BE CAREFUL!!!.
They want HUGE hoods with fire suppression…heated makeup air…all new ductwork. So…
Hi Mandy
The rules for conveyor oven hoods are the same as for Deck ovens. As to size of the hood be it deck or conveyor. The hood on any oven must overhang the oven by at least 6 in on any side that is not closed off by a wall or an end panel.
As to make up air, no matter what the equipment is, all exhausted air must be returned into the building at near room temperature. If the only cooking equipment is the pizza oven we have ventilation systems for them that do not require a separate heated make up air system.
As to fire protection, that is local option, the Fire Marshall can require protection or not.
You apparently purchased your oven from a source that did not inform you of the requirements for installation and rules for make up air. Not everyone selling equipment understands ventilation and most installations cost a lot to purchase but worse cost even more to operate year after year.
All the major players in the industry decided years ago that it was well worth switching to conveyor ovens.
George Mills