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• Posted in thread: Fresh-air intake question on 11-02-2009 at 05:38 PM
  Question...why do builders still use this type of system? High efficiency furnaces have been
  around for what, 25 years? Combustion air comes in via PVC, and is exhausted via a matching
  vent pipe. No n...

• Posted in thread: Fresh-air intake question on 10-30-2009 at 09:53 PM
  Ryan, our home in Edmonton, AB Canada was built in 2003/2004 and has a near identical setup to
  yours - two 6" fresh air intakes, one to the cold air return portion and another to a
  combustion pot that...