Humber/Ontario Real Estate Course 4 Exam Practice

Which statement is correct about boiler systems?

1. Efficiency levels of oil furnaces are in the mid-70% range

2. Gas furnaces do not require a heat exchanger

3. Boiler systems can be either closed or open

4. Boiler hot water systems boil water

5. Boiler systems are only closed systems

6. Gas furnaces are more efficient without heat exchangers

The correct answer is: Boiler systems can be either closed or open

The statement regarding boiler systems being either closed or open is accurate because it captures the essential characteristics of different heating systems. A closed system refers to a setup where the water or steam circulates through a closed loop, meaning there is no exchange with the outside environment. This design is often more energy-efficient as it minimizes heat loss and allows for better temperature regulation. An open system, on the other hand, might allow for the introduction of fresh water or steam from the external environment, which can impact efficiency and temperature control. Understanding this distinction is fundamental in real estate, especially in contexts involving heating systems in residential or commercial properties. Proper knowledge of heating system types aids in assessing a property's efficiency, maintenance needs, and overall value. The other options tend to either misrepresent the functionality of boiler systems or provide inaccurate information regarding furnace efficiency and requirements. Therefore, recognizing that boiler systems can indeed be both closed and open gives a clear view of how these heating solutions operate effectively in different scenarios.