How do you Season Cast Iron?
There are No Warranties on cast iron parts. All cast iron parts should be seasoned before using in a normal coal or wood stove fire. This can be done in two different ways.
The first way is three to five small kindling fires in the wood stove. These fires should be small and in between each one the stove should cool.
The second way for seasoning cast iron is taking the new piece of cast iron and placing it into your oven. Start the temperature of the oven at 325º and then every 30 minutes go up 25º until the oven reaches its highest temperature. Do not touch, cast will be HOT. Then let the parts cool.
After either of these steps are done, you are ready to start burning your stove.