Reply #18: Agreed [View All]

I remember thinking of doing this once in NH, and contacting friends in the business (HVAC folks, heating contractors, etc.). Let's just say NONE of them found any validity in getting ductwork cleaned. Their response was pretty much what Chuckup said - just keep the filters clean and clean the vents (both hot air and cold air returns) as far as you can reach.

You may want to do a "Google" search on duct cleaning - I seem to recall some studies being done not too long ago that cast serious doubts on the credibity of same. Perhaps the only ones getting anything out of it are the ones cashing the check??

FWIW, remember the big deal not too long ago about radon testing? To this day people still do it, and recommend all kinds of fan systems to "solve" the problem. Well, guess what - if you want to "pass" a radon test, just open all the windows in the house for two hours before the inspector comes, and close them 5 minutes before he walks in. You'll "pass".

From a former resident of the Granite State.