What is the hot water value of 1 EDR when rated at 170 °F?

The hot water value of 1 Equivalent Direct Radiation (EDR) at a temperature rating of 170 °F is typically standardized at 150 btu/hr. This value is based on the performance of hot water systems and their capacity to deliver heat effectively at that specific temperature.

In the context of steamfitting and hydronic heating design, engineers and technicians often use EDR as a measure to calculate the heating needs of a space. Knowing the hot water value allows professionals to properly size equipment and ensure that systems are efficient and meet the requirements of the residential or commercial applications.

The other temperature ratings provided may correspond to different btu values, but at 170 °F, 150 btu/hr is the accepted standard for 1 EDR. This plays a crucial role in ensuring accurate heating calculations and successful installations in various heating applications.