I believe these systems would accomplish the following:1) Allow you to put the cost of heat (and A/C) on the tenants.2) Offer the tenants a less expensive solution than electric heat.3) Offer the tenants relatively efficient A/C as compared to the cost to run window units.4) Cost you a heck of a lot more than electric heat in regards to your initial capital outlay, but I don't believe the maintenance cost is much.This is just an idea that I know has been gaining popularity. 

"Condotels" are popular in some parts of Florida, where every condo in the complex is available to rent on a short term basis and sometimes (as an owner) your HOA fee will help cover the cost of the HOA to manage the listing for you.

That said, the stress and change of a move may not be the best choice right away.

In no particular order I have listed some of the most popular markets for out of state investorsCincinnati, OhioDayton, OhioToledo, OhioYoungstown, OhioCincinnati, OhioMemphis, TennesseeBirmingham, AlabamaKansas City, MissouriSaint Louis, MissouriIndianapolis, IndianaDetroit, MichiganErie, PennsylvaniaLouisville, KentuckyMilwaukee, WisconsinJackson, MississippiEach of these markets is popular with turnkey investors because of the low barrier to entry, high rental demand & high rent to price ratio.

Disadvantage is that although a popular location, overall prices tend to be higher at purchase and do not appreciate as rapidly as the other locations.

In no particular order I have listed some of the most popular markets for out of state investorsCincinnati, OhioDayton, OhioToledo, OhioYoungstown, OhioCincinnati, OhioMemphis, TennesseeSaint Louis, MissouriIndianapolis, IndianaDetroit, MichiganErie, PennsylvaniaLouisville, KentuckyMilwaukee, WisconsinJackson, MississippiEach of these markets is popular with turnkey investors because of the low barrier to entry, high rental demand & high rent to price ratio.

If the home wouldn't cashflow fully rented out, then I'm not that sure it's wise choice. 

@Rachel Pitts Since you live in and near a popular beach destination, I would focus on vacation rentals.

Time will tell if i made the right choice!

The choice for Brazil is not the subject of my question.