At nearly one million pounds, the boiler delivered to a major steel manufacturer in the Midwest is one of the largest ever shop-assembled in the United States.

Indeck Keystone Energy, based in Erie, Pa., delivered the colossal custom-engineered watertube D-type package boiler by both land and sea. The design included provisions that would allow the boiler to be lifted via a heavy haul multi-axle truck equipped to travel over the road and onto a barge for water transport.

The unit included 100 percent tube and membrane furnace and sidewalls to increase boiler life while reducing overall maintenance. Engineering took into consideration combustion, emissions and optimization of boiler heating surface and tube spacing for enhanced thermal performance.

 The boiler manufacturer’s lengthy history with large custom-designed specialty units and its ability to offer shop assembly of the boiler module led the customer to select the company, says Chris Petcos, Indeck’s COO, noting that Indeck has extensive experience in designing boilers firing low BTU fuels such as blast furnace gas, coke oven gas and landfill gas.