Mr heater giving off smell stinging my eyes

I have one of these guys for my garage http://www.mrheater.com/ProductFamily.aspx?catid=45

It's giving off a smell that's stinging my eyes. There web site says its due to part cleaners and such. What the hell! If I knew this I wouldn't have bought it. What should I get now I have a garage i rent but I can't hard wire or use a ton on electricity with out my rent going up. Anyone I upstate by have anything or want to trade for the heater I got ?