Ditto to what donn0128 said. If you don't need to have the air conditioning, a 20 amp outlet will be fine.
If you hire an electrician to install a 30 amp outlet at home, make sure they know it's a NEMA TT-30 connector and it's 120 volt. To the uninitiated they bear a strong resemblance to the old style 240 volt 3-prong outlet used for electric dryers. Many have had the misfortune of having an electrician wire them for 240 volt, not knowing the difference, and then they zap most of the electrical system when they plug in their RV.