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How Does Water Flow Through a Cast Iron Radiator?

Published in Home Improvement 2 mins read

Water flows through a cast iron radiator in a closed loop system.

How It Works:

  1. Hot Water Input: Hot water from the boiler enters the radiator through an inlet pipe.
  2. Convection: The hot water travels through a series of internal fins or tubes within the radiator. These fins increase the surface area, maximizing heat transfer.
  3. Heat Transfer: The hot water heats the metal of the radiator, which then radiates heat into the surrounding air.
  4. Cool Water Output: The cooled water exits the radiator through an outlet pipe and returns to the boiler to be reheated.

Key Components:

  • Inlet Pipe: This pipe carries hot water from the boiler into the radiator.
  • Outlet Pipe: This pipe carries cooled water from the radiator back to the boiler.
  • Internal Fins or Tubes: These components increase the surface area of the radiator, enhancing heat transfer efficiency.

Benefits of Cast Iron Radiators:

  • Durability: Cast iron is a strong and durable material, making these radiators long-lasting.
  • Heat Retention: Cast iron retains heat well, providing a consistent and comfortable temperature even after the boiler shuts off.
  • Efficiency: Cast iron radiators are generally efficient at transferring heat, making them a good choice for heating homes.

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