Rotary Brush Systems Comparison
Read This If You Are Considering a Rotary Brush-Type System
Thinking about adding duct cleaning to the services your business offers, or starting a new business? Confused by the types of equipment and methods available? Source removal duct cleaning is the only method recognized nationally as a duct-cleaning standard, and the generally accepted industry practice for more than 50 years.
On residential and small commercial jobs, this means placing an entire supply network or return network of the air conveyance system under negative pressure.
The relatively small number of duct cleaning companies in business between the 1950s until about 1990 mostly used truck-mounted vacuums & compressors for source removal cleaning to place the ductwork under negative pressure and operate high-velocity compressed air tools. Portable technology has dominated the industry since 1990 when Abatement Technologies first introduced this effective and more economical alternative to truck mounts. Several of the Abatement equipment packages include a rotary brush system or a Power Whip system that can be connected to the portable compressor for agitation of caked-on surface debris.
Another option available for residential duct cleaning companies is smaller-capacity vacuums, which look similar to a large, upright shop-type vacuum. Instead of power vacuums and compressors, these units use a 4-inch to 6-inch diameter rotary brush attached to the end of the hose to break contaminants loose. The brushes resemble those used on little shoe-shining machines seen in catalogues or in men’s rooms.
Unlike HEPA-AIRE equipment or truck mounts, rotary brush/shop vacuum systems do not have the ability to place the duct system under negative pressure, as required by nationally recognized standard-setting organizations.Keep Reading