In a school bus, a heater line tube, also known as a heater hose or heater line, is a component of the vehicle’s heating system. Its primary purpose is to transfer hot coolant from the engine to the bus’s heating system. This also includes a heater core it transfers to.
Functions of the Heater Line
- Hot Coolant Circulation: The school bus’s engine generates heat during operation. To prevent the engine from overheating, a cooling system circulates coolant (a mixture of water and antifreeze) through the engine and radiator. As the coolant flows through the engine, it absorbs heat.
- Heater Core: The heater core is a small radiator-like device located inside the school bus’s cabin. It is usually located under the dashboard. The heater line tube is connected to the heater core.
- Transfer of Heat: Hot coolant from the engine flows through the heater line tube into the heater core. The heat from the hot coolant is transferred to the air passing through the heater core, which is then blown into the cabin by a fan. This process warms the air inside the school bus, providing heating for the passengers.
- Temperature Control: The school bus’s heating system often includes controls that allow the driver or passengers to adjust the temperature inside the cabin. These controls regulate the flow of hot coolant through the heater line tube, which, in turn, adjusts the temperature of the air coming out of the vents.
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In summary, the line plays a crucial role in the school bus’s heating system. It transfers hot coolant from the engine to the heater core, where the heat is used to warm the air inside the cabin. This ensures a comfortable environment for passengers, especially during colder weather. Finally, at SouthPOINTE Radiator, we carry a variety of tubes to choose from, order yours today!