A residential building is being constructed with a forced-air heating system. Which of the following is a required component of the system, according to the 2024 International Residential Code?
- AA gas-fired water heater
- BA central air conditioning unit
- CA gas-fired boiler
- A direct venting gas furnace
Exam tip
Always check for the specific requirements of the heating system as outlined in the code.
Why D is correct
The 2024 IRC requires a direct venting gas furnace for a forced-air heating system to ensure safe combustion and exhaust. The other options are not required components for the heating system.