Monthly Archives: March 2014

Air Filters: Change Them, Yes, but Know When and How

air filter dirty detailAir filters capture contaminants in the air toprotect HVAC equipment and household members from all kinds of nasty allergens, particles and biological contaminants. Read on to learn why, when and how to change your filter.

Why Change the Air Filter?

It may seem like an obvious question, but all too often clogged air filters cause an HVAC system malfunction that requires emergency repairs. Here are more reasons for changing your air filter regularly:

  • Clogged air filters increase energy use
  • Components of A/Cs, heat pumps, and furnaces endure more stress and wear
  • If a clogged filter is exposed to condensation, the filter becomes damp and mold growth may occur
  • Clogged filters create extreme pressure drops across the air handler/blower, which can quickly lead to system malfunction or failure
  • A clogged filter isn’t good for indoor air quality


When Should I Change the Filter, and How?

The frequency which air filters should be changed typically depends on the presence of indoor contaminants, outdoor contaminants and how often the HVAC systems operate.

  • Indoor factors: Generally speaking, a filter should be changed once every three months. However, the filter should be changed monthly in large households, households with pets, households with smokers and/or occupants with respiratory issues.
  • Outdoor factors: Is there construction nearby? Do you have a large garden? Is it pollen season? Keep in mind that the debris you see collecting on cars and outdoor objects may be collecting inside your home.
  • HVAC operation: During the cooling months, or any time the HVAC system is operating daily, the filter should be checked on a monthly basis. If you use the same type of filter each time, you’ll get a feel for when to change it based on HVAC usage.


Installation Tips

Measure the filter slot or old filter so that you select the correct size. Filters should fit snugly with no gaps around the perimeter. Filters with gaskets are excellent, and tend to be of higher quality.

Contact Keith Air Conditioning in Baldwin County for more info about filters and indoor air quality.

Energy Star Guidelines for Creating a More Efficient Home

energy auditThey say the stars over Mobile Bay look so close you can reach out and grab them. When it comes to the Energy Star, however, you really can reach out and grab hold of some money-saving ideas.

The Energy Star program certifies genuinely energy efficient devices. Buying Energy Star-certified products can reduce our country’s dependence on foreign energy sources, help the environment, and save you money.

Heating and Cooling Savings

Heating and cooling your Mobile-area home contributes to about half of your home’s energy budget. Choosing extremely efficient furnaces—some condensing gas models achieve 98.5 percent annual fuel utilization efficiency (AFUE)—and central air conditioners can reduce your energy use and lower energy bills as a result.

If you have equipment that is more than a decade old, you can reap substantial savings by replacing your energy-inefficient HVAC system with professionally installed Energy Star-labeled units. Modern equipment is not only more efficient, but it is also usually smaller, which can save you money on the installation and monthly usage charge.

Dandy Ductwork

The ductwork in your Mobile-area home may have been installed perfectly many years ago. Over time, mastic comes loose, joints shift, and gaps develop. Sealing and insulating ducts improves efficiency for both heating and cooling—air can’t escape when all the joints are sealed, and insulation keeps cold air from chilling your expensively heated warm air in winter.

Get with the Energy Star Program

Install an Energy Star certified programmable thermostat for both heating and cooling needs. One for each zone in your home will help you save a chunk of cash every year.

Time for a Change

Check your furnace filter every month and replace it frequently (at least four times a year). A clogged filter prevents efficient airflow in your furnace and central air system. Moreover, clean filters improve the air quality, so everyone breathes easier.

A New Tune

Keep your furnace humming and your air conditioner cooing by having all your HVAC equipment serviced annually. Regular maintenance keeps small repair issues from turning into big headaches. For more help with selecting and installing Energy Star equipment in your Mobile-area home, contact us at Keith Air Conditioning, Inc.