- Nov 18, 2006
 
- 2
 
We have a home in the country that was built in the 70's.  We have a downdraft from our fireplace.  We need to extend our 9 inch ID Heatilator chimney pipe by about 2-3 feet.  The problem as you probably already have guessed, we can't find any 9 inch ID double wall chimney pipe. I called Heatilator and they said to bad, so sad.  Is there anyway we can resolve this problem without spending 1800.00 dollars or more to have a complete removal and replacement of our chimney liner?  The existing liner is in great shape and it extends 3 feet from our roof but it is lower than the highest peak of the house. Thank you in advance.  Merrily W