Why is there a loss of power in C180 when the heating is on?

A loss of power in a C180 when the heating is on can be attributed to increased electrical load on the engine's alternator. When the heating system operates, it draws additional power, which may strain the engine, especially if it's already under load. This can result in reduced engine performance and responsiveness. Additionally, if the battery or charging system is weak, it may exacerbate the issue, leading to noticeable power loss.