Central Heating inhibitor - or lack of

[garrymum]

Hi

I currently have no inhibitor in my CH system as I drained the system to move a radiator the other week. What is the maximum length of time I should run the system without inhibitor as I will be removing a large radiator in a month to decorate. Is it ok to run without until then, or should I add now and top up if necessary once the large rad has been put back on?

 

[seco services]

many systems have never had any.
be ok.

 

[JohnD]

but when you take off the rad, you will not need to drain down, you just remove the rad from its valves

In which case you could add it now.

If like me you are very mean you could empty the rad into a bucket, filter out dirt and sediment, and tip it back in the F&E (if you have one)

OOI, how dirty is it?

 

[garrymum]

but when you take off the rad, you will not need to drain down, you just remove the rad from its valves

Yeah I know. Just means the solution would be diluted when it re-fills. I also want to flush it out after re-fitting the radiator so will wait.

 

[JohnD]

how dirty is it?

 

[garrymum]

how dirty is it?

Black

 

[JohnD]

Then run some Sentinel X400 through it to loosen the old sediment before you flush it out. You can leave it circulating for about 4 weeks.

It will cost you about £15

 

[simond]

Only if you leave the heating on for four weeks....... difficult in this weather.

 

[JohnD]

how about running the pump with the boiler stat turned down for a while?

Even if the heating isn't running much, it is sure to help.