The thermostatic radiator valve is designed to regulate the water that flows into the home's water heating system. Occasionally, the valve can wear out or stop working, requiring a new valve to be installed. The valve is attached to the side of the radiator with a spud connection. Using a few common shop tools, installing a thermostatic radiator valve is a job that you can complete in about an hour or two.
- Skill level:
- Moderately Easy
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Things you need
- Garden hose
- Pipe wrench
- Pipe dope
- Single-strand wicking
- Pipe sealant
- Drill and bit
Remove the cover from the radiator and turn off the water to the device. Attach a garden hose to the drain spout and run the other end of the hose into a sink or tub.
Open the drain valve and drain the water out of the radiator. Close the drain valve when the tank is completely empty and unfasten the thermostatic radiator valve from the radiator tank with a pipe wrench.
Disconnect the spud connection from the end of the radiator tank by loosening the connection with a pipe wrench. Unfasten the thermostatic radiator valve from the threaded outlet pipe with the pipe wrench.
Place a layer of pipe dope around the threads of the outlet pipe and wrap some single-strand wicking around the threads. Fasten the new thermostatic radiator valve to the outlet pipe with the pipe wrench.
Apply a thin layer of pipe sealant around the threads of the spud connection and secure the connection to the side of the radiator with the pipe wrench. Attach the new thermostatic radiator valve to the spud connection with the pipe wrench.
Drill a hole in the side of the radiator cover with a drill and thread a sensor wire through the hole. Attach the sensor wire to the top of the thermostatic radiator valve and secure the other end to the sensor.
Fasten the sensor to the side of the radiator cover, using a screwdriver to attach the screw. Place the radiator cover back over the radiator and turn the water supply back on.
Tips and warnings
- To avoid burns, drain the water from the radiator before attempting to install the thermostatic radiator valve.
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