Inhibitor ammounts

Hi just replacing an old boiler on a Boilermate II system,going to fit a Baxi Solo HE.How much inhibitor should be added.there are 10 radiators.
Also which is best?normally use sentinel 100.thanks

I like Sentinel X100 too.

You need to add two at least. It dendls on the capaicty of the Boilermate. Check the data label for the volume of water in yours, and add enough inhibitor to treat that volume is addition to the one litre you would add to protect the rads.

Cheers, Mike