I had the previous HydroGen, which sucked ass and is the same thing as the AN unit, even compare the marketing in terms of co2 output and heat and its identical, this unit would hav ethe same issues the first gen hydrogen did, not lighting every time with the water flow. I now have the Hydrogen pro, and it runs constant water flow with electronic ignition. 100% no hassles for me, and I got the "Ice Cap" when I got the Pro, the air coming out is actually as cool as my room:)

Ozzie