We are installing a wall hood over our stove and the best way to vent
it would be to go into the basement and out the wall otherwise we have
a tube or built in box running along the ceiling/wall in the kitchen.
I'm wondering if it is possible to go through the wall and then down
with an above the stove unit. I know downdraft vents go down but is
it legal or possible to vent an over the range hood down? Thanks,
Gavin

wrote in message
oups.com...
We are installing a wall hood over our stove and the best way to vent
it would be to go into the basement and out the wall otherwise we have
a tube or built in box running along the ceiling/wall in the kitchen.
I'm wondering if it is possible to go through the wall and then down
with an above the stove unit. I know downdraft vents go down but is
it legal or possible to vent an over the range hood down? Thanks,
Gavin



Legal or not, the duct will eventually get filthy inside and there'll be no
way to clean it. Is the stove on an inside house wall, or outside wall?

On Mar 5, 1:18 pm, wrote: brevity
snip
We are installing a wall hood over our stove and the best way to vent
it would be to go into the basement

I'm having a hard time picturing that, but I'd agree w/Mr.
Sparebedrom. In the long run, you're probably going to have some
pretty funky smells coming from it.
-----

- gpsman

It is on an inside wall. I would have the same access to clean it as
someone would have with a downdraft vent I think. I could access it
from the basement and perhaps put a clean out trap or access door in
the basement. My concern is with airflow going down. Perhaps I could
put a booster fan somewhere in the line. The run to the wall is going
to be about 6 feet. If a hood is installed over an island as I have
seen it must vent a similar distance with simlar cleaning issues?
Thanks for any further input. Gavin

It is on an inside wall. I would have the same access to clean it as
someone would have with a downdraft vent I think. I could access it
from the basement and perhaps put a clean out trap or access door in
the basement. My concern is with airflow going down. Perhaps I could
put a booster fan somewhere in the line. The run to the wall is going
to be about 6 feet. If a hood is installed over an island as I have
seen it must vent a similar distance with simlar cleaning issues?
Thanks for any further input. Gavin

wrote in message
oups.com...
It is on an inside wall. I would have the same access to clean it as
someone would have with a downdraft vent I think. I could access it
from the basement and perhaps put a clean out trap or access door in
the basement. My concern is with airflow going down. Perhaps I could
put a booster fan somewhere in the line. The run to the wall is going
to be about 6 feet. If a hood is installed over an island as I have
seen it must vent a similar distance with simlar cleaning issues?
Thanks for any further input. Gavin



I asked about the outside wall because that would allow the installation of
a wall fan to the outside, which is the best kind of fan for any kitchen.
When I redesigned the kitchen in my previous home, three designers claimed
that ducting from an inside wall would not be a problem. It sounded like
bull**** then, and it still sounds like bull****.

wrote:
It is on an inside wall. I would have the same access to clean it as
someone would have with a downdraft vent I think. I could access it
from the basement and perhaps put a clean out trap or access door in
the basement. My concern is with airflow going down. Perhaps I could
put a booster fan somewhere in the line. The run to the wall is going
to be about 6 feet. If a hood is installed over an island as I have
seen it must vent a similar distance with simlar cleaning issues?
Thanks for any further input. Gavin

Yes, you can get a booster fan. I saw one for a 4" vent at HD for less than
$30.00. You'll run the booster's wires to the existing fan so the booster is
energized at the same time as the main fan.

You might try venting without the booster first; your existing fan may have
sufficient oomph.

You're probably thinking that the heated air (from the stove) will have a
tendency to move up. But up, down, makes no difference. The fumes will be at
room temperature almost immediately. Further, you'll be pulling in more room
air than cooking fumes anyway.

Don't forget to guard the exhaust vent with a device to prevent hedgehogs
and other critters from entering.

On Mar 5, 3:46 pm, wrote:
It is on an inside wall. I would have the same access to clean it as
someone would have with a downdraft vent I think.

Except for up in the initial two 90's, or the horizontal section
between them.

I could access it
from the basement and perhaps put a clean out trap or access door in
the basement. My concern is with airflow going down. Perhaps I could
put a booster fan somewhere in the line.

I'm no expert, but shooting from the hip (my ass), sure you can
install additional fans, but I don't think airflow is going to be the
big problem. I think where that air has to turn is going to collect a
lot a funk.

The run to the wall is going
to be about 6 feet. If a hood is installed over an island as I have
seen it must vent a similar distance with simlar cleaning issues?

Again, I'm just guessing, If you can configure some convenient clean-
out accesses it might be ok. Whether it meets code is another
question of which I have no idea of the answer. A flue fire, however
unlikely, I think would be their greatest concern, and something you
should probably take into account.
-----

- gpsman