Time and cost effective repairs to boiler in-leakage

摘要

Air in-leakage into balanced draft boilers and their associated ductwork has been prevalent for many years. It can be a particular problem for older boilers and boilers which have many tube penetrations through the boiler, furnace and convection pass pressure boundaries. Air infiltration into a boiler setting after the flue gases have been cooled below about 1,600F(ignition point of carbon char) provides absolutely no benefit to combustion and constitutes an efficiency loss.