Heating elements are actually not used typically in either a boiler or a furnace system.

实际上，加热元件通常不用于锅炉或熔炉系统。

A furnace system has hot air which is then moved by fans to different parts of the house from the furnace to the rooms where you need the heat.

炉子系统有热空气，然后通过风扇将其移动到房屋的不同部分，从炉子到您需要热量的房间。