Continuous Variable Heat
(Alteration)(Sun, Weather)
Reversible

Range:  6 yards
Components:  V, S, M
Duration:  Until dispelled
Casting Time:  8
Area of Effect:  20-yard radius sphere
Saving Throw:  Negates

This spell and its reverse, continuous variable chill, cause the affected area to become either warm or cool, the actual temperature defined by the caster, variable within a range of 200C (352F) down to -20C (0F).
This spell was intended primarily as a heat source, not as an attack, although if used against cold-based creatures, they will take 1d6 damage per round per 50C greater than 20C they remain in the area of the spell (20C: no damage, 70C: 1d6, 80C: 2d6, etc.). If the reverse is used against heat-based creatures, they take 1d6 per 20C below 20C (20C: no damage, 0C: 1d6, -20C: 2d6). Continuous variable heat and its reverse are very handy for making cooking stoves, heaters, or refrigerators.
The material components required are sulphur and wood for continuous variable heat, and a clear crystal and ice for continuous variable chill.

