Available at 115 or 230 volts at the same price, the standard unit has a heating surface of 16" x 16", but larger sizes are available. Temperature control, like an oven in the kitchen, is a must to fully cure inks (like fully cooking in the oven). With temperature control, the heating element should be placed 1.5-2" above the garment, and the heat turned down to avoid scorching garments and to avoid a high electric bill. Heat will be evenly distributed. So 16" x 16" of heat is sufficient for wet images 14" x 14" or smaller. If you go with an 18" x 18" heated surface, you increase the area by 27% and your electrical bill accordingly, and the price will be $795.. If you have 230 volts (220-240), that will save you money, but you will not be able to plug in anyplace. The flash can be automated with a foot pedal to swing 90 degrees at a cost of $$850.