ANTI-ICING DEVICE FOR DRAIN SYSTEMS OF BUILDINGS

摘要

FIELD: construction.;SUBSTANCE: device comprises an air duct with a coolant - warm air from a ventilation duct or a building basement moved along the air duct due to natural draught, and a heating element with an exhaust hole, at the same time the exhaust hole is arranged as multi-channel to ensure needle flow of the coolant.;EFFECT: reduced operation costs for roof maintenance.