Patent ID: 9103560
Filing Date: 2015-08-11
Classification: F24D,F24H

Abstract:
1. A vent system for a combustion device, comprising: an outer pipe; and an inner pipe substantially made of a nanoporous ceramic material that is permeable to water or water vapor and having a plurality of substantially parallel longitudinal sections that are longitudinally disposed within the outer pipe, the inner pipe defining a first passageway, the outer and inner pipes defining a second passageway therebetween, flue gas being conveyed by one of the first passageway or the second passageway, intake air being conveyed by one of the first passageway or the second passageway, the flue gas and intake air being conveyed by different passageways, where water or water vapor is transferred from the flue gas to the intake air through the inner pipe, the inner pipe further substantially made of a nanoporous ceramic material that is impermeable to corrosive gas components of the flue gas.