Do the hearth and firebox need to be perfectly level to install a wood insert?

[Sharkeys78]

I'm planning on installing a flush wood insert into our 100 year-old fireplace. The entire fireplace (including firebox and hearth) have settled forward at a pitch of about 3/8 per foot. Can I still install the insert as is, or will it need to be leveled? Are there codes that prevent installing in un-level situations like this?

 

[bholler]

I'm planning on installing a flush wood insert into our 100 year-old fireplace. The entire fireplace (including firebox and hearth) have settled forward at a pitch of about 3/8 per foot. Can I still install the insert as is, or will it need to be leveled? Are there codes that prevent installing in un-level situations like this?

Most inserts have leveler legs. But you should really find out why it has settled it could be a potential safety hazard

 

[Sharkeys78]

Most inserts have leveler legs. But you should really find out why it has settled it could be a potential safety hazard

Thanks! we addressed the settling years ago. I wonder if leveling up the front of the insert will make for an unsightly gap at the front.