Tjernlund 950-1031 Power Venter Fan ProverTjernlund 950 1031 Power Venter Fan Prover is a Type Fan Prover that delivers reliable verification for your power venting system. The Power Venter Fan Prover is designed to work with HS2, HSUL 2, HST 2, and HS115 2 power venters and includes a sensing tube kit for precise sensing. Built for contractor grade performance, it performs quick, repeatable tests to verify vent draft, airflow, and safe operation. The compact unit is durable and easy to

68 in D x 6 in H) suitable for mechanical rooms and duct installations

Use it as a reliable replacement part to keep heating and cooling performance consistent year-round

Rated at 3450 RPM and 100 PSI

Certified to ANSI Z21

Ideal for residential applications

quick turnarounds

Overall length: 8-1/4"

This valve provides controlled opening (3–25 seconds) and closing (2 seconds)

The AM-116 fits seamlessly into existing actuator assemblies

Designed for easy integration with a 1 inch nominal size and female threaded end connections

The TS114F delivers accurate readings that help optimize furnace and boiler operation

This guard is a cost-effective way to extend the life of your fan and minimize service calls