Ironraven,

Sorry, but the chemist in me has to correct your statements about "all salts contain chlorine" and the stuff about ammonia. Technically, a "salt" is just the ionic reaction product of an acid and a base. This encompasses things from common table salt (sodium chloride) to organic substances like cesium acetate.

As for ammonia, are you thinking that comes from the urine? Actually, the main nitrogen-bearing substance in urine is urea, which won't have any hazardous reactions with the heater.

Third, even if ammonia was present in the urine there would still be no hazardous reactions with hydrogen gas (or chloride ions). Now, if you have chlorate or chlorite ions (chlorine bonded with different amounts of oxygen) present, ammonia will react to release chlorine gas. This often occurs when people mix ammonia and chlorox bleach to try and clean something.

Hey, if we can have technical discussions on EMP and trigonometry, why not chemistry? <img src="/images/graemlins/smile.gif" alt="" />

-Blast (named by fellow chemistry majors after blowing a 10" hole through his dormroom desk)