Gas Fitter Practice · Question
According to CSA B149.1, what is the minimum clearance required between the vent termination of a Category I appliance and an operable window?
CSA B149.1 specifies minimum clearances for vent terminations to prevent flue gases from re-entering the building. For Category I appliances, it's 2 feet (600 m
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Question: According to CSA B149.1, what is the minimum clearance required between the vent termination of a Category I appliance and an operable window?
Answer options: ✅ 2 feet (600 mm)
- 3 feet (900 mm)
- 1 foot (300 mm)
- 4 feet (1200 mm)
Correct answer: 2 feet (600 mm)
Explanation: CSA B149.1 specifies minimum clearances for vent terminations to prevent flue gases from re-entering the building. For Category I appliances, it's 2 feet (600 mm) from operable windows.
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