Tests indicate that the shirt board will increase to about 140º F after an hour of typical use. This is a benefit as it will decrease your flash time. However, take this increase into account when flashing by checking the ink for tackiness on a regular basis. Adjust the heater away from the shirt board if you notice the garment is getting too hot too quick. Also consider the Flash-A-Matic™, an automatic device to swing the heater away from the shirt board after a time delay. This will reduce the guesswork of the flash time and avoid unnecessary heat being applied.