Boiler water treatment

I am searching for a water treatment and I came across this product:
Wood Boiler Solutions LLC "Treatment Solution 101™"
has anybody used it? any comments?

1 quart @ 24.95 required per 200 gallons of filled water.

I want to treat 2,000 gallons, so that is $ 250 to start with and I dunno how long
it lasts...in an open system.

http://www.woodboilersolutions.com/solutions_treatment.cfm#628

I've purchased from them and was pleased with the product and the shipping. I used it in a Central Boiler and the lines look clean when I replaced a cir pump.

Cozyheat also carries it, check with them as they might be able to get it in larger quanities.
leaddog

What is the chemical makeup of the treatment solution? I know the CB stuff is composed of potassium hydroxide and sodium nitrite.