Which shows almost direct venting, just adds a pieceClick on the link and the manufacture tells you how to install a Type I hood over their wood fired pizza oven on pages 11, 12 & 13 http://www.fornobravo.com/PDF/commercial_install.pdf
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FIRE SUPPRESSION
Check with your local code officials to see if fire suppression is required in your area. If fire suppression is required, you must vent the oven using a Type 1 hood, constructed and installed in accordance with NFPA 96. Forno Bravo offers UL Listed Exhaust hoods for our ovens that are pre-piped for ANSUL R-102 fire suppression. We do not recommend aiming any fire suppression nozzles into the cooking chamber of the oven. All installations are subject to the approval of the local authority having jurisdiction.