[Stoves] A low-cost hood possibility

[ajheggie at gmail.com]

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
>
>
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