range hood vent into garage

[paulv]

I would like to put a vented range hood in our kitchen. There is no existing duct work. The wall that the stove is on is adjacent to the garage. Our house is two stories so going to the roof is impossible. Venting out the back of the house would require alot of demo to get the duct work into the ceiling.

The easiest option appears to be going through the wall into the garage. The garage floor is about 2 feet lower than the house so the duct would enter the garage at about 8 feet above the slab. Is it acceptable to simply go through the wall and put a 90 toward the ceiling and vent into the garage? The other option is to run the duct up to the ceiling, across the garage and through the garage wall to outside.

[Ed Imeduc]

The other option is to run the duct up to the ceiling, across the garage and through the garage wall to outside.
Sounds good Id check code there first. Are just vent into the garage. Also over the kitchen cabinets there you should have that 13" space. could run a pipe there to the left or right outside??????

ED ;)

[majakdragon]

Most people think of a rangehood vent to get the smell out of the kitchen. The second thing is oil. The filters do not catch ALL the grease and oil so you will/would be exhausting it into your garage. I would run it out the garage wall. Try not to put in any more fittings than absolutely necessary. Each fitting reduces flow. You also said "run it up to the garage ceiling" and out the wall. If it isn't blocking anything you should run it across the area and not make any oil try to climb a 90 degree fitting. It will resist and stay at the bottom of the 90. Good luck with your project.

[paulv]

Thanks for the help. I hadn't considered the grease getting into the garage. I will definately vent to the outside.

[danski0224]

Of much greater concern would be the duct passing through a fire rated wall (your garage) without a fire damper protecting the rest of the house.