replacement stove - odd setup inside

[hkopp]

Just picked up a large woodstove, and noticed it has a 1/2 " threaded pipe coming out the back. Looking inside it has square tubing and a flat plate in the middle. There are two slots in the back of the stove for the tubing. Can someone tell me what exactly this is for?

 

[begreen]

homebrew secondary combustion?

 

[hkopp]

The square tubing looks original to the stove, but is only open in the back so I dont understand how they could be used for blowing air for heat. The center piece might be original too...maybe not. I need to try to take the center part out and inspect it...but was hoping this might look familiar to someone.

 

[hkopp]

Well I was able to find the text to the person I bought it from, he said it was an oil setup! I couldnt speak to him long so I am not sure if it was just a drip or forced with air, but plan on researching more now and test it with just oil. Any threads here on that, or sites that have a lot of info on oil burning setup?