Heat is used in numerous ways in low-tech as well as high-tech societies. Producing heat often causes air pollution and uses large amounts of energy. One of the most significant use is maintaining indoor temperatures warm-enough for health and wellbeing in cool climates. Effective thermal insulation and passive designs can significantly reduce the need for heating.
Other important uses include:
- Cooking, drying, and preserving food.
- Pottery and glass working.
- Metallurgy
- Sterilizing medical impliments