The Durability of Gas-Escape Channels of Boiler Installations by Modern Heat-Utilization Technologies Application Increase - N. M. Fialko; V. G. Prokopov; R. A. Navrodskaja; A. I. Stepanova; G. A. Presich; S. I. Shevchuk; Ju. Glushak (Energy Technologies and Resource Saving, 2011)