Plumber Red Seal · Question
According to the NPC, how far must a plumbing vent terminate from an openable window or air intake?
To prevent sewer gases from entering the building, the NPC specifies minimum distances for vent terminations from windows, doors, and air intakes. A common requ
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Question: According to the NPC, how far must a plumbing vent terminate from an openable window or air intake?
Answer options: ✅ At least 1 m (3.3 ft) horizontally.
- At least 900 mm (3 ft) below the window.
- Any distance, as long as it is above the window.
- At least 3 m (10 ft) in any direction.
Correct answer: At least 1 m (3.3 ft) horizontally.
Explanation: To prevent sewer gases from entering the building, the NPC specifies minimum distances for vent terminations from windows, doors, and air intakes. A common requirement is a horizontal separation of at least 1 meter.
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