Minimum Clearance On Water Heater Roof Vent

Table illustrations of the required space between a direct or side wall vent for a gas fired heating appliance and building windows doors corners gas meter air intakes sidewalks balconies.

Minimum clearance on water heater roof vent.

A direct vent installation only requires a 12 inch setback from the door or window. Gas appliance direct vent clearances distances from direct gas vent to building features sidewall vent direct vent direct exhaust systems for gas fired heaters water heaters other appliances. Minimum height above the roof surface 1 flat to 7 12. 1 0 foot above the roof surface 1 7 12 to 8 12.

This article series describes b vent metal chimneys used for gas fired appliances. Natural gas fireplaces gas fired furnaces boilers water heaters and wall or space heating applications. Note some modern high efficiency water heater may have pvc vents. 1 5 feet above the roof surface.

Number 2 is a vent for an exhaust fan like those found in bathrooms and laundry rooms. Roof pitch rise run in inches. Type b vents ceiling floor wall clearances b vent clearances to combustibles clearance distances for a b vent to combustible materials in floors walls ceilings attics roofs. Aluminum 012 inner wall galvanized 018 outer wall.

Minimum clearance distance requirements for the exterior vent termination of a gas fireplace heater 8. Stack vents may give off sewer gas so they should not be located within 3 feet of an operable window. Metal vents that are too close to wood or combustionable materials may cause the wood to burst into flames. Number 3 is a vent for an attic space called a roof vent or turtle vent.

If the water heater is installed above the door or window it needs 12 inches of clearance. Materials and construction round type b gas vent 3 8 and oval 4 6. Hot water is an essential part of everyday life. Distance required canada 1.

We discuss fire safety fire clearances and other gas appliance venting details for b vent chimneys. 2 0 feet above the roof surface. Direct vent gas fireplace exhaust termination item clearance distance. Single wall vent pipes cannot pass through a ceiling floor firewall or wall.

84 2 1m 3 note 5. Single wall vents should have a minimum of 6 inches of clearance and double wall sometimes called a b vent should have 1 inch minimum clearance. For gas fired water heater vents. 6 minimum clearance from single wall vent pipe or flue vent connector to any combustible material.

An exception is made for non combustible walls such as solid masonry or concrete. Table of rooftop chimney clearances for metal b vent chimneys flues. Distance required usa 2. Whenever we are installing a gas water heater building codes require that there should be a ventilator out of the room through the attic and out through the roof.

2 5 feet above the roof surface.