I am replacing a wood burning fireplace with a gas fireplace, but in order to install the new unit into the existing firebox, I will need to raise the header in the wall framing about 18". The wall appears to be a load bearing exterior wall, so I am unsure if a can safely change the framing and move the header (which spans 46")? What do you think?
I want to convert my fireplace back to it's original state, from gas back to wood burning. Where do I start?