Noritz NR71-SV NG Indoor/Outdoor Tankless Natural Gas Water Heater, 6.3 GPM

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Features:

• 180,000 BTU
• .05 GPM activation flow rate
• Self-diagnostic onboard computer system
• 83% thermal efficiency
• PVC cannot be used for its venting. Use only Category III stainless steel venting. Outdoor install - No venting required