Additionally, it does not apply to rotable, temporary, and standby emergency spare parts"Essentially, an appliance or other equipment installed in a building is considered Rotable and Temporary when installed in a UOP (defined as a building, in this case).  

I once read that you should only invest your money after having a "cushion" saved up for these kinds of emergencies. 

Each dwelling unit must have one main egress door, as well as each sleeping room, basement and habitable attic must have a means of emergency escape (door or egress window).Additionally, the code (IBC) for 3+ units is much, much more strict than the code for 1-2 unit buildings (IRC). 

@Chris Maudlin check out Todd Dexheimer's write ups on emerging markets and his opinion on good markets to invest in through 2020:https://www.biggerpockets.com/blogs/10145/66160-ho...https://www.biggerpockets.com/blogs/10145/68178-to...And then David Green has the book Long-Distance Real Estate Investing that would be a good start as well...https://www.amazon.com/Long-Distance-Real-Estate-I...

That’s for emergency purposes or unforeseen circumstances.

@Michael McInerny, Finally enough details emerge!! 

You need cash to handle emergencies (car accident, job loss, etc).

They are extremely efficient to run and you don't have the emergency heat issue below +20F like you do with an air to air.There is nothing wrong with flex duct systems as long as they are installed right.

Dwayne - If I had to correct all of the grammatical and punctuation errors on the forums, I'd be doing it full-time.Sadly, as instant messaging emerged as a form of communication, the proper use of the English language declined.

Don't get in a hurry, you should have a good down payment and an emergency fund for a backup.