Can you use flexible duct for range vent?
Can you use flexible duct for range vent?
Can flexible duct be used for a range hood? No. Avoid flexible duct for your range hood, regardless of the CFM.
How far can you run duct for range hood?
30′
How far can you vent a range hood? Your range hood duct should not exceed 30′ for a straight run, 25′ for a run with one elbow, and 20′ for a run with two elbows. The shorter the duct, the better. If your ductwork is too long, your kitchen air may not reach the outside.
How many CFM do I need for my range?
To power your range hood, you need at least 100 CFM for every 10,000 BTUs of your stovetop. For example, a 100,000 BTU stove needs at least a 1000 CFM range hood. For electric stoves, multiply the stove width by 10. So, for a 42” electric stove you want a range hood with at least 420 CFM.
What size is a range hood duct?
The minimum allowed duct size is 3¼” x 10″, or 6″ diameter for round ducts. Never use a plastic duct or one that is smaller than the size specified for the hood as this will directly affect the hood’s performance. High performance hoods require larger, up to 10″ diameter ducts.
What size duct is needed for 1000 cfm?
Equivalent diameter for rectangular and circular ducts – air flows between 100 – 50000 cfm
| Air flow – q – (Cubic Feet per Minute, cfm) (m3/s) | Rectangular Duct Sizes (inches) (mm) x (mm) |
|---|---|
| 1000 (0.45) | 10 x 14 12 x 12 |
| 1300 (0.59) | 12 x 14 |
| 1400 (0.63) | 12 x 15 |
| 1700 (0.77) | 10 x 22 14 x 15 |
How many CFM is an 8 inch duct?
CFM Sizing Chart For Metal Round Ducts (50-2,000 CFM)
| Duct Size (Inches) | Metal Duct Airflow (CFM) |
|---|---|
| 6 inches | 85 CFM |
| 7 inches | 125 CFM |
| 8 inches | 180 CFM |
| 9 inches | 240 CFM |
How big of a duct do I need for a range hood?
Don’t ever use 4″ ducting or any plastic ducting on a range hood installation. Per most manufacturers the minimum size duct allowed for range hoods is 3 ¼” by 10″ which is equivalent to 6″ round. Larger and hoods with higher CFM’s (cubic feet per minute) require even larger duct sizes up to 10″and 12” round.
Where do range hoods discharge to out doors?
Range hoods shall discharge to the out doors through a single-wall duct. The duct serving the hood shall have a smooth interior surface, shall be air tight and shall be equipped with a backdraft damper. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building.
What kind of HVAC ducts are at Lowes?
At Lowe’s, we have a variety of HVAC ducting sizes that range in both diameter and length. Looking specifically for flexible HVAC duct? Online, you can shop by two major duct types: flexible and semi-rigid.
Where can I get duct pipe for my AC?
We also have the connectors and accessories you need to complete your AC ductwork. You can find rigid duct pipe and connectors along with duct caps and elbows to avoid any obstacles when routing your ductwork. No matter what kind of duct supplies you need — whether rectangular HVAC duct, HVAC return duct or something else — we’ve got it at Lowe’s.