It's for sale here (only the upper/lower exhaust circulating furnace). You can ask.

Because you are hard to find! ! !

The price is even harder to find. The following is the contact information:

Chunguang Barbecue Equipment Factory, Yuhong District, Shenyang: +86-024-86 170877 E-mail: 024-86170877 @163.com Postal code:1kloc-0/003/