If I lease my primary residence do I have to change the loan?

[Diane Stinebaugh]

Here's my story.  I have lived in my 1,600 square foot house for 16 years.  Everything about it is perfect for families including the elementary within sight.  I would like to move out in to the country and lease the house I'm in right now.  I might want to move back to this house after a few years, who knows?  so, would I have to get a different loan if I lease my house? or could I keep the loan I have?  I just refinanced for a great deal and should have it paid off in 10 or so years. 

appreciate any insights!