As a protective lining of hydraulic ash removal and bottom ash removal channels are used stone-lined prefabricated collapsible chutes, shaped plates of chute channels, manufactured in accordance with
TU 08.11.12.119-28-76490484-2020. Gutters have found application in power engineering. Due to their small size and weight prefabricated stone-cast gutters are very convenient for installation, especially if there are no lifting mechanisms at the construction site or other place of channel lining works.