Scale build-up and cracked heat exchangers significantly reduce - and prematurely end -- the useful life of most water heaters. Scale build-up on the surface of the heat exchanger diminishes its ability to absorb and transfer heat. Cracked heat exchangers typically result from thermal shock caused by a rapid expansion or contraction of the material brought on by sudden, drastic temperature changes. Rather than leave customers to fend for themselves with water softeners, chemical treatments and extensive annual maintenance and protective procedures, AERCO indirect-fired* equipment has been carefully engineered to minimize these common problems.

Helical Coils Reduce Maintenance
A helical coil design inhibits scale build up to reduce maintenance and extend the life of AERCO indirect-fired equipment.* The helical shape naturally winds and unwinds as the metal expands and contracts with temperature changes. This movement inhibits scale formation during normal operation and helps to break down build-up on an on-going basis. And since each free-floating coil is only connected to the unit's riser at one end, the design promotes maximum flexibility and reduces stress at the joint.

Materials of Construction Withstand Thermal Shock
AERCO heat exchangers are manufactured from the highest quality materials of construction -- specially chosen to extend the longevity of the equipment and to withstand the force of thermal shock. We are so confident in the durability of our equipment, we recommend thermal shocking as regular maintenance procedure to preserve the superior heat transfer capabilities and efficiency profile of our indirect-fired equipment.

Click here to learn more about the efficiency and cost saving benefits of the helical coil design.

* Not available on AERCO double-wall offerings