Fresh air intake for low NOx emission furnace

A furnace fresh-air intake comprising:

• an outer cover comprising:
• a pair of side panels disposed in a spaced generally-parallel relationship;
• a top panel coupled to, and disposed generally perpendicular to, each panel of the pair of side panels;
• a bottom panel disposed generally parallel to the top panel and coupled to each panel of the pair of side panels;
• and
• a front panel coupled to, and disposed generally perpendicular to, each panel of the pair of side panels and the top panel, the front panel having a window formed therein;
• a supply line fluidly coupled to the bottom panel;
• a baffle disposed inside the outer cover and connected at a junction of the bottom panel and the front panel, the baffle extending in an angled arrangement upwardly and inwardly into the outer cover providing a barrier so as to prevent infiltration of moisture into the supply line;
• and
• wherein the angled arrangement provides for an air gap formed by an upper edge of the baffle and an interior surface of the top panel of the outer cover.

A furnace assembly comprising:

• a fresh-air intake comprising:
• an outer cover, the outer cover having a front panel and a bottom panel, the front panel comprising a window formed in a face thereof;
• a supply line fluidly coupled to the outer cover;
• a baffle disposed inside the outer cover and connected at a junction of the bottom panel and the front panel, the baffle extending in an angled arrangement upwardly and inwardly into the outer cover providing a barrier so as to prevent infiltration of moisture into the supply line;
• and
• wherein the angled arrangement provides for an air gap formed by an upper edge of the baffle and an interior surface of a top panel coupled to the pair of side panels of the outer cover;
• and
• an intake manifold fluidly coupled to the supply line;
• a pre-mix burner fluidly coupled to the intake manifold;
• a burner box assembly thermally exposed to the pre-mix burner;
• a heat-exchange tube fluidly coupled to the burner box assembly;
• and
• a fan fluidly coupled to the heat-exchange tube.