Central Heating System Inhibitor

Does your central heating system make some strange noises? Do your radiators heat up at the top but never at the bottom? Could be your radiators are full of corrosion and scale which reduce their efficiency and the gas given off can cause knocking and rattling.
But don't give up. You could attempt the job yourself if you have a medium skill level and a good friend. To be really thorough you should remove each radiator, drain out the rubbish inside it in the garden then flush through with the hosepipe. A mucky job but think of the money you're saving. To flush a central heating system can cost £600+.
When you've done each radiator and refilled the system then put in system inhibitor in the header tank and enjoy a warmer (and quieter) winter.

http://www.youtube.com/watch?v=BI3S8B7f_vY go to this link for a visual and helpful tutorial
 Mortens stock system inhibitor online and in store.