The Solar Korsi Modernized ancient Iranian Heating Systems

Published: 15 June 2026| Version 1 | DOI: 10.17632/jtfp55vptn.1
Contributor:
Kaveh dimitri Salahi

Description

The korsi (Persian: کرسی) is a centuries-old heated low table: a frame holding a heat source, covered with heavy blankets, under which people tuck their legs and lower bodies. It concentrates warmth into a small shared pocket of perhaps one to two cubic meters instead of trying to heat an entire room. This is why it works on very little power. For generations the traditional korsi used a pan of charcoal embers. That living flame became the heart of the winter room — the place where families gathered, where stories were told, where bodies found rest against the cold. Yet the same flame that gave warmth also took lives through carbon-monoxide poisoning and fire. The single most important improvement in this design is replacing combustion with a low-voltage electric element charged by solar power. An electric element produces no flame, no smoke, and no carbon monoxide whatsoever — the heater needs no ventilation. The result keeps the proven warmth of the korsi while removing the deadly hazards of burning fuel. It is the ancient hearth re-patterned: the same concentration of care, now fed by the sun's own generosity rather than by burning what was once living. Because it heats people and not air, it needs only modest power — making it realistic to run from a single salvaged battery recharged by a small solar panel, even where grid power and fuel are gone. This is not merely technical substitution. It is an ethical realignment. Sunlight — the original source of all warmth on Earth — is transferred by the panel into current, translated by the element into radiant presence, and transformed, through the blanket's gentle containment, into a pocket where human bodies and relationships can endure. In places where winter arrives on top of displacement and loss, this small translation of energy into care can mean the difference between suffering that continues and suffering that is interrupted.

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Renewable Energy, Building Heating

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