Gas Fitter Practice · Question
What is the maximum allowed length for a single run of corrugated stainless steel tubing (CSST) without additional support?
CSST requires continuous support or support at specified intervals according to manufacturer instructions and local codes, not a maximum unsupported length.
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Question: What is the maximum allowed length for a single run of corrugated stainless steel tubing (CSST) without additional support?
Answer options: ✅ CSST must be supported continuously.
- No more than 4 feet (1.2 m).
- No more than 10 feet (3 m).
- No more than 6 feet (1.8 m).
Correct answer: CSST must be supported continuously.
Explanation: CSST requires continuous support or support at specified intervals according to manufacturer instructions and local codes, not a maximum unsupported length.
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