Cooking Vent Hood

Hello all.
I'm at the planning stage for an off-grid home. So much to consider and sort out.
Wonder what non-electric ideas some of you might have for venting cooking fumes and odors when needed.
I am open even to rubber band powered propellers to move air. I don't see that I will need this often, but still want my design to have some kind of system in place
to move air.

Would something like a hand-cranked bellows work?

Maybe one of those spinning "turbine" roof vents would create enough draft to suck the stink out.

Jicky Jones : Where are you located ! The reason that I ask is, there is a specific type of chimney build not for moving the products of combustion, but to create
air movement from a warm spot within the house to the cooler exterior of the house !

This house feature is sometime called a 'black chimney' and in some configurations starts at ground level on the sunward side of the house as a black hollow
column, sometimes enclosed within a vertical glass wall, or well. Air in proximity of the black surface of the chimney warms and should become its own column
of rising air, exiting the house, and ideally creating a total house ventilation system controlled by moveable louvers on the 'Black Chimney' !

Paul Wheaton just did a 'pod' cast interview with noted Author and House Builder Rob Roy. I believe I heard Rob say that he was having problems with his 'Black
Chimney' and seemed to be saying that possibly the problem with his design was Location and Climate, He thought that due to diminishing returns that a ' Black
Chimney' would be a hard sell in new home construction so far north in our climate !

Rob Roy is a member here and I am sure he would respond to an inquiry after you have done a little more research ! - robandjaki@yahoo.com

Pod cast # 252 ' Mortgage Free ' by Rob Roy !

It would be hard to hand crank something while cooking, which is something I do actively.

I thing the chimney itself would have to get and stay hot to keep the air moving. I'm not sure it would get warm from cooking.
Maybe a reverse solar furnace, with the heated air blowing away and drawing cooking smoke out with it might work.
A lifestyle change to cook in the daytime only might be in order.

Hi, Bill Bianchi just started a tread on (Spring Coil) Windup Technology. It got me thinking about your problem. What you need is a hand wound spring coil exhaust fan. Similar to hand wind-up clocks or toys. Wikipedia states that the wind-up fans were popular in the 18th century. I did a search but did not find anything on the market.

I did find info on a small hand crank generator type of fan. Still, can't find one for sale on the market.



Here is a hot air EcoFan that works without any human or electric power. It is run by the heat coming off the stove. Maybe this could be used, venting out a wall or window instead of venting upward. http://www.youtube.com/watch?v=ksOZhxeCAvU

If anyone can find info on a hand wound recoil or hand cranked battery generator type fans please post a link.

Jiky Jones : H.eating V.entilation and A.ir C.onditioning H.V.A.C Engineers,recommend up to 5 complete air exchanges an hour ! In most homes the only time there is
any air exchange is when cooking in the Kitchen, Or using the Bathroom, The 'black chimney' is a whole house ventilation system that creates air exchanges by heating
up the air inside and surrounding the 'Black Chimney'. The Amount of Air Exchange provided is controlled by louvers.

With the "Black Chimney", the whole house type of air exchange you would get eliminates the need for a power'd-exhaust-on-demand ! As long as the kitchen or the
Bathroom are on the 'South side of the House' and next to a 'Black Chimney' they will vent first ! NO power use needed ! Hope this was clearer, and it helps !

For theFuture Good of the Crafts ! Be safe, keep warm ! As always, your questions and comments are solicited and are Welcome ! PYRO-LOGICALLY Big AL !

You could do an outdoor kitchen?