Insert vs Stove -- firebox

[mj5001]

It's hard to tell but it looks like the Drolet fireplace insert I'm looking at has a much thinner guage of steel the their stoves do. Maybe it's just the housing surrounding the firebox, but is this possible? Is it typical for an insert to have thinner guage material making it easier to install etc?

Their stoves are a nice 5/16" steel box.

 

[mellow]

Inserts have 2 layers, the inner firebox and outer shell. Most inserts will have a top that will be thick steel. The shell is for the area for the blower to blow air through.

 

[begreen]

Exactly right. Inserts have to convect. The outer shell is to direct the heated airflow out of the fireplace.

 

[DAKSY]

Generally, an insert will have a surround which is a much thinner
gauge steel than the firebox body, unless you're talking about
a cast iron FPI. They usually have a cast iron surround. The Regency
FS Stove bodies & FPIs are BOTH constructed from 5/16" plate...