Gas Fitter Practice · Question
According to CSA B149.1, what is the maximum allowable length for a single horizontal run of vent connector for a Category I appliance, without specific engineering design?
The CSA B149.1 code limits the horizontal length of vent connectors to ensure proper draft and prevent flue gas spillage. This limit is 75% of the total vent he
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Question: According to CSA B149.1, what is the maximum allowable length for a single horizontal run of vent connector for a Category I appliance, without specific engineering design?
Answer options: ✅ 75% of the total vent height
- 100% of the total vent height
- 5 feet (1.5 m)
- 10 feet (3 m)
Correct answer: 75% of the total vent height
Explanation: The CSA B149.1 code limits the horizontal length of vent connectors to ensure proper draft and prevent flue gas spillage. This limit is 75% of the total vent height.
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