How To Light Gas Wall Heater. If done properly, it is safe and takes around 2 minutes. The pilot light probably went out.
So you walked into your apartment and smell gas.
Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. The thermocouple is a simple safety device that holds the valve open only when its hot. Press and hold the pilot button 3. Gas water heater installation may seem like a job for the pro's, but actually, it's not as difficult as you may think.