glass tubing equipment and installations for energy recovery and/or the purification of flue gases, consisting essentially of heat exchangers, waste gas purification lines and neutralization vessels for any type of heating units; glass tubing equipment for any type of heating units for the withdrawal of flue gases and condensate, consisting essentially of chimney linings, flue gas pipes and condensate removal pipes

CHIMNEY LININGS AND WASTE GAS CONDUITS CONSISTING OF SPECIAL GLASS CONSTRUCTION COMPONENTS, HEAT EXCHANGERS AND NEUTRALIZERS