Operating Instructions

Hornet Heaters have been tested in compliance with ISO-8846. Compliance ensures this device is ignition protected and is safe to operate in an enclosed area that may contain flammable gases. To operate the heater, plug it into an electrical outlet. Illumination of the light at the male end of the plug indicates the heater is receiving power and will heat when the temperature falls below the thermostat set point.

For engine heating: Use the Twin Hornet 22

Place it DIRECTLY BEHIND THE PROP

Cover the cowl with two heavy moving blankets or a fitted cowl blanket.

Allow up to 48 hours when heating a cold soaked engine.

The heater is rated for continuous duty, so it may (and should) be left plugged at all times.

There is no need to allow the engine to cool down before placing the heater in the cowl 

     after a flight, but it should be the last thing that is done.

The heater will turn on when the temperature falls below 70 degrees and it will turn off

     when the temperature reaches 80 degrees.

To heat the cockpit:

Use the Hornet 47 for the majority of general aviation aircraft

Use the Hornet 67 for cabin class aircraft or medi-vac helicopter

Place the heater in the front left or right seat floor board

Allow up to 6 hours when heating a cold cockpit

The heater is rated for continuous duty, so it may (and should) be left plugged at all times.

The heater will on when the temperature falls below 55 degrees and it turn off once the temperature reaches 65 to 70 degrees

 

 

To prevent our heaters from accidentally being turned off, there are no switches or knobs. The thermostats are hermetically sealed and nonadjustable.

Please allow ONE FULL HOUR for the heater to acclimate when being relocated from a warm environment to a cold one.

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