Gas Fitter Practice · Question
According to CSA B149.1, what is the minimum clearance required for a single-wall vent connector from combustible materials?
CSA B149.1 specifies a minimum 6 inch (150 mm) clearance for single-wall vent connectors from combustible materials, unless protected.
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Question: According to CSA B149.1, what is the minimum clearance required for a single-wall vent connector from combustible materials?
Answer options: ✅ 6 inches (150 mm)
- 9 inches (225 mm)
- 12 inches (300 mm)
- 18 inches (450 mm)
Correct answer: 6 inches (150 mm)
Explanation: CSA B149.1 specifies a minimum 6 inch (150 mm) clearance for single-wall vent connectors from combustible materials, unless protected.
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