What happened to my woodstove?

Hi, I am only familiar with non-cat stoves and this is a VC Defiant Encore. I cannot understand what this was supposed to look like or what happened (like this when we bought the house). Any ideas? Thank you!

Hi Sunny,
A lot of woodstoves have a firebrick liner that both protects the metal body of the stove and helps to hold some heat as thermal mass.
They are considered a wearable part that need to be replaced every so often. Yours look like they fit this bill.
You can purchase firebrick 'splits' at hardware stores, masonry yards, woodstove shops, online.....  

Hi Sunny;
It looks to me that your wood stove is about shot.
The poor thing was run hot, and metal is spalling.
As Gerry stated, firebricks could prolong its life, but in the long run you will want to replace it.

A used box stove in better condition is the fastest, cheapest way.
A J-Tube RMH utilizing cob and whatever low-cost materials are available is not as fast, but another way.

I, of course, recommend building a full masonry Batchbox stove; home built the cost is $1500-2000,not cheap.
Or not recommended by me... Brand new catalytic wood stoves are readily available for $4000 +