What is the Firebox Volume of the PE Pacific

Good morning all, I have searched everywhere I can think of and nowhere can I find the firebox volume of the Pacific Energy Pacific Insert. I am looking to have an insert installed and it is between the Avalon Ranier and the Pacific. I like the way the pacific fits in my my fireplace best because of the taper towards the back. If however it has a very small firebox then it is not the unit for me. I think as it is a medium size insert it should be around 1.8cf I just need to be sure before making the investment.

Thanks
Dan

Link: http://www.chimneysweeponline.com/wicompha.htm

Looks like 1.97 cubic ft