Thursday, February 7, 2013
Tuesday, January 22, 2013
Q & A on Hood Chimney Over 8' Tall Vented to Rear
Q.
Ms. Deras,
My husband and I are looking to replace a pretty much useless under cabinet vent with a more modern looking, higher powered wall mounted vent hood. We do have exterior wall venting currently.
The problem I am having is that all the hoods I look at show a "chimney" that goes to the height of the ceiling. Our ceiling is about 14 feet high, and there is a small window near the ceiling above the cooktop.
The cabinet height is 8 feet. We will be removing the cabinet above the cooktop.
My question is, can we install one of those nice modern hoods and run the "chimney" only to the height of the adjoining cabinets? We could put a matching piece of wood to cover the top, if necessary.
Will this look odd?
Thank you for your help,
Susan
A.
Hi Susan,
Yes. You can stop the hood stack anywhere you wish as long as you can vent back through the wall there.
I am visualizing your issue and would recommend that you carry the stack up higher than the 8' of the cabinet tops.
Then you buy a matching special part from the hood supplier or an HVAC (Heating, Ventilating, Air Conditioning) company. This part turns the top of the hood back into the wall so it has a nice transition and you don't have to "finish it off" with wood as you think.
Take a look at this image:

See how the top of the hood angles back?
This is what you need.
One caveat: You need to consider the proportion of the hood and chimney in this scenario in order to have the best possible outcome (Try to visualize the hood in the picture with a chimney that is half the height to see what I mean).
To decide how high to make the chimney, make a simple elevation drawing to scale. 1/2" scale to the foot is good.
Draw everything that will be on that wall including the ceiling line and the window.
You can just draw the outlines, leaving out the details.
Make a bunch of photocopies of your drawing.
If you don't have a good eye for proportion, ask someone who does to help you.
Maybe even a designer...;-D
REMEMBER TO PLACE THE BOTTOM OF THE HOOD TO MANUFACTURER'S SPECIFICATIONS.
Now draw the hood chimney, including the angled back transition, in various heights until you find one that pleases your eye. That will be the one that has a proper proportion in relation to the cabinets and window and ceiling height.
The brass hood in my portfolio photo is by Abbaka.
If you decide to spring for a pricey custom hood, such as the one by Abbaka, they will make the angled transition for you.
If not, you will have to piece it together.
That will not be quite so sleek looking.
But ever so much nicer than finishing it off with wood.
It also makes good sense to order the hood motor with rear-venting. That means that the chimney is essentially useless and only there for looks, but it is much more efficient to vent directly out the back than to zig-zag up the chimney.
Peggy
Posted by
Peggy Deras, CKD, CID
at
8:09 PM
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Sunday, December 30, 2012
Q & A on venting a downdraft range
Posted by
Peggy Deras, CKD, CID
at
12:57 PM
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Labels: 94080, Downdrafts, Hoods, Ventilation
Tuesday, December 18, 2012
Recall: LG Top-Loading Washing Machines
Posted by
Peggy Deras, CKD, CID
at
2:45 PM
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Saturday, November 17, 2012
Recall: LG Ceramic Electric Ranges
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Peggy Deras, CKD, CID
at
11:03 AM
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Wednesday, October 3, 2012
GE Recalls Front Load Washers Due to Injury Hazard
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Peggy Deras, CKD, CID
at
2:10 PM
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Tuesday, August 21, 2012
LG & Sears Recall Gas Dryers Due to Fire Hazard
LG Dryers
Picture of recalled DLG0452W LG dryer
Picture of recalled DLG1320W LG dryer
Picture of recalled DLG2051W LG dryer
Sears Kenmore Elite Dryers
Picture of recalled 796.90512900 Kenmore Elite dryer
Picture of recalled 796.90518900 Kenmore Elite dryer
Picture of recalled 796.91022900 Kenmore Elite dryer
Picture of recalled 796.91028900 Kenmore Elite dryer
Picture of recalled 796.91029900 Kenmore Elite dryer
Picture of recalled 796.92192900 Kenmore Elite dryer
Picture of recalled 796.92198900 Kenmore Elite dryer
Picture of recalled 796.92192900 Kenmore Elite dryer
Both LG and Kenmore Elite Dryers' Model and Serial Numbers are in the location shown in the diagram below:


















