Thanks very much for the replies, Pat and Al. It seems the red button is for the electronic ignition. I called Comfortzone which is now Hayward. I explained what we were doing to light the pilot and they said it sounded right. First you turn a switch to off, then wait 5 minutes. If you don't smell gas, you turn it to pilot position and while holding it in, you then press the red button several times until the pilot lights. Then hold keep holding the pilot in for 1 min, let go and turn it back to on. We did this 3 or 4 times with no luck. So I called a company that has done work on the heater before and they're coming out tomorrow, $80 just to come out though. But neither myself nor my husband have any experience with gas heaters, so I thought it safer to contact them. What's odd is the heater did turn on yesterday morning, but sometime during the next couple hours, it went out. I hope it's something simple. Anyway, thanks again, I really appreciate it.