Heater Hose Hook-Up:

[40ford]

I have seen so many different ways heater hoses have been hooked up.Does it really make that much difference if both are hooked up on same side of engine?I realize the top nipple on heater should be hooked to top one on motor correct?Reason I am asking I am trying to route these hoses in the most practical way.Here is pictures of a 40 engine with heater and this looks like an easy way,but is it right and will the heater work correctly?