Grain Systems PNEG-581 - Manual (Page 25)

5. Heater Operation
PNEG-581 Deluxe Vane Axial Heater 25
Adjusting the Vaporizer
1. Vaporizer should be adjusted so the vapor pipetrain runs warm to the touch (100°F-120°F).
2. Loosen 5/16" bolt on adjustment bracket.
3. Swivel vaporizer away from flame if running too hot, closer to flame if too cold.
4. Move vaporizer only 1" at a time and allow a few minutes for temperature to equalize.
5. Tighten 5/16" bolt and watch heater run for several minutes to verify adjustment.
Figure 5A Adjusting the vaporizer coil on a liquid propane model.
The top photo shows the setting in, and the bottom photo shows the coil out.