Open vented systems
For sealed systems, seek the services of knowledgeable heating engineer
There are occasions when the removal of a radiator to hold out work will make life tons easier. Stripping paper, hanging paper, tiling and therefore the like are all a touch tricky to try to with a radiator within the way. It is a comparatively simple process to try to this, provided the right steps are followed.
Closing off the water
Firstly close up the heating and permit it to chill in order that the water within the radiator isn’t too hot.
Switch off the valves at both ends of the radiator. One is going to be an impact valve which should be screwed down clockwise. the opposite is going to be a lock shield valve with a canopy. Remove the plastic cover and use pipe grips or adjustable wrench to shut it clockwise. This valve is employed to balance the quantity of water flowing to the present radiator. Make a note of the amount of turns required to shut it in order that it’s going to be opened by the right amount when refitting the radiator.
Thermostatic radiator valve
If one among the valves may be a thermostatic type, make certain to see that it’s an off position.
It is no good counting on the ‘frost stat’ position, since the space may become cold enough while the radiator is off for this to kick in and permit water to flow.
If your thermostatic valve doesn’t have an off position, it’ll be necessary to suit what’s referred to as a dust cover. These are plastic caps which fit onto the highest of valve in situ of the thermostatic device and are wont to protect it during installation and redecorating work. likelihood is that though, that unless you’ve got been diligent enough to store the cap away safely, you’ll not have one. Pick one from the acceptable size from your local merchant. There are ways of improvising but they’re not wholly reliable and thus aren’t recommended. Undo the thermostatic top by unscrewing its retaining collar which holds it to the valve assembly. this could only be hand tight and straightforward to undo. Use of a wrench may dislodge the valve assembly from the pipework.
Now that both valves are closed, confirm no water is flowing through it. the only thanks to check this are often to use the radiator key to open the bleed valve (armed with a rag to catch the drips). a touch water is going to be discharged then the flow will stop. The bleed valve may be a small key operated air release mechanism mounted at the highest and to at least one end of the radiator.
If the water continues to flow, the valves haven’t been fully closed.
Double check, but don’t force them. If it’s impossible to shut them properly, the system will got to be drained down before proceeding.
Arm yourself with two pipe wrenches, a dustpan, a bucket and a few rags.
Protect the ground round the valves with the rags.
Disconnecting a radiator
Emptying the radiator
Hold the valve assembly itself with one tube wrench in order that it can’t be pulled loose from the pipe feeding it. With the dustpan underneath the joint, use the opposite wrench to slacken the nut which holds the radiator to the valve. As you are doing so, water will begin to dribble out of the radiator into the dustpan. As this becomes full, close the nut again in order that the dustpan is often emptied into a bucket. Reposition it and slacken the nut again. If you open the bleed valve at the highest of the radiator, air will enter and permit the water to flow more quickly.
Repeat this procedure until all the water has been drained, before undoing the nut completely.
Removing the radiator
Now, carefully undo the nut holding the radiator to the valve at the opposite end within the same way.
Close the bleed valve.
Remember, there’ll be a residue of water and sludge within the bottom of the radiator, so ensure there’s adequate protection, particularly with carpets.
Ease the radiator off the valves at both ends. this may require a mild pushing of the valve to at least one side to release the pipe.
Once both ends are clear, lift the radiator up from its brackets and hold it at an angle over the bucket to end draining. Radiators are often fairly heavy, so get an assistant to assist .
Before moving the radiator to store it out of the way while you’re employed , turn it over in order that any sludge in it cannot drip and stain the ground .
As a precautionary measure, you ought to use end caps, available from your merchant, to protect against leakage from the valve until you’re able to re-fit the radiator. These are often fitted to the open end of the valves. Wrap a length of PTFE tape clockwise round the valve thread before tightening the duvet with a wrench. Remember to carry the valve steady with a second wrench.
Edinburgh Central Heating Services offer free estimates and range of skills. A 24-hour emergency plumbing service is also offered. For more information visit www.edinburghcentralheatingservice.com or telephone 0131 5102418