling performance. Maintenance will also spot potential repair issues so you can have them fixed before they turn into mid-season hassles.

Our new customers are often curious to know what happens during a regular maintenance session on an AC. Here are 3 of the key services that the technicians at AccuTemp Heating and Air Conditioning provide during a maintenance visit. Give us a call today to sign up for your maintenance visit before the summer heats up any more.

Here are 3 services you can expect during AC maintenance

  • Electrical system check: Approximately 85% of repairs needed for air conditioners are electrical in nature, so technicians will make a careful investigation of the electrical system in your air conditioner. They will look for loose connections and tighten them, check on the motors and the amperage on the motor connected to the compressor, see that the capacitors are in good shape, and make sure the electrical relays are not damaged.
  • Refrigerant recharge: The refrigerant in your air conditioning system must remain at a set level at all times, or it risks dropping in cooling power and creating ice across the coils. The technician will check to see that the refrigerant in your AC is at the right level. If the charge is low, the technician will add more (making sure it’s the correct blend) so the system won’t run improperly.
  • Change the air filter and check airflow: The air filter protects the interior of an air conditioner from debris pulled in through the return vent. It will become clogged over time and needs to be changed out for a fresh filter. The technician will take care of this and then check on the airflow for the whole system to see if the fan and blower are operating correctly and the ventilation shafts aren’t leaking air.

There are many more tasks that a technician will oversee during the maintenance session: cleaning the coils, clearing the condensate drain, checking the thermostat, etc. At the end of the visit, you will have an AC in top condition and working at its most efficient. (Studies have shown that an air conditioning system that receives regular yearly maintenance will retain 95% of its efficiency during its lifetime.)

Sign up for air conditioning maintenance in Middletown, KY today at AccuTemp Heating and Air Conditioning. If anything should go wrong with your AC during the summer, remember our repair promise: “Fixed Right or It’s Free!”™

3 Ways Commercial Air Conditioning Is Different from Residential

June 6th, 2014

During a Kentucky summer, an effective air conditioning system for your business is essential, whether you run an office or retail location. Cool air from a central AC means comfort for your clients, customers, and employees… and better business for you.

It takes more to handle commercial air conditioning repair than a background in working on home ACs. There are some huge differences between the two. Here are three of the most important ones.

AccuTemp Heating and Air Conditioning has the years of experience with commercial air conditioning repair in Louisville, KY, so make us your first call when you need help restoring your business’ comfort.

1. Commercial air conditioners are modular

Residential air conditioners come as single units capable of handling a set cooling load. If a homeowner wishes to add more cooling power, he or she must replace the current unit with a larger one. Commercial systems are modular, however. This makes them easier to construct and transport, but it also allows a business owner to add onto the system to increase the amount of cooling load without needing to replace the entire system. For businesses that plan to grow, either in space or in staff, modular designs are essential.

2. Commercial air conditioning usually is designed as packaged units

Take a look at the central air conditioning for your home: it has an outdoor unit (the condenser) and an indoor unit (the evaporator). This is known as a “split system.” Commercial systems are different: they place the condenser, the evaporator, and all the other components into a single cabinet called a package unit. These package units can also be heat pumps for both heating and cooling. Package units have the advantage of making them easy to access and repair for technicians. Since most package units are located on the roof of a business, they remove a great deal of noise pollution from the workspace and do consume valuable room.

3. Commercial air conditioners are larger and more powerful

The average cooling load needed for a medium-sized residential home (one story, 3 bedrooms) is about 5 tons. By comparison, 25 tons is considered “light commercial” air conditioning. Many businesses use multiple 50-ton modular units to provide sufficient cooling for their space. Also part of the larger size for these systems is the extensive ductwork and the multiple thermostats necessary for zone control. The extent and size of commercial HVAC systems require that only technicians with special training work on them.

We have a long record of successful work on commercial HVAC systems, and will deliver the same level of quality to your business.

For the necessary air commercial conditioning repair in Louisville, KY that will restore your company’s cool interior, call the dependable team at AccuTemp Heating and Air Conditioning.

Types of Air Filters to Consider for Your Home

May 30th, 2014

Homes in the U.S. face a serious problem today with the quality of their indoor air. Because homes are designed today to maintain a strong seal against the outside heat (and from heat escaping), very little fresh air circulates during most of the year. This leads to air that is stale and filled with household contaminants such as dust, dirt, dander, fibers, and chemicals from building material and cleaners.

There are ways you can combat this in your house, however—and you don’t have to throw open your doors and windows to the elements half the day to do it. (However, it’s still a good idea to let some fresh air in now and then.) With the help of professionals in indoor air quality in Clarksville, IN, you can have special air filters installed that will clean and purify your indoor air.

How to get started? Call up AccuTemp Heating and Air Conditioning today, and we’ll talk over some of these options:

The mechanical filter

A mechanical filter uses a mat of fibers to catch and trap particles. The fibers attract pollutants to them, so even particles down to 0.3 microns will not manage to make it through the filter—this will account for around 99.7% of all the dust and debris that floats through your home. The finest mechanical filters are HEPA filters, and with their help most of the major pollutants that cause asthma and allergies will vanish from your home’s air. The filters will need regular maintenance to keep them clean, however.

The air purifier

Also known as an electronic air filter, these devices can affect the contaminants that will escape a mechanical filter; namely, gases such as smoke, formaldehyde, pesticides, carbon monoxide, etc. The electronic filter ionizes the air and then attracts particles to a plate, thus affecting pollutants down to 0.1 microns in size. They use electricity, but not enough to make a significant impact on your utility bills.

Standalone units

In addition to cleaners that are installed into your HVAC system, you can have standalone air purifiers that are sized for your home. These can be used for a single room, or designed to work for a larger set of rooms, depending on your needs. These units work well if you need to cleanse to air in a room of someone with bad allergies or asthma.

Although you can purchase some indoor air quality appliances from stores, most of them will not do a sufficient job, and they will not benefit your whole household. For this job, hire on indoor air quality experts to select and size and then install the ideal air filtration system for your home.

When you want the finest indoor air quality in Clarksville, IN, call the experienced indoor air quality team at AccuTemp Heating and Air Conditioning.

How Does Zone Air Conditioning Work?

May 23rd, 2014

The standard central air conditioning system that uses a ventilation network to distribute cooled air presents an “all or nothing” dilemma. Regardless of how many rooms in a home needs lower temperatures, all of the house receives the cooling power. If you are only spending time on one section of the house, you don’t need to cool them down. If you have rooms that only guests use, sending air conditioning to them most of the year is a waste of energy. However, there isn’t anything you can about it—

Stop right there. You can change the way you cool your home so that instead of doing it all at once, you instead have the house divided into different “zones,” each with temperature controlled separate from each other. Thanks to zone control systems installed into an HVAC system, you can control all the cooling from a central panel, or adjust the individual zones locally.

To find out how you can have zone air conditioning in Louisville, KY for your house, call the specialists at AccuTemp Heating and Air Conditioning today.

Here’s a rundown on how zone control operates.

The basics of zone control

The standard element of a zone control system is the damper. These valves go into the ductwork, each one controlling the flow to a zone. (You can decide how many zones you need; they can be as simple as one for upstairs and one for downstairs, for as many as one for every room.) The dampers can shut partially or all the way to reduce or stop airflow to a zone, which reduces the strain on the AC as well.

The dampers are each hooked to a local thermostat that allows anyone in the room to control the temperature. This is a great advantage since it means people in your home with personal comfort needs can find the right temperature for them without disturbing the comfort level of others. It also means you can adjust temperatures to fit a room’s purpose: slightly warmer for the baby’s room, cooler for a home gym or the kitchen.

Each of the individual thermostats hook up to a central control panel, located where the standard thermostat is usually placed. The control panel allows access to any of the zones and permits programming that allows the homeowner precise temperature control throughout a house.

Ready for zone control installation?

You don’t have to have zone control installed when you put in a new air conditioning. Professionals can retro-fit an existing installation system and AC to have all the zone control advantages. Speak to our Louisville, KY zone air conditioning technicians today and set up an appointment. AccuTemp Heating and Air Conditioning is glad to help you get the most comfort and savings from your heating and cooling system this year and every year after that.

3 Advantages to Geothermal Cooling

May 16th, 2014

People are sometimes surprised to learn that geothermal power can be used to cool down a home. But the heat in the earth serves as an excellent medium for a heat pump: a “ground-source” heat pump can both draw heat from out of the earth to heat up a home and remove heat to the earth to cool down a home. When you have a geothermal system installed for your house, you are making an investment for year-round comfort. You are also making an investment in some other major advantages of geothermal cooling, as we’ll look at in this post.

Not every house or property will benefit from a geothermal heat pump; the underground coils that circulate refrigerant need sufficient space to work as well as the right ground conditions. If you are thinking about having a geothermal system installed for your home, contact AccuTemp Heating and Air Conditioning.

We have specialists in geothermal cooling in Clarksville, IN who will assist you with all your needs for geothermal heat pump installation.

3 benefits of a geothermal heat pump

  1. Reliability: One of the reasons that geothermal heat pumps have become popular is that they do not depend on the variable temperature of the outside air as a medium for heat exchange, and therefore they will not suffer from drops in efficiency because of weather extremes. The temperature of the earth at the point where the coils are buried remains steady around 55°F, no matter how hot or cold the surface temperature is. A geothermal heat pump always has a ready supply of heat to draw on for the winter and a place to desposit heat during the summer.
  2. Energy savings: According to the U.S. Department of Energy, the constant temperature source available to geothermal heat pumps allows them to perform at two to three times greater the efficiency of a standard heat pump, and this means a significant drop in energy bills to cool and heat a home. Although geothermal heat pumps cost more to install than most home comfort systems, they will payback their upfront costs in 5–10 years on average.
  3. Longevity: Few home comfort systems have the immense lifespan potential of a geothermal heat pump. The indoor heat pump section will usually last around 20 years. The ground coils, however, can endure for more than 50. This enormous lifespan means you’ll have many years to receive energy savings from your geothermal heat pump long past the initial payback period.

Geothermal installation is a large task that requires specialists with extensive training and experience. To schedule an appointment to see if geothermal cooling in Clarksville, IN will work for your home, call AccuTemp Heating and Air Conditioning. We offer straightforward pricing so you will always know the cost of our services before we start work.

3 Things to Consider Before Installing a Commercial HVAC System

May 9th, 2014

Running a successful business requires juggling many tasks. When it comes to keeping your workplace comfortable for everyone there, you can give the work over to professionals who know how to handle the needs of commercial HVAC. Call AccuTemp Heating and Air Conditioning to start off your installation of commercial AC in Louisville, KY for the summer.

Before you make a choice about your new HVAC installation, however, here are three factors to consider:

1. Fuel source

One of the initial considerations for any HVAC installation, whether for a home or for a business, is the fuel source for the system. Natural gas and electricity are the most common. You should investigate into the local availability of natural gas, which is sometimes a less expensive option depending on where you live. Natural gas systems can bring up safety concerns, so make sure you consult with your installer about possible hazards before you decide to go with a gas-powered system.

2. Space

The larger commercial space you have to condition, the more space you will need for an HVAC system. The dominant type of commercial HVAC system is the rooftop unit, which is a great option for saving space inside your workspace. They are also easier for technicians to service. Depending on how much cooling and heating power you need, you may require more than one rooftop unit. However, you can also choose a central cooling and heating system if it fits better with your workspace. Installers will help you determine how best to utilize the space.

3. Sizing

This is the most important consideration of all, since you must make sure that the unit installed will have the appropriate level of heating and cooling power to condition the workspace to the level you need. If the system is under-powered, it will provide insufficient comfort. If it is over-powered, it will waste energy and short-cycle constantly. This is the pre-installation task that needs the assistance of a professional in commercial HVAC the most. The technicians will determine the heat load of your business space to narrow down the size of the system they will need to install for maximum effectiveness and efficiency.

It’s important for homeowners to have professionals install the right HVAC system to keep their families comfortable. But as a business owner, you know that keeping your employees, customers, and clients happy is essential for success… and that means professional HVAC installation is essential.

For installing commercial AC in Louisville, KY, you need look no further than AccuTemp Heating and Air Conditioning.

We have a licensed team to handle the installation necessary to keep your business a pleasant place for employees and customers. Call us today. 

Common Heat Pump Repairs in The Highlands

May 2nd, 2014

When it comes to performance, heat pumps have a different situation than air conditioners and furnaces. Unlike those two systems, which only provide one kind of comfort, heat pumps provide two, and therefore will work throughout most of the year. They take a great deal of stress because of this, and even with regular annual maintenance, a heat pump can still need the occasional repair to keep it in the best condition possible.

With summer almost here, keep a close watch on the performance of your heat pump. If you notice any possible malfunctions, call for repairs right away. You don’t want the repair issues to emerge during the summer heat.

For heating and air conditioning repairs in The Highlands, KY, make the call to AccuTemp Heating and Air Conditioning. We promise to repair your heat pump right—or the repair is free.

Some repairs your heat pump may need

  • Reversing valve replacement: The reversing valve is what distinguishes a heat pump from a standard air conditioner. The valve sits on the line where the refrigerant exits the compressor, and it controls whether the refrigerant moves first to the indoor coil or the outdoor coil. This shift in direction changes the heat pump from one mode to the other. If your heat pump will only blow out warm air when it comes on for the summer, you may need to have a failed reversing valve replaced.
  • Recharging refrigerant: Without the chemical blend known as refrigerant moving through the coils and lines of a heat pump, no heat exchange can take place, and no heating or cooling will come from the heat pump. Refrigerant does not dissipate during a heat pump’s operation, but leaks can cause the charge (the refrigerant’s level) to drop, leading to a serious plunge in the appliance’s power and possibly leading to damage to the compressor. Repair technicians can seal the leak and recharge to refrigerant to the correct level.
  • Fixing a tight or seized compressor: The compressor is the core of a heat pump. Resembling a piston engine, a compressor changes liquid refrigerant into a hot gas to start the heat exchange cycle. If the compressor starts to wear down from lack of lubrication or overheating, it can become tight and eventually seized, which will halt heat exchange. Technicians can often lubricate the compressor and start it moving again. However, should a compressor completely burn out, the whole heat pump sometimes will require replacement.

Never delay when it comes to calling for heat pump repairs. Any malfunction can become worse, and lead to a more expensive repair or even the need to replace the heat pump. Contact AccuTemp Heating and Air Conditioning for repairs in the Highlands, KY for anything that threatens your heat pump and your comfort this coming summer. Our Straight Forward Pricing Guide™ will assure you upfront that you know the price of our services before we get to work.

Spring Is the Best Time to Schedule Duct Cleaning

April 30th, 2014

The term “spring cleaning” exists because the season is a good one for scheduling many different cleaning and maintenance tasks for your household. The onset of warm—but not hot—weather after winter lets you open up your house for ventilation and the cleaning out of all the dust that collected over the winter months.

Your home’s ventilation system also needs spring cleaning. Contact a professional duct cleaning service in Clarksville, IN to schedule a thorough cleaning of the ductwork in your house this season. You’ll benefit in many ways from having cleaner ducts: lower HVAC bills, fewer repairs, a cleaner house, and higher indoor air quality.

Call AccuTemp Heating and Air Conditioning, where we have duct cleaning specialists who can take care of this important spring task. We take pride in the service we provide to better your indoor air quality and your HVAC system’s performance.

Benefits of spring cleaning in your ductwork

  • Lower utility bills: The dust that gathers inside the ventilation system over a year creates a layer along the interior thick enough to place resistance on airflow. This will force your air conditioner during the summer to work harder, and the stress will cause an increase on your energy bills. Clean ducts make the AC’s job much easier, and you’ll see this reflected on your bills.
  • Fewer HVAC system repairs: Congested ducts increase the chance of contamination entering the cabinet of your air conditioner. Dust, dirt, and debris that gets inside an AC will cause motors to run down faster and block the evaporator coil from absorbing heat. Without regular duct cleaning, you will probably end up spending more on air conditioning repairs to keep the system running.
  • Cleaner home: If you find that you need to open up your home routinely to get rid of a build-up of dust, then your ducts are probably contributing to sending the dust around your home. Professional duct cleaning removes one of the major reservoirs for dust in your home—and your home’s cleanliness will improve.
  • Improved indoor air quality: On average, a six-room house will accumulate 40 lbs. of dust and other airborne pollutants over only a year. The HVAC system will circulate this dust through your home and into your air, dramatically reducing your air quality and leading to breathing problems; skin, eye, and nose-irritation; allergic symptoms; and trouble sleeping. People with allergies will experience even worse conditions. You’ll make a significant improvement in your indoor air quality with regular duct cleaning.

You need to hire professionals with extensive ventilation system cleaning to do this job: it requires special equipment and training to perform it correctly.

You can find the right specialists at AccuTemp Heating and Air Conditioning. Call us today to arrange for your spring duct cleaning in Clarksville, IN.