Water Heaters - Power vent or direct vent...
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zizanio
04-03-09, 08:38 AM
I am considering installing 3 Rheem gt199 tankless water heaters. Can someone give me any suggestions as far as power or direct vent. All comments appreciated.
plumbermandan
04-03-09, 02:58 PM
it just depends on your needs as far as which one you need.
Generally, a direct vent must be next to an outside wall or be connected to a chimney that extends 2-4 feet above roof peak (all gases and fumes from the burner will vent naturally). A power vent is used when the unit is put inside the home in a closet or on an interior wall. It must have venting to an outside wall and must have a blower fan to remove gases from the water heater so they don't back up into the house.
Generally, a direct vent must be next to an outside wall or be connected to a chimney that extends 2-4 feet above roof peak (all gases and fumes from the burner will vent naturally). A power vent is used when the unit is put inside the home in a closet or on an interior wall. It must have venting to an outside wall and must have a blower fan to remove gases from the water heater so they don't back up into the house.