Experts agree there is value to air duct cleaning, although there’s no scientific evidence it improves air quality.
Immediately after hiring an air duct cleaner she identified on Angie’s List, Wetzel was quite pleased together with the benefits and added benefits she experienced. She says she noticed an immediate improvement in air good quality – every person within the property suffered fewer allergies afterward – plus the complete HVAC system worked far more efficiently.
“We made use of our air conditioner significantly less inside the summer mainly because it had so much additional airflow,” she says. “And we used the heater much less through an extremely cold winter.”
Despite such anecdotal experiences, there is no scientific evidence that common residential air duct cleaning improves air top quality, in accordance with a 1997 brochure published by the Environmental Protection Agency. Laureen Burton, senior scientist inside the EPA Indoor Environments Division, says that even though the document is practically two decades old, the science hasn’t changed and also the agency stands by its recommendations.
“Checking and changing filters, keeping systems maintained, obtaining common inspections, and guaranteeing moisture doesn’t get in are much more vital,” Burton says.
Nonetheless, both EPA plus the National Air Duct Cleaners Association – which represents more than 1,000 cleaning companies nationwide – agree there is some benefit in cleaning debris from ducts, furnaces, central air conditioners and ventilation.
NADCA consulted on the EPA pamphlet and agrees with all but among its findings, according to NADCA president Michael Vinick. He says NADCA recommends home owners clean their ducts after each three to five years. “If you may have allergies or asthma, you’ll want to take into account obtaining it completed practically annually,” he says.
The EPA will not advise that air ducts be cleaned routinely, but only as necessary – which include when mold, pests or excessive debris clutter the method. In a web-based poll, 13 % of Angie’s List members said they have their ducts cleaned routinely, but 60 % do so only if critical challenges create.
When do I need to have to acquire my air ducts cleaned?
NADCA specialists argue the will need for cleaning depends on a variety of factors, including pets, smoking, current renovations, nearby weather circumstances and overall home cleanliness. Vinick says a very good contractor will offer to perform an inspection beforehand for a nominal charge, if any, to see if a cleaning is important.
NADCA’s standards dictate that a cleaning doesn’t just sweep the ducts, but addresses just about every component air passes over, which includes coils and the central program. The task includes a minimum of a couple of workers, quite a few hours and pricey gear, that is why air duct cleaning expenses $400 or more, in accordance with EPA and NADCA.
A thorough cleaning can yield long-term power savings. Bob Baker and Ross Montgomery, who study air top quality and power efficiency for the American Society of Heating, Refrigerating and Air-Conditioning Engineers, say their research shows dirty coils and blowers in commercial buildings can reduce efficiency by as significantly as 40 percent.
Vinick calls air duct cleaning an vital a part of home maintenance, akin to mopping and vacuuming. “It’s like altering the oil inside your car,” he says. “If you don’t change the oil, you are going to have an issue. When your components are loaded up with debris, the system has to perform tougher. Any time you remove that debris, you get energy consumption savings.”