Heat exchanger for outdoor wood boiler

[liberty]

I am going to install an a CB e1400 with a heat exchanger so I can keep my house pressurized. The dealer gave me a price of 700 for the heat exchanger. Searching around I found a Brazetek branded one rated for 250k btu for $200. Am i missing something or is the CB one much better. The Brazetek is 316l stainless. Any reccomendation?

 

[nparch726]

Got mine on eBay for about $200 bucks, dealer was asking around $600 for the same thing. Onlly had mine up and running for 2 full winters now, but I haven't had any problems with mine.