[Stoves] A low-cost hood possibility

[dan weinshenker]

Make exterior chimney with 1/2 barrel, vertical, top end cut off.  Once draft established, complete unit should draw. 

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> On Jan 29, 2021, at 10:18 AM, ajheggie at gmail.com wrote:
> 
> 
> Ronal
> 
> One would still need to have a pressure difference from the area above the stove to the outlet from the hood. Much of the temperature gradient from the fire to the chimney top has been lost in the mixing of flue gases and ambient air in the cooking area. In the absence of a fan what would determine what path the gases chose to take, if the hood presented an obstruction the gases would simply go round and up? In a windy area something like the cowl  used in oast houses might produce enough depression but that also adds to cost and complication
> 
>> On Thu, 28 Jan 2021 at 11:17, Ronal Larson <rongretlarson at comcast.net> wrote:
>> Stove list:
>> 
>> 	I’ve been talking with several list members about one drawback of TLUDs being the complexity and cost of adding a chimney.  As clean as TLUDs are, they would certainly receive more favorable notice if the exhaust could be easily vented.  
>> 
>> 	A quarter of a converted waste 200 liter (55. gallon) barrel might do it cheaply enough. .Can come in different colors - and 4 can be totally made locally from one drum - dimensions  about 28 x 28 x 82 cm  (11 x 11 x 33 inches).
>> 
>> 	Is using a locally made quarter-barrel a new or old idea?  Dimensions close enough to  ideal?   I presume there are dozens of ways to mount and allow different amounts of closure for winter  and rainy conditions.. or if electricity is possible - a fan and light.
>> 
>> 	Height above TLUD could be up to stove owner.  This width looks like it could handle 3-4 stoves in a row.  US hoods seem to be standard at 30 inches width.
>> 
>> 
>> Ron
>> 
>> 
>> <PastedGraphic-1.png>
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