FIELD: ventilation.
SUBSTANCE: invention relates to ventilation and air conditioning. Ventilation shaft includes exhaust chute and heating element attached to its head. Exhaust shaft is made of two separated electrical insulation chutes of semicircular or other cross-section of dissimilar conductors or conductors and semiconductors and solder their end parts to form a thermocouple shaft, wherein constant electric current is passed through thermocouple-shaft in direction providing heating of junction at its head and cooling of junction arranged inside room.
EFFECT: ventilation shaft allows to protect its head against frost and to reduce humidity of indoor air of the room.
1 cl, 1 dwg
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