A New Way of Flight Training⦠- American Bonanza Society
A New Way of Flight Training⦠- American Bonanza Society
A New Way of Flight Training⦠- American Bonanza Society
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An Alternate<br />
Preheater<br />
By David F. Rogers, PhD, ATP<br />
With winter well underway engine<br />
preheat is frequently necessary.<br />
The typical preheat is either<br />
propane fueled hot air or a stick-on<br />
Figure 1. Overall view.<br />
electrical heater. However, propane heaters are frequently not allowed in hangars,<br />
and electrical stick-on heaters add weight that is carried around all year. With this<br />
in mind I developed an alternate electric heater system. The system consists <strong>of</strong> a<br />
metal 1300/1600 watt electric heater, an adapter that channels the heater airflow<br />
into a 4-6 feet long length <strong>of</strong> 4-inch metal flexible ducting, three 2-foot lengths <strong>of</strong><br />
4-inch diameter stove pipe, a 4-inch Tee, a 90-degree elbow which forms the U-shape<br />
and a couple <strong>of</strong> 1 1 /2-inch wide steel or aluminum support legs. The system can be<br />
installed and/or removed in about five minutes.<br />
Figure 2. Heater adapter.<br />
34 AMERICAN BONANZA SOCIETY JANUARY 2012
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