I just moved into a new house I went to turn on the gas for the fireplace using the key yet I still can't light the fireplace. There's nothing showing me where to turn on the gas flow to the hearthmaster gas fire place. We have a natural gas oven which is working fine. Any ideas?
There should be a thermocouple and gas valve - the thermocouple senses when the fire goes out and turns the gas off. Probably a pilot lite also. Check for a diagram online, here is a link to a youtube example:
second link: https://www.youtube.com/watch?v=CvL_fAFRIW8