Is there any way to slow the deterioration of Entran II tubing?
Yes. A two temperature delivery system can be installed. A boiler needs to operate at 140 degrees or hotter to prevent harmful condensation in the combustion chamber. By installing a mixing valve, secondary pump and control wiring, we allow the boiler to operate at the proper temperature, but deliver water to the Entran tubing as cool as 110 degrees. This will significantly increase the life of Entran II tubing. However, the house may be difficult to heat during the coldest weather. We’ve heard about certain chemicals that some contractors are adding to boiler water, but we do not recommend them.
