A furnace heat exchanger keeps dangerous gases out of the air circulating in the building. It's a must-have on any furnace that burns gas or oil.

Thunder-like booms rippled through Southeast Boise this week, shaking homes, rattling windows and leaving dozens of nearby residents wondering, “What was that?” Some figured it was related to the work ...

Community says its proposal will ensure the continued operation of two blast furnaces while two new electric furnaces are constructed.