Replacing a radiator advice please

jim881

Hi all,
I am just about to replace my radiator in one of my bedrooms and wondered if I could have some advice please.

I have measured my old radiator and it is 800mm by 600mm. Now I have measured this across the front and not from the pipe outlets so my question is : will a 800 x 600 fit my existing connections?

Kudox Premium Type 11 Single Panel Single Convector Radiator White 600x800
from screwfix

Secondly, I have a combi boiler system which I know once I have taken the radiator off and fitted the new one I will have to fill it, top up the system, bleed it and then re-top it up. Will I need to add inhibitor to the system and if so how is it done?

Cheers

Jim

Crinkmeister

The new rad should fit. If you look on the Kudox website, there is a diagram showing the rad dimensions. You should check the wall to radiator inlet dimension as well. Hopefully you won't need to change the brackets. I am assuming you will isolate the old rad before removal and are not draining down the whole system? If so, just connect up new rad flow and return and add inhibitor using a funnel and some tubing into one of the top inlets before fitting blanking plug and airvent. Open up the valves and bleed the air out and repressurise system to 1 bar when cold. You will possible need to bleed again after running the system. Don't skimp on the ptfe tape on the rad tails! Good luck.

A.Penny.Saved

Make sure that you get the measurements the correct way around. I doubt that there are any 800mm tall radiators but don't take any chances.

You can get small funnels with a threaded connector which screw into the bleed valve where you can the pour the inhibitor. If you intend replacing the inhibitor in future it might be worth getting one. Otherwise you might be able to make do with a self made version as already suggested.