Sept 2017 Update: Simply stated, if outdoor temperatures are warmer than the chimney temperature, air might tend to flow down the chimney instead of up. This is terrible for starting old fashioned masonry stoves, which are hard to use before cold temperatures predominate. A significant updraft of air is needed for good fire starting conditions. Massive masonry heaters slow down the chimney warm up phase. A warm chimney is needed to eject the fire exhaust.

Therefore i tweaked the following experiment over several years. Which proved ineffective for creating updrafts in itself. I was surprised with stubborn failures. I had bought a surplus, high efficiency fan manufactured for large electronic equipment, which injected a considerable stream of air out of the chimney top. This fan took air from the chimney exterior, so as not to foul it's delicate turbo blades. The mechanical principles generally relate to Bernoulli' and Venturi tube effects.

Despite several efforts at tweaking some arrangement of this effect at the chimney top, my stove draft was not usefully induced. I need to build an inducer in my workshop first and then mount it up the chimney. The failure to do this is due to too many other projects which take all my time, for the humble chores of life.

My first modification to this finding was that the vortical induction should proceed only from center and not from outer edges of the chimney. Therefore i inserted a center tube to test this idea. Initial observation provided no initial improvements. I still need to improve the air dynamics of my crude "air nozzles.

I previously detailed my construction of simple chimney section below. (I think this was all installed around 2013. in my large chimney). I consider my tests only preliminary as i can well imagination other apparatus to build and test. My income is too low to hire assistance with this work, so it may not happen).

Original 2013 (?) Webpage Content Follows:

This webpage describes my experimental adaptation of double spiral flows, incorporated into a chimney.  At this first writing, only the spiral inducing features are described.

Callum Coats has generously published several excellent books on Viktor Schauberger's works. (Web search these names for many details and for free download books). Much of Victor's work involves vortices, whirls, flows and natural mimicry applied to engineering.  Except that the structural concepts are uniquely revolutionary, which challenges many vested interests. Which is likely why psychopaths Note: These pages are placed in the public domain and are furnished "as is". The author assumes no responsibility for the use or misuse of the concepts in this series. All pertaining laws should be satisfied, in duplicating or testing my concepts or descriptions, as are posted on my linked pages. him and prevented his best efforts. Thanks to many good people, much of his good work is being brought to public attention.

The first image above is a scant abbreviation of a remarkably well- hand- drawn- vorticular flow pattern. As Viktor visualized elements of his invention for water distribution, in specially modified pipes, (for plumbing). The helical aspects are many, which cross boundaries into many structural applications. This webpage applies the essence of the first drawing, into a chimney flue to whirl the exhaust. 

The next image below reveals my construction technique.  (Backgrounds are especially blurred to conserve website bandwidth).This stovepipe section (about 1 meter or 3 feet in length), was constructed to be installed in the top of my home dome. It actually also included some insulating features in the final installation, not shown here. The following images focus on the swirl inducing  structure and how to easily build it.  Over the years,  i have innovated many applications for molding Cementitious  structure.

The mold components include a heavy rubber hose. (Type for expelling auto exhaust from a garage.) Ropes are wound around the hose and food plastic wraps  these together. Then these can be loosely fit inside the stove pipe. In addition, holes are marked and later made for the screws.  Finally all are positioned as seen to left, in photos above.  The screws will anchor the cement which is hand molded into place, as seen in photos below.

The cement is revealed after the wrapped mold components are removed. The stove pipe thus receives a spiral shaped, fixed position, cement vane structure. This vane helps induce spiraling flows.   Whirling exhaust contrails can be seen at times, (though would require special efforts to capture in photos or video). Next photo below shows an additional whirl inducer- This inducer, (patch worked and welded together), is fed blower air in case the entire chimney structure happens to have been cooler than outdoor temperatures-  Which happens occasionally, before winter starts, when fires are little needed. This chimney is part of a complex masonry heater. I was just upgrading this top portion this Autumn 2013. 

The draft in my masonry chimney is overly strong in cold weather, without need for the extra blower-inducer. Rational for blower- inducing drafts is to isolate the blower from the exhaust, which tends to impair blowers or fans.  I bought a small surplus blower made for computers.  Actually, for my charcoal style of burning, i need special means to dampen or slow the draft.

(If i receive comments on my page, i often am inspired to add more text and photos. So please be encouraged to ask questions or comment. Unfortunately, my email is sometimes intercepted, so keep trying. It's just a growing feature of our times.) 

My pictorial, website index is here.

Here are some links on my website relating to double and multi spiral modeling experiments.

Envisaging Transverse Force Fields:   Laminated, parallel coils are considered on this linked page.

Geometric speculation: Relationship of poloidal structure to the tetrahedron.

geometric speculation: poloidal coil structure.

biaxial potential for habitable buildings.

2012 blog on Inductive Coupling Symmetries







Sunspot Coil Model

Pictorial Site Index Page

Note: These pages are placed in the public domain and are furnished "as is". The author assumes no responsibility for the use or misuse of the concepts in this series. All pertaining laws should be satisfied, in duplicating or testing my concepts or descriptions, as are posted on my linked pages., for modeling coil art?