Design
The heater uses a fully-modulating, forced-draft burner that fires into the side of the heater shell. Cold water is sprayed into the top of the shell and migrates downward through a bed of stainless steel rings, called packing. Packing temporarily slows the flow of water and provides surface area for heat transfer.

As water migrates downward through the packing, hot burner gasses flow upward through the falling water. The water is heated by direct contact with the hot burner gasses. Heated water flows to the bottom of the shell where it accumulates momentarily.

Hot water is pumped from the collection area at the bottom of the shell directly to the concrete mixing equipment or to other applications.

Structural components, piping and internal parts are made from stainless steel. Controls are automated using PLC (Programmable Logic Controller) technology.