Continues to 21 12 pitch at 8 0 feet.
Water heater flue height above roof.
Water heater installed close to the roof framing would need at least 5 long vertical vent pipe single wall vent pipe requires minimum 6 of clearance to combustible materials general rule the chimney should not be outside a window or other house opening.
One on the ceiling above the water heater and one that is the distance from the attic floor to the roof.
Vent caps larger than 12 must be located at least 2 feet above the highest point and 2 feet higher than any portion of the building within a horizontal distance of 10 feet.
Flues need to be 600mm higher than the highest part of the roof within 3 metres.
In order to do this two critical measurements must be taken.
5 above the flue collar e g.
The process of burning of the gas is called combustion and it creates heat exhaust gases including highly poisonous carbon monoxide and moisture the water heater s ventilation system removes these byproducts from the home making it a critical safety feature.
11 12 to 12 12 4 0 feet above the roof surface.
Homes built on varying terrain have their own set of chimney and flue regulations.
10 4 1 3 vents installed without listed caps or mechanical exausters shall extend 2 ft above the highest point where they pass through the roof surface of a building and at least 2 ft higher than.
When installing a gas water heater building codes requires that they be ventilated out of the room through the attic and out through the roof.
Most wood stove and factory built fireplace manufacturers and local building codes will require that the chimney must extend at least 2 feet above any portion of any structure within 10 feet measured horizontally and must extend at least 3 feet above the highest point of its roof penetration.
Flues that are more than 3 metres away from the highest part of the roof need to be 1000mm above the flue penetration.
The rust oleum high temperature resistant paint that i ve used was a spray on engine paint that bakes in to a durable finish beginning at 600 degrees f.
At the hottest point in a gas water heater flue the flue vent connector right above the heater top the temperature is not likely to rise above 350 degf.
Chimney chimney flue must terminate min.
Single wall metal pipe shall extend at least 2 feet 610 mm above the highest point where it passes through a roof of a building and at least 2 feet 610 mm higher than any portion of a building within a horizontal distance of 10 feet 3048 mm.