Location of Incubator To help your incubator maintain a constant temperature, place it where it will receive as little temperature fluctuation as possible. Do not place it near a window where it will be exposed to direct sunlight. The sun's heat can raise the temperature high enough to kill the developing embryos. Connect the unit to a dependable electrical source, and made sure the plug cannot be accidentally detached from the outlet. Before you incubate, be sure the incubator is working properly and that you know how to operate it.
Heat sources having a thermostat are most reliable.
Light bulb units without a thermostat can be difficult to control unless the room temperature is relatively constant. Occasionally, people attempt to incubate eggs in ovens or other unconventional facilities. They are nearly always disappointed because temperature and humidity requirements are within a quite narrow range. When eggs are placed into an incubator operating at the proper temperature, the temperature will drop. Do not adjust the thermostat upward during this warmup period.