For those of you who want to heat a grow room though, I suggest you look at this heater: Lasko 755320 Ceramic Tower Heater with Digital Display and Remote Control. The slimline tower design means that its space saving and the large digital display at the top mean you can easily see and set the room temps.
Peacock eggs will hatch within 28 to 30 days of beginning the incubation process. On day 26, move the eggs into the hatching space and do not touch or turn at all. The hatching area is a simple basket where the chicks can safely move around as they hatch. As the chicks hatch, move them into a safe space for rearing.
Record the day and how many eggs you've incubated on a calendar. You should be able to estimate your hatch date based on average incubation times for the bird species you want to hatch. For example, chicken eggs typically take 21 days to hatch, whereas many duck varieties and peafowl may take 28 days.