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7 Responses to “ Does Furnace Duct Work Need To Be Replaced When An Old Furnace Is Replaced With A New Furnace? ”

1. Susan G // Sep 21, 2009 at 6:02 pm

   Only if neccessary. If it is still in good shape ur fine.

2. statue // Sep 21, 2009 at 6:08 pm

   It depends on the system. If you feel a temperature difference when you go from room to room, it is not designed properly and should be replaced. Also it depends on the type of ducts you have you may want to upgrade and save money. For more info check out the ducts page at http://www.hvac-for-beginners.com

3. darl.heb // Sep 21, 2009 at 6:27 pm

   The ducts should be fine unless you’ve had some water leaks. I would advise having the ducts cleaned by a professional in case there’s any gunk built up.

4. RICH @www.hvac-for-beginners.com // Sep 21, 2009 at 6:57 pm

   As long as you are replacing the system with the same rated airflow you should not need or expect to see any changes. While you are at it go ahead and replace your filter system with a hi efficiency media type. http://yourhome.honeywell.com/Consumer/C…

5. latenttr // Sep 21, 2009 at 7:13 pm

   no duct’s don’t need changed but the should be cleaned newer furnace’s move more air so any dirt in them will be blown out of registers.

6. bob r // Sep 21, 2009 at 7:33 pm

   no but it probably wouldnt hurt to get the cleaned

7. pickles // Sep 21, 2009 at 8:14 pm

   Normally they don’t need to be replaced….cost is too high anyway. Now if they are extremely dirty inside…and can’t be cleaned…replacement is your only option. They can test the duct work to see if it leaks…and patch the leaks and even add more insulation around them if that helps.