Why is there a metal grill at the top of convector heater?

The metal grill at the top of a convector heater serves several important purposes:

* Safety: The grill protects users from direct contact with the hot heating element inside the heater. This element can reach very high temperatures, posing a burn risk if exposed. The grill acts as a barrier, preventing accidental burns.

* Convection Enhancement: The grill helps to direct the flow of warm air upwards. The hot air rises from the heating element, passes through the grill, and circulates throughout the room. This promotes better and more efficient convection heating.

* Aesthetic Appeal: The grill can add a decorative touch to the heater, making it look more aesthetically pleasing.

* Dust Prevention: The grill can help to prevent dust and other debris from entering the heater and obstructing the heating element.

In summary, the metal grill on a convector heater is essential for safety, improves convection, adds a decorative touch, and helps prevent dust accumulation.