Why is a variable speed motor more energy efficient?

Why is a Variable Speed Motor More Energy Efficient?

You may be thinking that all you want is warm air and you don’t want to think about the technical aspects, but anyone who is enjoying off-grid living would need to pay special attention to energy efficiency.

Picture a single-speed motor, which runs at full capacity, then stops when the temperature reaches the set level, only until the temperature drops and the motor cycles back on at full speed. This kind of constant starts and stops waste a tremendous amount of energy. Variable-speed motor, on the other hand, can operate at high speeds or low speeds and adjusts the speed gradually to the required level to maintain a smooth temperature. Even though the variable-speed motor is basically always running, it is more energy efficient, because it runs mostly at lower speeds maintaining the temperature rather than frequently starting at full power.

When running at lower speeds, variable-speed motors use only a quarter of the energy used at full speed.

Now that you understand that single-speed motors launch to full power frequently, it is easy to grasp that they also have to endure more surges and stress. Since variable-speed motors increase speed gradually, they require less maintenance and have a longer life-cycle.

Variable-speed motors tend to be of higher quality than single-speed motors.

In addition to energy efficiency, variable-speed motors have much lower sound levels allowing you to enjoy your conversations. Having a variable-speed motor running at low speeds creates a sound similar to a humming of a refrigerator. Compare it to a single-speed device that starts and stops throughout the night creating noise each time it cycles back on. A variable-speed motor in your heater lets you have a good night’s sleep.

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