Doyonâ€TMs 30 Pan Electric Combination Oven/Proofer (JAOP12SL) is a versatile unit for high volume commercial foodservice operations. Restaurants and bakeries will find the JAOP12SL to be useful, as the unit features Doyonâ€TMs patented Jet Air System. The system works by moving air in one direction for 2-1/2 minutes, stopping for 25 seconds, then moving air the other direction for 2-1/2 minutes. The air circulation allows products to bake more evenly than in competitorâ€TMs units. The JAOP12SL runs on electrical power. The oven has a capacity of 12 standard sheet pans while the proofer can hold 18 pans of the same size. The 30 Pan Electric Combination Oven/Proofer is versatile enough to work in a variety of commercial foodservice establishments. Features: Two speed fan, Fan delay switch, Interior lighting, Digital reminder timer, Oven capacity: 12 standard sheet pans (18â€ x 26â€), Proofer capacity: 18 standard sheet pans (18â€ x 26â€). Benefits: Glass doors allow visibility of product during baking process, Stainless st.