Humber/Ontario Real Estate Course 4 Exam Practice

Which property feature is vital for ensuring heating system functionality?

1. Availability of natural gas

2. Electricity grid connection

3. Gravity-fed system for smooth operation

4. Proper ventilation for combustion

5. Sufficient insulation

6. Well-maintained filters

The correct answer is: Gravity-fed system for smooth operation

The key feature that ensures heating system functionality is the necessity for proper ventilation for combustion. Heating systems, especially those that rely on fuel combustion (like furnaces or boilers), require a safe and efficient way to expel combustion gases and draw in fresh air for the process. Adequate ventilation is essential to prevent the buildup of harmful gases such as carbon monoxide, which can arise from incomplete combustion. In heating systems that use gas, for example, the exhaust must be vented outside, and fresh air must be provided to sustain the combustion process. If the ventilation is insufficient, it could lead to operational failures or unsafe conditions. Proper ventilation essentially supports the efficiency and safety of heating systems and is therefore vital for ensuring their functionality. While features like the availability of natural gas, electricity connection, and well-maintained filters contribute to system performance, they do not address the critical need for safe and effective gas exhaust and air intake. Insulation also plays a role in energy efficiency but is not directly related to the operational integrity of the heating system itself.