I've removed and installed many gas hot water heaters before but this one has been giving me grief since yesterday. My tenant called me to let me know they had no hot H2O. I went out and got the pilot lit, kept it lit for about a minute, turned the knob to on and slowly began to turn the temp knob to it's proper setting when all of a sudden it was like there was a tiny surge of gas. The little glass viewing window got all fogged up and the flame went out. I checked the gas shut-off on the side of the building and it was still on. I have since tried 2 more times to light this brand new heater and it keeps flashing itself out when I try to turn up the temp control knob. I installed it about a month ago and this all just started yesterday..... I'm not trying to launch myself into orbit so that's about as much as I'm gonna put into it.... any suggestions.... anyone? :sad: