Furnace, Range Hood Share Chimney? - HVAC - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 10-17-2010, 06:58 PM   #1
Join Date: Feb 2010
Posts: 12
Rewards Points: 12

Furnace, Range Hood Share Chimney?

Hi all, I need to install a new range hood to replace the poorly installed non-working one. It's urgent for the winter as my housemate is Indian and only cooks Indian food and bacon (the latter being my contribution to help Americanize his tastes haha).

Currently a mish-mosh of dryer tubes, alum venting, and maybe even a spare muffler they found in the backyard are taped (or not) together leading to what can only be the main chimney which is used by both the furnace (Gas hw baseboard) and gas hot water boiler. Is it safe for the range hood to be sharing this chimney?

I can imagine it might be hazard if oil builds up and then a spark and propane light in there but I'd like a second opinion. If keeping this system is a no-no, can anyone recommend a good DIY site/resource for figuring out how put a vent in?

My kitchen setup has the stove in a island directly below the middle of a bedroom. I do have drop ceilings so would moving it to a window and having a insert at the top of the window, or drilling out to the exterior and venting out the side be a possibility? What's the reason that I see most recommend venting to the roof?

Also, how does the venting prevent oil buildup creating a fire hazard in the vents in any situation?


jamieofansa is offline   Reply With Quote
Old 10-17-2010, 07:30 PM   #2
30 year tech
hvac122's Avatar
Join Date: Dec 2007
Location: Lincoln, Nebraska
Posts: 427
Rewards Points: 250

No you can not vent the range hood with your gas fired appliances. Against codes and dangerous. As for venting it out a sidewall that should be OK. Follow the manufactures instructions as far as sizing and distance is concerned.


hvac122 is offline   Reply With Quote
Old 10-17-2010, 08:02 PM   #3
Chicago, IL
Michael Thomas's Avatar
Join Date: Jan 2008
Location: Chicago, IL
Posts: 1,037
Rewards Points: 500

M1502.1 General. 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...
Home Inspections, Infrared (Thermal Imaging) Leak Identification and Inspection Services, Roof, Attic, Building, Basement and Foundation Moisture Intrusion and Water Leak Inspections, Troubled Building Consultations - Serving Chicago and Suburbs http://paragoninspects.com/
Michael Thomas is offline   Reply With Quote

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
range hood ventilation Millertyme Appliances 0 08-31-2010 07:31 PM
Installing Range Hood and Stainless Steel Backsplash oguevarra Remodeling 1 02-26-2010 04:01 PM
New Range Hood - robbing combustible air??? drtbk4ever HVAC 2 05-26-2009 10:24 AM
Insulating a range hood? snapshotmd HVAC 3 01-13-2009 08:55 PM
Advice Needed re: Chimney Liner for Oil Furnace Mike_R HVAC 3 11-27-2006 03:04 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1