Each unit can be purchased wth a vent kit for ease of installation csll The Hot Water Haven if you have questions!
4" Horizontal Stainless Steel Z-Vent Wall Hung Water Heater Vent Kit with Backflow Preventer
 
Kit Includes:
 
(1) Termination Hood
(1) 4" x 90-Degree Elbow
(1) 4" x 12" Pipe
(1) 4" x 18" Pipe
(1) Wall Thimble
(1) 4" Universal Appliance Adapter with Backflow Preventer
 
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