Gas Fitter Practice · Question
What type of venting system effectively separates combustion air intake from flue gas exhaust, preventing indoor air depletion?
Direct vent systems draw combustion air from outdoors and exhaust flue gases outdoors through a sealed system, maintaining indoor air quality.
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Question: What type of venting system effectively separates combustion air intake from flue gas exhaust, preventing indoor air depletion?
Answer options:
- Natural draft vent system.
- Power vent system. ✅ Direct vent system.
- B-vent system.
Correct answer: Direct vent system.
Explanation: Direct vent systems draw combustion air from outdoors and exhaust flue gases outdoors through a sealed system, maintaining indoor air quality.
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- What is the maximum allowed pressure for a propane system supplying a residential appliance?
- When installing a gas outdoor appliance, what is the minimum required clearance from an opening into a buildin
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