www.desatech.com112127-01C 13Figures 21 through 23 show other options forthe gas vent. When venting through a side wallyour vent pipe must have the proper tempera-ture rating (see Figure 23). Manufacturer'sclearances must also be maintained. Consultthe authority having jurisdiction in your arearegarding venting through side wall.ventinG instaLLationContinuedFigure 21 - Vertical Venting ThroughCeiling Using Two 90º Elbows (Oxford™Model Shown)Figure 22 - Vertical VentingConfiguration Through Chimney(Oxford™ Model Shown)Figure 23 - Venting Through a Side Wall(Oxford™ Model Shown)INSTALLING VENT SYSTEM INTOCHASEA chase is a vertical box-like structure built toenclose venting that runs along the outsideof a building. A chase is not required for suchventing.NOTICE: Treatment of firestopsand construction of the chasemay vary from building type tobuilding type. These instruc-tions are not substitutes for therequirements of local buildingcodes. You must follow all localbuilding codes.Note: When installing in a chase, you shouldinsulate the chase as you would the outsidewalls of your home. This is especially im-portant in cold climates. Minimum clearancebetween vent pipes and combustible materialssuch as insulation is 1".