A gas water heater is being replaced in an existing home. The installer is considering using a direct-vent water heater. What is the minimum venting distance from the water heater to the building exterior?
- A3 feet
- 5 feet
- C7 feet
- D10 feet
Exam tip
Direct-vent water heaters require specific venting requirements to ensure safe operation.
Why B is correct
According to Section R1009.6.1 of the 2024 IRC, the minimum venting distance from a direct-vent water heater to the building exterior is 5 feet. This is to ensure proper ventilation and prevent carbon monoxide buildup.