I have been looking at the web site www.aridirectory.org which was recommended earlier to show combinations for the systems. I am having trouble getting the information out of the web site.

For example, I get many models for the Lennox XC15 but it does not give any recommendations on furnaces that will work with this unit. Lennox own web site seems to take be to links to choose the AC and then a furnace but not a combination of the two.

What is the easiest way to evaluate what systems are out there for my home? I would like to go with a dual fuel (gas/heat pump) for heating and then the AC. I am just trying to be a better informed consumer when I talk to the contractors.