Questions for Part II
1. What are the essentials in heating a house with a hot-air furnace?
2. How does the "pipeless" furnace differ from the other types?
3. Explain the circulation of water thru a hot-water heating system.
4. What is the purpose of the expansion tank? Where should it be located?
5. Describe a steam-heating system.
6. What care should be taken in managing a steam-heating system?
7. What precautions should be taken when using an electric heater?
PART III
Lighting Devices