I have a 35000btu propane direct vent wall furnace. I want to move it to another location. The new location is an exterior wall but the vent will be where I want to put a covered deck. Is there a way to vent the exaust "up" through the roof of the deck after exiting the house wall? The 1 picture shows the furnace in its current location and the other picture shows where the new location for the direct vent will be.