Your new furnace will bring in and exhaust, or vent its own air. An HRV draws in outdoor air, and exhausts indoor air, transfering heat from one to the other, and distributes the air to your living spaces, through your HVAC system. Some even pick up heat or cooling from the earth by running ductwork underground.
I must admit I dont know, clearly, what they mean by dedicated and non dedicated. I will ASSUME that dedicated refers to being included into the HVAC system serving the entire home, and nondedicated meaning that it would be ducted to a specific area, kitchen or bathroom.
If in your area, or by code, you are required to ventilate, or draw in outdoor air, an HRV is an excellent idea. If I am correct, go with the non dedicated.
Wish I could be more help.
Last edited by 8 Ball; 07-18-2008 at 12:15 AM.