How to Install a Radiator Thermostat

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Less than 1 hour

Difficulty: Easy

Just be careful when removing the old air vent.

In this video, This Old House plumbing and heating contractor Richard Trethewey explains how to install a radiator thermostat.

Steps:

1 Close the valve at base of radiator.
2 Turn off the room's thermostat.
3 Carefully unscrew the existing air vent from side of radiator.
4 Put Teflon tape on threads of new thermostatic steam valve.
5 Thread new steam valve into radiator; tighten with adjustable wrench.
6 Apply Teflon tape to threads of old air vent.
7 Thread old air vent into top of new steam valve.
8 Open valve at base of radiator.
9 Turn on the room's thermostat.