Water Heaters - Need advice on direct-venting

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View Full Version : Need advice on direct-venting

Missouri
12-19-07, 09:07 PM
I currently have a Rheem gas water heater, standard venting. Last year I replaced the furnace with a sealed combustion unit. The installers closed up the vent hole to the attic. I still have a vent hole in the floor to the crawl space, presumably for combustion air for the water heater, and I'd like to close it up to eliminate draft and bugs. I was thinking of putting in a direct vent water heater so I wouldn't need the vent hole. Does this make sense? By the way, the furnace and water heater are in a closet and the water heater is next to the wall.

594tough
12-20-07, 04:54 PM
That vent hole in the floor probably is not enough for a new WH, and code requires air inlet in the top of the closet space as well as the bottom.

Direct vent units cost a lot more.