What is the maximum temperature for feedwater when using a deaerating heater?

The maximum temperature for feedwater when using a deaerating heater is 215 degrees Fahrenheit. Deaerating heaters are critical components in boiler systems, designed to remove dissolved gases, especially oxygen and carbon dioxide, from feedwater. This process is vital because dissolved gases can lead to corrosion and other issues in the boiler.

When operating at the specified maximum of 215 degrees Fahrenheit, the deaerator effectively allows for the reduction of these gases while ensuring the feedwater approaches the temperature needed for efficient boiler operations. Higher temperatures might compromise the effectiveness of the deaeration process or could lead to other operational issues, including challenges with material compatibility or safety concerns.

Using temperature limits, such as 215 degrees Fahrenheit, helps prevent excessive steam pressure, minimizes the risk of boiling in the deaerator, and ensures that the system operates within safe and efficient parameters. This option aligns with standard practices and guidelines for boiler feedwater management in hydronic systems.