Venting Water Heater Through Roof

One on the ceiling above the water heater and one that is the distance from the attic floor to the roof.

Venting water heater through roof.

In order to do this two critical measurements must be taken. Direct vent water heaters. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. Tankless water heaters provide either horizontal venting or vertical venting which is also referred to as tankless water heater venting through roof.

Illustrations of proper gas fired water heater venting using type b double wall vent pipe through a roof above or through a chimney below include details for the flue vent connector such as the requirement of a minimum vent connector upwards slope of 1 4 per foot of horizontal run. Position the vent pipe up to the bottom of the roof. Other issue is the bathroom installation which isn t permitted as well unless the water heater closet is sealed from the bathroom area air tight doors and it has a separate fresh air supply from exterior or other areas of the house that can be used for this purpose. Use a plumb bob to be sure the center of the tube at the.

Tankless water heaters use fans to blow exhaust from the unit horizontally allowing vents to terminate on the side of a house. Cut the hole with the jigsaw. If it is a natural vent type water heater you can not vent it through the side wall it has to vent above the roof. Mark the ceiling above the water heater to receive the pipe.

With the pipe in a vertical position trace around the pipe using a pencil. Go into your attic. In the attic use the plumb bob to mark the center of the hole to be cut for the roof. Traditional gas tank water heater require venting through the roof.

How to vent a gas water heater through the roof 1. This will allow your water heater to operate efficiently and effectively and most significantly it will avoid any probability of danger and therefore the risk of carbon monoxide gas poisoning. Exhaust gases are vented outdoors through a separate vent duct or through a separate chamber of the same pipe this requires a double wall vent duct. Tankless water heaters can vent through the roof or a side wall creating more flexibility and options for placement.