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What is the difference between direct vent and gravity vent for an Empire wall furnace?
Posted by Elite Deals - Chris M. on 24 October 2013 02:47 PM

Our Answer:

Gravity vented furnaces utilize a typical type B-venting system to draft to the outdoors, which is usually ovalized on the flue outlet to allow installation in a wall cavity. It will then transition to a round vent, which will pass through the roof decking to it's termination. It is important to note that these systems use air from within the home for combustion. Direct vent furnaces will vent horizontally through the wall of the home, and as such must be installed on an outside wall. These units are completely sealed and draw their air from outside. This is a more efficient design and these units offer better heating capacity. However, the outside wall mounting location can be difficult to work around.

From Section Page: Fireplaces

ID: fireplaces

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