Outside Air Coming Back Into The House Through Exhaust Hood Vent - Appliances - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Appliances

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 01-11-2016, 09:46 PM   #1
Member
 
Join Date: Sep 2007
Location: Kansas City
Posts: 434
Rewards Points: 590
Default

Outside air coming back into the house through exhaust hood vent


Cold/hot air is entering back into my house, from my exhaust hood over my stove. With recent subzero weather, the cold air has entered back into the house back through the vent and through the filter and dripped down onto the stove below.

Is there anyway of preventing the outside air back into the house? I have attached a picture of the vent(kind of hard to see) that is on the outside of my house. Are there alternative vents that might work better or other ways to prevent the air return? Thanks!
Attached Thumbnails
Outside air coming back into the house through exhaust hood vent-vent1.jpg  

Advertisement

kennykenny is offline   Reply With Quote
Old 01-12-2016, 11:15 AM   #2
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: Washington DC Metro Area (VA, MD, DC)
Posts: 11,258
Rewards Points: 1,408
Default

Outside air coming back into the house through exhaust hood vent


I was at a home yesterday that had a spring on the exhaust vent. Might have been DIY homemade but it appeared to be working well.

Advertisement

Windows on Wash is offline   Reply With Quote
Old 01-12-2016, 08:50 PM   #3
Member
 
Join Date: Mar 2012
Location: far sw sub chicago
Posts: 5,441
Rewards Points: 5,364
Default

Outside air coming back into the house through exhaust hood vent


that pic is about worthless. anyway. can you get up there to look at it ? if so, how easy does the flap work ? if very easy, you can tape or glue some weight to it. and see how well the flap seals and if its clean.

i used to have that problem, but i couldn't do anything about it from the outside. so i just wrapped the filter with tin foil.

and there are nice units
http://www.luxurymetals.com/outside-vent-covers.html
Fix'n it is offline   Reply With Quote
Old 01-13-2016, 11:23 AM   #4
Newbie
 
Join Date: Jul 2015
Location: South Carolina
Posts: 8
Rewards Points: 16
Default

Outside air coming back into the house through exhaust hood vent


I've been thinking about buying backdraft dampers from Tamarack for my dryer and soon to be bathroom fans. They get variable reviews on amazon but I think they sound like a good idea.

http://www.tamtech.com/Backdraft-Dampers_c_10.html

I'm not sure how easy they'd be to use in a kitchen. They'd have to be somewhere accessible for occasional cleaning.
GAPossum is offline   Reply With Quote
Old 01-13-2016, 09:36 PM   #5
Member
 
Join Date: Oct 2014
Location: Washington Metro Area
Posts: 126
Rewards Points: 252
Default

Outside air coming back into the house through exhaust hood vent


It's been a while since I did my exterior hood vent selection.

One aspect I notice looking at your photo is the pitch of the exterior vent opening doesn't appear to be parallel to the wall but rather appears facing out at you. Wonder if wind might drive rain straight on. Most exterior wall hood blower units have both a bird/insect cage and as mentioned above, a damper somewhere along the run to keep prevailing winds during rains from getting into the duct system and beyond. The link provided above shows the dampers well. Do you know where the damper is? For example, mine is a butterfly type shown above and is above the removable baffles of my vent hood

At installation of the external blower vent, after the blower ring is placed in the wall opening, the blower is attached by six screws to the wall. All required screws on the back panel must be placed, so that any moisture that may get inside the housing won't leak into the house.

Perhaps you may wish to check these two aspects for potential help to your problem. Good luck.
ProGreen is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Bathroom Vent Fan Exhaust Routing Problem Thunder Chicken HVAC 7 10-17-2015 08:00 PM
sloping back yard 1sthome4me Landscaping & Lawn Care 1 03-14-2015 04:08 PM
water main coming into the house? USNrider Plumbing 11 04-15-2013 07:04 AM
Ventilation - Opposing gable, limited soffit + box vents = Screwed up? darlingm Roofing/Siding 1 09-07-2011 11:13 AM
Exterior Furnace exhaust vent pipe NeedHomeRepair HVAC 1 12-20-2010 06:17 PM




Top of Page | View New Posts