Gas Fitter Practice · Question
What type of venting system is characterized by a separate pipe for combustion air intake and another for flue gas exhaust, both terminating outside?
A direct vent system uses sealed concentric or separate pipes to draw combustion air from outside and exhaust flue gases outside, completely isolated from indoo
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Question: What type of venting system is characterized by a separate pipe for combustion air intake and another for flue gas exhaust, both terminating outside?
Answer options:
- Type B vent
- Type L vent
- Power vent ✅ Direct vent
Correct answer: Direct vent
Explanation: A direct vent system uses sealed concentric or separate pipes to draw combustion air from outside and exhaust flue gases outside, completely isolated from indoor air.
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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
- Which code specifies the requirements for the installation of propane-burning appliances and equipment?
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