How to Remove a Hot Water Radiator

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Remove hot water radiators for servicing.
Remove hot water radiators for servicing. (Image: white radiator image by Ekaterina Sidorenko from Fotolia.com)

Removing a home's hot water radiator is sometimes necessary when servicing the unit, or when remodeling or repainting a room. These radiators are connected to the main hot water boiler by an inlet pipe and and outlet pipe. Valves on these pipes let you cut off the water supply for the radiator and isolate it from the system. Removing a hot water radiator is mostly a matter of disconnecting these pipes.

Things You'll Need

  • Old towels
  • Newspaper
  • Bowl
  • Radiator key
  • Phillips screwdriver
  • Pliers (2)
  • Wrench

Shut off the power for the central boiler. Look for a switch on the boiler and set it to the "Off" position. You can also switch off the power for the boiler at the main circuit breaker. Let the system cool down for about a half-hour.

Line the floor beneath the hot water radiator that you are removing with old towels or newspapers.

Isolate the radiator's hot water supply. Rotate the wheel valve--the valve with the temperature control knob--to the water shut-off position. Unscrew the plastic cap on the lockshield valve at the opposite end of the radiator with a screwdriver. Pull off the plastic cap. Turn the hexagonal nut at the top of the lockshield valve clockwise to shut off the water.

Place a bowl or similar sized container underneath the drain valve for the radiator. The drain valve will be located next to either the lockshield valve or the wheel valve. Drain valves can be identified because they point straight down.

Turn the nut above the drain valve counterclockwise to open it. Insert a bleed key into the bleed screw at the top of the radiator and turn counterclockwise. This will help the water escape faster.

Loosen the coupling next to the wheel valve. Grasp the wheel valve assembly with a pair of pliers. With the other pair of pliers, turn the adjoining coupling counterclockwise until it loosens.

Loosen the coupling next to the lockshield valve. Grasp the lockshield valve with a pair of pliers the same way you did with the wheel valve. Loosen the adjoining coupling counterclockwise.

Loosen any screws holding the radiator onto the mounting bracket. Lift the hot water radiator up and off the mounting bracket.

References

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