Smudge Pot
Oil-burning heaters used to prevent or reduce frost damage in orchards and vineyards. Typically consisting of a wide base topped by a chimney, smudge pots may be lit when frost threatens. They offer some protection by creating air currents that can disrupt settled colder air at ground level. Due to their consumption of oil and smoke production, as well as labor requirements, use of smudge pots is in decline in favor of other frost-protection methods such as wind machines and aspersion.
