Hydrotherm 02-5837 Damper Freon Normally Open Fail-Safe: The N/O

Normally Open Fail-Safe: The N/O configuration is ideal for heating applications where maintaining flow during a signal failure is a safety priority

6 Amp draw and thermal protection

and baseboard radiation where precise fluid management is required

While these units have secondary adjustment screws

Veteran technicians utilize this part for its reliability in high-cycle environments

Hydrotherm 02-5837 Damper Freon Normally Open Fail-Safe: The N/OEnsure peak efficiency in residential heating systems with the Hydrotherm 02 5837 Damper. This 7" vent damper is a critical component for Hydrotherm boiler parts, specifically engineered to minimize standby heat loss. By closing the flue when the burner at rest, it maintains higher internal temperatures, reducing frequent cycling and lowering energy consumption. The unit features a robust 62" cable, providing the necessary length for flexible