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Paddle and Re-circulating Fans
The September issue of the Alabama Poultry
 Engineering
and Economics Newsletter (Issue #13) reports on benefits of using paddle
or vane axial re-circulating fans in the poultry house.
As the smoke-shot photo at left shows, heat rises, and even much of the heat
produced by a brooder will rise, and will stay in the top of the house unless we
do something to bring it back down. New models and new approaches to using
in-house air-mixing fans can deliver significant savings on propane costs during
brooding and in cold weather, while at the same time helping improve in-house
conditions. The direct savings on fuel costs can amount to a 15% to 20%
reduction in out-of-pocket costs even in well-managed and up-to-date houses.
Indirect savings can come from improved flock performance resulting from getting
warmer floor temperatures, more temperature uniformity in the house, better
drying and less caking and condensation.
This report, published by Auburn University,
gives details on stirring or re-circulating fan operation and management,
including cost factors. Paddle
and Re-circulating Fans
Stir Fan Options for High and Low Ceiling Poultry Houses
Growers wishing to get
maximum wintertime fuel efficiency and at the same time improve the house environment
are more and more installing ceiling stirring fans to recirculate air in the
house. This accomplishes mixing of warm air near the ceiling with cooler air
near the floor, which effectively recycles heat from the furnaces. Some growers
use paddle-type (Casablanca) fans, and others use axial vane panel fans.
This
report,
published
by
Auburn
University,
describes
the
various
ways
growers
are
currently
using
ceiling
fans
in
both
high
and
low
ceiling
house
types.
Stir
Fan
Options
for
High
and
Low
Ceiling
Poultry
Houses |