Question

it is used to spread equal heat
to the apparatus while heating ?​

Answer 1

Answer:

Various heat transfer mechanisms exist, including convection, conduction, thermal radiation, and evaporative cooling.

Explanation:

Answer 2

Answer:

A central heating system provides warmth to the whole interior of a building from one point to multiple rooms. When combined with other systems in order to control the building climate, the whole system may be an HVAC system.