The tee fitting located at the end of the pri mary trunk in this system performs the same function as the reduction in the reducing trunk system each secondary trunk has a cross sectional area that is smaller than that of the.
Floor joist and furnace trunk clearance.
Except for the first 7 feet of the supply run raise the supply run so it is directly up against the floor joists.
Round pipe can be used as a main trunk line or branch line as well as in return air situations.
Heating furnace clearance distances fire clearances working space other.
The screw is normally a phillip s head screw.
It maintains the most efficient characteristics for airflow and is common throughout the country.
Hello all i searched for an answer to this and could not find anything.
I am remodeling my basement and have a ceiling clearance issue.
Secondary trunk system see figure 7.
Use the straps to hang the trunk line along the floor joists.
The rods need to be of sufficient length to allow for proper clearances from.
The horizontal furnace may also be suspended from the joists using 3 8 all thread rods with pieces of angle iron underneath the furnace to form a hanging rack at both ends and the midpoint.
You will need a phillip s head bit to attach the straps that hold the trunk line to the joists.
Is there a minimum distance required between a heating supply duct and a stud.
Local codes require no less than 7.
Hang the trunk line.
The duct is currently between two studs about 2 3 inches away from each.
Municipalities may require a minimum of 30 clear inches in front of the furnace which can be accomplished in a small room if the door to the room opens in front of the furnace.
Master flow metal pipe is available in a master flow metal pipe is available in a variety of common lengths diameters and gauges to help make your next hvac project a success.
I am currently in the process of framing out a wall first floor which contains a forced air supply duct that runs vertically from the basement to the second floor.
Flexible duct can be installed in place of galvanized pipe in many applications if allowed by your local hvac codes.
I can t meet the 7 mark but the local authorities will give me a variance if i do the following.
This type of system has a primary trunk and two or more secondary trunks.
In short it will cost you more to install a forced air heating cooling system and you will probably not get both the supply and return turnks up in the joists.
The return air ducting to the trunk line must be run in pipe in the space as opposed to panning the bottom of the joists because of the open webs.
Menards offers a wide range of ductwork pipe and fittings to help your ductwork systems run efficiently these products are used for warm air return supply and exhaust systems.
In addition its flexibility allows for easier installation in hard to reach areas.
This is the large shaft that comes directly off the furnace or air conditioner.
