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Trv's not tv
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Yes it would, all TV have frost protection so do not close fully off, need to either put on the decorators cap or cap the fitting where the rad has been removed.
Much better to drain the system. In my opinion.
Trv's not tv
There are no TRV's fitted anyway so no need to worry about that.
There are no TRV's fitted anyway so no need to worry about that.
I'll be carefully removing the rad by undoing the valve nuts and capping the ends. Tilt the rad up and empty contents into a bucket.
Thanks all.
We’ve all been there fella!!I recently drained my system down to move the radiator in a bathroom.
Here's my tip: if you have drain valves like this View attachment 95283there will be a rubber washer in sideView attachment 95284 which if the valve is of any age may well have perished. When you re-fill the system the valve may not seal and drip no matter how much you tighten it. Then you will have to drain the system again and replace the washer. Have a washer to hand and replace it after the first drain. You can guess how I come to be making this recommendation.
I recently drained my system down to move the radiator in a bathroom.
Here's my tip: if you have drain valves like this View attachment 95283there will be a rubber washer in sideView attachment 95284 which if the valve is of any age may well have perished. When you re-fill the system the valve may not seal and drip no matter how much you tighten it. Then you will have to drain the system again and replace the washer. Have a washer to hand and replace it after the first drain. You can guess how I come to be making this recommendation.
I would add inhibitor after a full drain down.If you look under the boiler in the cupboard, you will see two 15 mm copp. pipes, one is hot water out the other is cold water in, turn the slotted screw 90 ° to hoizontal this will shut the cold water supply and the cold màin in via the filling loop, or their could be a similar valve on the filler,. Put a hose on the drain valve on the lowest rad and drain the system, fill it up cold to 1 bar, job done. Good luck.
No!!!use normal PTFE tape, if your fitting new half inch valves on an old rad the old female rad thread may appear loose/ floppy, just wind a few extra turns of PTFE on and fully tighten it will be good. You can use up to fourteen turns no matter. Do not use thicker gas PTFE tape or Boss white paste. Unless you are using hemp and paste. Your new towel valves if no gland nut could be ground in or have o ring either way it's ok. To balance the system when replaced fill and vent the rail, shut the flow side from the boiler open return valve on rad fully, light boiler let system heat up, when hot slowly open rad valve on flow, when you feel hot entering rad stop opening and vent rad till full, that's it. Never fully open both valves on towel rails or indeed any rad or you may find some rads don't heat. ie. the system becomes unbalanced. Good luck. Take your time you'll be ok.2 more questions on radiators for the professionals
Every time I've replaced a radiator over the last few years the 1/2" BSP threads in the radiator have seemed too big for the valve stub and needed masses of ptfe tape to seal. I suspect this is a common problem and wonder how the professionals do it. Is the thicker gas spec ptfe tape a better bet or do you use a jointing compound.
Plumbers dental floss.We don’t use PTFE anymore.
View attachment 107438
Most plumbers I know don’t have teeth!!Plumbers dental floss.
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