Expert: James Ball - 3/28/2009

Question
 James,
  I have a wood burning furnace in my basement.  It is hooked up to a masonry chimney that has a flexible liner and is capped.  Both the liner and cap were installed to allow venting of a gas water heater.  I get what seems to be an excessive amount of creosote build up.  I am wondering if the liner/cap combination is the main contributor to this problem.

Answer
Hello Mark, you say this liner is venting a gas hot water heater? then there should not be any creosote building up in it?
I would have a local Certified Chimney Sweep (www.csia.org, there you can look up by zip code to find one near you) take a first hand look at what you have they should be able to help.
James