by David Hollies, reprinted courtesy of ServiceMagic.com
It is important to have tightly
sealed ductwork in your house. This will prevent air leakage and
also will prevent contaminants from entering the ductwork and
circulating through the home. This is achieved by carefully air
sealing all duct seams. This also helps to balance the pressure
of airflow through the ducts.
Debris often ends up in your home's ducts through the registers. Unless removed, fine particles from the debris, which can be respiratory irritants, can circulate within the ducts and enter a room through the registers. Ducts should be cleaned and vacuumed to remove any particles that may have entered during construction or over time.
Here are answers to some common questions related to duct cleaning:
A: Ask any company who offers the treatment to explain what risks, if any, are associated with their recommended treatment. Ultimately, the choice is yours.
A: The duct cleaning companies use very specialized equipment not normally available to consumers. However, much of the dirt in ducts accumulates near the vents or registers. You can remove the vents with a screwdriver and vacuum as far as you can reach. (Many people have lost vacuum cleaning accessories in their ducts this way, so you might want to tape the vacuum cleaner accessories together before you start sticking them into the ducts!)
A: Not only will changing your filters regularly help keep your ducts and air cleaner, it also will save you money on your utility bills and extend the life of your system. Depending on conditions in your home, replace the filters every month or two.
A: The good news is that the "high-tech" filters are indeed effective at removing dirt from the air. The bad news is that they may cause your furnace to overheat because the furnace counts on a certain amount of airflow to cool itself. Less air gets through the high-tech filters. You can try one of the filters and see what happens. If the furnace keeps cutting on and off every few minutes, it is probably not getting enough air and the safety switch is cutting it off. If this happens to you, go back to your regular filters.
A: These units come in both portable and central units. Portable units can be purchased at many home centers, hardware stores and department stores. To treat the entire house, have a professional heating and air-conditioning company install a central unit.
-- Tips courtesy of Service Magic