can anyone give me detailed instructions on how to relocate the heat exchanger when I install my twins or perhaps a way around this step. I really don't want to move this thing.

 

you don't really need it. I removed mine and haven't had an issue

 

You should be just fine in Texas. It does really get cold enough there for it to be a concern. Mine has been removed, and it gets to -40* here. I let it run longer in the winter to warm up so it will lock the T/C. Otherwise, no issues at all.

It's a weight reduction, so you'll be faster!