We have narrowed down our heat pump decision to a Trane XR15. The Manual J load calculation recommends a 3 1/2 ton size. One company recommends a 3 1/2 ton Condenser and 4 ton air handler to gain more efficiency in distributing air. In addition they recommended changing to a 10 KW heat strip. Just as a note, we live in Tampa, Florida where it is extremely humid, and we are interested in removing as much humidity as possible.

The second company recommended the 3 1/2 ton condenser with same size air handler and a 5 KW heat strip.

My question: What are the pros and cons of a larger air handler than condenser? Also, what are the issues with increasing to a 10 KW heat strip?

Thanks very much!