Advantages

1. Light weight and compact for very small heat loads.

2. No moving parts, eliminating vibration, noise, and problems of wear.

3. Reversing the direction of current transforms the cooling unit into a heater.

4. Operates in any orientation.Not affected by gravity or vibration

5. Very low cost device for cooling in small appliances

6. Precision temperature control capability

Disadvantages

1. Limited to very small refrigeration loads due to cost.

2. Not suitable for solar due to poor efficiency

3. Heat sinks required to conduct heat to and from the thermoelectric modules become very heavy and bulky as the refrigeration capacity increases.