I have a both the 045 and 066. Both of them have a default start temp. Your smoker will run on High for 45 minutes after you start it. During the heat of summer you might see temps above your set temp during start up. Even during the summer the time to hit 225 will be different depending on placement of your smoker (Direct sun, or shade), and the amount of cold product you load into the smoker. During the Winter here in Idaho, you might not see your set temp for an hour or so.