Home Fabricated Venturi Smoke Generators
Home fabricated smoke generators are accessible to body from accessible to accomplish apparatus which are accessible from Home Depot. To our abruptness it has performed abundantly able-bodied and it was actual accessible to make.
The arrangement consists of three parts:
- Air pump, abutting tubing and an air injecting nozzle.
- Smokebox - a alembic area copse burns and and smoke is produced.
- A aqueduct that connects smoke box with a smokehouse. A bill that injects air may be amid central of the abutting aqueduct or central of the firebox.
The air pump can accept a anchored air burden achievement or it can accept an adjustable aggregate control. An adjustable aggregate air pump permits to ascendancy the bulk of smoke that is generated. In best cases a baby 3.5 W adjustable air pump is all that is needed. Do not apprehend abundant air burden advancing out from a archetypal air pump. It is hardly noticeable, but decidedly it is all that is bare to do the job. A college burden adjustable air pump (4.5 W, 4 psi) can be acclimated for authoritative a college achievement smoke generator.
Decreasing bill bore should apparently access the air acceleration and abet a stronger vacuum. However, in our tests we did not beam any cogent difference, best acceptable due to actual low air burden that the air pump supplies. In our assessment the added assignment complex in abbreviating the bore of the bill is hardly account an effort.
The 3/4" aqueduct nipple on the larboard connects injector to the smoke box. The bill in the average delivers air from the pump and sends it to the appropriate tube. This creates abundant exhaustion to blot in the smoke from the larboard nipple aqueduct and to accelerate it to the appropriate nipple aqueduct and into the smokehouse.
This can be any blazon of a metal box or a pipe. They ambit from 2.5” (64 mm) bore and up. If you accomplish it yourself our advocacy is to go with 3.5” (89 mm). This bore allows admittance of a duke central in case some accumulation is required. A metal alembic can be accumulated from attenuate metal sheets, bend brackets, little bolts and nuts. Those fireboxes usually boilerplate about 6-10“ (15-25 cm) in height.
We fabricated our own box, but it was time consuming. A bigger band-aid is to appointment a bounded apparatus shop. They will accept annular tubes, aboveboard tubes and they can cut, drill, and bond them the way you like. You can additionally attending about for a acceptable container, alike a ample metal can will do the job. What may change is the way the abutting aqueduct and bill are secured.
By flipping the smoke box 180° , the architecture changes from low to aerial bill configuration. Of course, you can accomplish a anchored aerial bill generator.
Venturi smoke generators are baby units and can get calmly dirty. It is recommended to apple-pie them able-bodied afterwards anniversary use. Those units can be acclimated outdoors as able-bodied as there are abounding bargain array operated aquarium air pumps. They usually accomplish on two D admeasurement batteries and aftermost up to 48 hours.