Range Hood Venting Problem

12 years ago

I'm installing a range hood in our kitchen. The hood is a Broan E66130SS. And for reference, here's a photo of the kitchen:

The stove is on an interior wall. The wall to the right with the window is an exterior one. We have a torchdown roof and a couple of contractors have recommended against going up and through it, so that leaves going out the exterior wall.

The hood has a rectangular exhaust port - 3.25"x13.75" and requires that size rectangular or 8" diameter round ducting (it's 600 cfm). To use round ducting and get to the exterior wall a straight boot and a ninety degree bend are required. The interior of the cabinet is 11.25" deep and 12" tall.

The plan was to install the hood under the cabinet above the stove and run the ducting through that cabinet and out the side wall. The problem that I've run into is that the interior of the cabinet is 12" tall, and the combination of the straight boot and 8" diameter 90 degree bend is 19" tall. It *might* be possible to use the space beneath the interior of the cabinet and the range hood, but that still only gets me up to a total of 13.5". There is a little over four feet of space between the top of the cabinet and the roof, so it might be possible to build a soffit that fills part of that space that the duct could run through, but because the cabinet is only 12" deep, and the positioning of a stud on the exterior wall that I want to avoid, it might be difficult to build a soffit with enough space inside for the duct to run through. We also like the open uncluttered look that it has now.

Is there any other way that I can go from the rectangular exhaust port to round duct within that 12 to 13.5" space? Is there some way to get custom ducting made? If that's the case, maybe I could get some sort of rectangular ducting to go through the cabinets and then put in a boot to connect to the round exterior vent?

Or is there some other easier way to do this that I haven't thought of?

Sort by:Oldest

Comments (3)

brickeyee
12 years ago
"We have a torchdown roof and a couple of contractors have recommended against going up and through it,"

Find someone who knows how to go through the roof.

It is not that hard with torch down.

A remote blower might be worth the expense.
John Liu
12 years ago
You can have a custom piece made, combining the transition with the elbow. You might lose a bit of efficiency and gain a bit of noise, but those seem like minor tradeoffs. I'm not sure if the stud in the exterior wall is a problem, not enough info, but the duct can jog over, or transition back to rectangular, to solve it. An external blower might compensate for the tradeoffs.

Or, if the horizontal run is run above the existing uppers but tight up against the wall, I wonder how visible it would be to the casual eye. You could paint it to match the wall. It could be rectangular for a lower profile.

Doesn't seem like a big obstacle, especially if you find a sheetmetal fabricator rather than using off the shelf pieces.
Related Discussions
Vent-a-Hood or Kobe hood for GE Cafe range
Q
Comments (1)
Hi Jenny - I know this post is old so I wanted to ask you which you decided to go with and how you like it?
...See More
need a 60" vent hood for range AND blower for a commercial hood.
Q
Comments (8)
Proline are rock bottom priced Chinese made hoods that use 430 SS instead of the much more common and more expensive 304 SS. 430 SS uses less nickel therefore is a little darker and more prone to rust. You need a 60-66" hood with at least 1200 cfm. You will not find another company that sells cheaper. Maybe a new Chinese company selling something equivalent. In 2010-11 about 10 people on GW purchased Proline Hoods. Five were satisfied including one that was very satisfied and posted on every thread that mentioned Proline extolling the virtues of the hood. About three were unsatisfied with the lights. Either they were too dim or would not turn off. One got a free circuit board but got the run around about getting reimbursed for labor. Two had major problems. Not getting the right parts and another(if I remember correctly) too many holes drilled into the hood and duct cover. One complained to the better business bureau and the BBB closed the case with an unsatisfied rating saying the company never answered. This person would also post in any thread that mentioned Proline. The other just grew frustrated and posted so again and again. Eventually, people on here stopped buying Proline. But if you want something of better quality and reputation with the correct size and cfm you will have to spend significantly more. Do you want two remote blowers or just one for the outdoor hood? Fantech budget but kinda noisy remote blower. Probably not a good idea if you have neighbors close to your property line. Abbaka considered the best remote blowers. You have to maker sure blower is compatible with hood. If it is single speed I don't think they make those anymore. 3 Speed or Variable speed.
...See More
Vent-A-Hood Ductless ARS range hood Update
Q
Comments (198)
With conventional hood systems, the expectation is that the larger particles within the entire grease particle spectrum are collected by the baffles, and the smaller particles are ejected into the outside air, with only modest condensation or impact collection by the duct. To deal with the entire particle spectrum with a filter pack is a challenge, and probably unaffordable in cost for most residential users. If the Amazon rating is based on comparison to outside venting, the result above might be reasonable. As a commercial example, the Wells WVU-31CT filter system is described below: "Filtration Completely self-contained filtration process reduces emissions below that allowed in NFPA 96 and ANSI UL710B using the EPA 202 test method and includes stainless steel grease baffle filter with grease cup, fiberglass pre-filters, high-efficiency (Particulate Air) filter/ carbon-charcoal filter pack. All filters are easily removable with out tools. Air flow sensors continually monitor air flow optimizing performance and grease removal while an interlock system will not allow cooking appliances to function if filters are missing, clogged or in the event of a fire." About $18k. Electric surfaces only.
...See More
range hood interior wall venting problem!
Q
Comments (1)
Why not continue the crown and frieze, only with a bottom, over the doorway?
...See More
mbcullen
Original Author
12 years ago
I think I've got this figured out.

First I spoke with the roofing company that put ours on. They recommended against going through the roof if possible. Not because it's terribly difficult, but because it's just generally better to have fewer holes up there. With that many people giving me the same story, I think I'll just go out the wall because it is an option.

Then I spoke with the guy I bought the ducting from before. I must have done a poor job explaining what I was trying to do then, or maybe he was getting anxious to get out of there for the upcoming holiday weekend, but he sold me the wrong parts. Instead of the straight boot and 90 degree bend, he should have sold me a torpedo boot which combines the two into one, similar to what you were describing as a potentially custom built piece, John. Then I can use one of the 90 degree bends to jog over a few inches. When they turned in the opposite direction, it's exactly what they do.

So I'll be able to avoid the roof, keep everything inside the cabinets and there shouldn't be any custom pieces involved. Perfect.

Range Hood Venting Problem

Comments (3)

brickeyee

John Liu

Related Discussions

mbcullen
Original Author

COMPANY

BUSINESS SERVICES

GET HELP

CONNECT WITH US

Range Hood Venting Problem

Comments (3)

brickeyee

John Liu

Related Discussions

mbcullenOriginal Author

COMPANY

BUSINESS SERVICES

GET HELP

CONNECT WITH US

mbcullen
Original Author