venting a range hood out the soffit

[dawg]

can it be done?
I cant really go out through the roof cuz winter snow will make the vent ineffective.
what about baffles? where do I get my materials?
Home depot and lowes doesn't have much.
I need rigid duct (its code) no flex hose etc.

 

[awdblazer]

out the wall? i wouldnt go soffit
i have a bathroom exhaust fan and its vented on the roof and i have had no problems (knock on wood)

 

[ForceFed70]

It can be done. I've done it before. Getting a 4" pipe over the top wall plate into the soffit area is often difficult tho.

The problem with venting out the soffit is that it's typically warm moist air that wants to rise. Your venting ends up pushing air "down" at the soffit fighting the chimley effect. Alos, that air tends to exit the vent and go straight up into the soffit area. Certainly better than venting into an attic tho.

The roof is the best place. Not sure why you are concerned about snow. It's common practice here in canada. Just stick it a couple of feet up and use a hat.

 

[Milton Shaw]

Most range vents are 6" or 7" round going from a 3.5x10" square opening on the range hood or the microwave. A 4" that's mentioned is not nearly big enough so be ready for a much bigger pipe. The 3.5x10 inch rect. duct fits inside a stud wall. It's rare that I would see a microwave that was actually vented outside as that would cost the builder extra and they would cheap out on doing it.

 

[CitadelBlue]

I'm installing a replacement duct that will be 3.5"x10" rectangular vent from a combo microwave/convection oven/hood vent straight up through the cabinet (about 24 inches) with a left turn into an 6 inch round conversion duct that runs (about 6 ft) between the second floor joists throught the outside wall ending with a Broan 843BL 6" Round Duct Black Wall Cap with Damper. Hopefully the flow is better than what the builder installed as I eliminated two 90 degree turns.....

 

[BadgerBoilerMN]

Bad idea.

 

[pattenp]

Bad idea.

What's bad and why?

 

[pseudorealityx]

What's bad and why?

Because blowing grease-laden air into your soffits is a bad idea.

Follow the manufacturer's installation options. They will typically provide a horizontal and a vertical discharge option.

 

[Tim The Tool Man]

+2 or 3?? on going out the roof. It is probably the most common way of doing it and IMHO the easiest...

 

[kbs2244]

Every stove vent I install goes out the nearest wall.
Horizontal run in the soffit above the cabinets or between the joists.
You want it a short as possible to avoid any grease cooling and settling in the duct.

 

[jonathan75]

Every stove vent I install goes out the nearest wall.
Horizontal run in the soffit above the cabinets or between the joists.
You want it a short as possible to avoid any grease cooling and settling in the duct.

I need to do the same. I am so tired of the smoke blowing in my face. Since the stove is on the first floor I have to go between the joists out the side of the house or have a pipe coming up in the middle of my bedroom to the roof.

 

[Falcon67]

Most range vents are 6" or 7" round going from a 3.5x10" square opening on the range hood or the microwave. A 4" that's mentioned is not nearly big enough so be ready for a much bigger pipe. The 3.5x10 inch rect. duct fits inside a stud wall. It's rare that I would see a microwave that was actually vented outside as that would cost the builder extra and they would cheap out on doing it.

Our 3 1/2 x 10 is vented into the attic, has been for 12 years so ditto on cheap builder. None of the bath vans had a vent on them either. I'll take ours out through the roof when we get done with the kitchen rework.