Question: Can I Use Flexible Duct For Range Hood?

What type of duct is best for venting a range hood?


Single-wall ducts serving range hoods shall be constructed of galvanized steel, stainless steel or copper.

Best is sticking with rigid ducting that is the same size as the output of your stove hood, with as little elbows/direction changes in the shortest distance possible..

What is code for a range hood?

macv. The 2003 International Residential Code requires that a range hood discharge outdoors through a single-wall duct with a back draft damper and that “ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building”.

Who do you hire to install a range hood?

You might require the services of an electrician and/or cabinetmaker for this installation. You will need an electrician as rangehoods are powered units – required for the extractor fan and lighting. Expect to be charged in the region of $150 for the installation of a fixed rangehood.

How high should a range hood be from the stove?

20″ to 24″How high should I position the range hood above the stove? In general, most installations require a distance from 20″ to 24″ between the bottom of the hood and the cooking surface. Over a gas range, this distance should be between 24″ and 30″, unless otherwise specified.

Do I need to vent my range hood outside?

It’s far preferable to vent the air outdoors than to recirculate it into the room. A vented hood that removes steam, smoke, heat, and cooking odors is the best way to keep your kitchen clean, since it gets rid of grease particles that would otherwise accumulate on your walls and cabinets.

How do you stop condensation in a range hood vent?

Use insulated ducting, or wrap insulation around ridged ducting. Don’t lead the exhaust duct out through the soffit area — hot air rises and the warm moist air will simply rise back up inside the attic.

How do you vent a kitchen without a hood?

10 Things to Do If You Don’t Have a Range Hood or VentUse a window fan. … Use a portable HEPA air filter. … Use a fan in another room, like the bathroom. … Get a grease splatter guard. … Wipe down your kitchen cabinets frequently. … If you paint your kitchen, use a satin or semi-gloss finish, or choose scrubbable paint.More items…•

Can I use 4 inch duct for range hood?

The minimum duct sizes and recommended duct sizes based on a hood fan’s CFM rating are as follows: A 0 to 400 CFM fan requires a 4-inch minimum duct size, but a 6-inch duct is recommended. … A 901 to 1200 CFM fan requires an 8-inch minimum, and a 10- to 12-inch duct is recommended.

Should you insulate range hood ducts?

Like other duct systems in the home, insulation around range hood ducts reduces nuisance noise and vibration when the fan inside the vent hood is running. … Insulation will also help prevent the buildup of condensation and the moisture problems that can result from condensation accumulation.

Is flexible ductwork good?

For a more long-term solution, metal ductwork is a much better choice. Flexible ductwork is made of a thin, pliable material. Not only does this make less durable than metal, but it also means that flexible ducts are more likely to become damaged in the short term.

What is the minimum duct size for a range hood?

What is the minimum size for a kitchen 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.

What size duct is needed for 1000 cfm?

Equivalent diameter for rectangular and circular ducts – air flows between 100 – 50000 cfmAir flow – q – (Cubic Feet per Minute, cfm) (m3/s)Rectangular Duct Sizes (inches) (mm) x (mm)600 (0.27)8 x 12 10 x 10750 (0.34)8 x 14 9 x 12 10 x 11800 (0.36)8 x 15 10 x 121000 (0.45)10 x 14 12 x 1235 more rows

How much CFM do I need in a range hood?

A range hood fan should move a minimum of 100 CFM of air for every 12 inches of stove width. This means that if you have a stove that is 30 inches wide then you need a range hood with a fan that rotates at least 250 CFM of air.

How far does a range hood vent have to be from a window?

three feetThe exhaust termination must be three feet away from any window and ten feet from any mechanical air intake unless that intake is three feet below the vent termination.

Is 900 cfm enough for range hood?

A range hood with 900+ CFM will be enough to clean your kitchen air and keep your kitchen smelling fresh. In general, it’s better to go with more CFM than less.

How deep should my range hood be?

The ideal depth of your hood should completely cover the all of the burners, with complete coverage of all back burners and at least half of all front burners. The depth should be approximately 2′-3″ less than the depth of your cooking surface to ensure that you will not bump your head while cooking.

Can a range hood be vented through the floor?

“You can easily run the venting pipes down through the kitchen floor into the basement, then across the basement ceiling to an exterior wall where you can install a vent,” he says.