Noncondensing
Noncondensing refers to heating equipment, particularly boilers, that do not condense water vapor in the exhaust gas to recover latent heat. In these systems, combustion heat is transferred to the heating medium, and the exhaust is vented at a higher temperature since no condensation heat is captured. Condensation does not occur within the heat exchanger.
Efficiency and terminology are commonly described using AFUE, the annual fuel utilization efficiency. Because latent heat
Advantages of noncondensing boilers include lower upfront cost, simpler components, and compatibility with older venting systems.
Noncondensing boilers remain common in older buildings, retrofit scenarios, or regions where cost considerations outweigh efficiency
In broader usage, noncondensing can describe processes or devices in which condensation of vapor does not occur,