Removing fireplace backing bricks

[CarbonNeutral]

I am trying to decide which insert to put into my fireplace. One of my problems are the bricks that line my existing fireplace - see picture. At the bottom, my clearance to the front is 18", but that is radically reduced as the bricks curve in towards the top of the fireplace. We will be in this house for at least another 15 years so I have no problems destroying this as its use as a fireplace. Can these bricks be removed? What are their typical dimensions? (thickness)

 

[Wood Heat Stoves]

for some reason the pic isn't visible...
repost pic for help!

 

[CarbonNeutral]

Trying again with the pic.

 

[Pagey]

I can see both just fine.

 

[Wood Heat Stoves]

only the second pic is up for me...

do you mean, can the bricks under the damper/ smoke shelf be removed? to give vertical room for liner etc
yes, they are not structural

have a local company (or two!!) come out to give some quotes, they can tell you more.....

 

[CarbonNeutral]

Yes, the white bricks, not the red ones. I need the extra depth that will give me.

 

[Wood Heat Stoves]

up to your installer/ county building dept as which bricks are considered structural.....