For the purposes of this chapter, the term, motor home, means a motor vehicle that is designed as an integral unit to be used as a conveyance upon the public highways and for use as a temporary or recreational dwelling and that has at least four of the following permanently installed systems:
(1) Cooking facilities;
(2) Ice box or mechanical refrigerator;
(3) Potable water supply including plumbing and a sink with faucet either self-contained or with connections for an external source, or both;
(4) Self-contained toilet connected to a plumbing system with connection for external water disposal;
(5) Heating or air conditioning system, or both, separate from the vehicle engine or the vehicle electrical system; or
(6) A one hundred ten--one hundred fifteen volt alternating current electrical system separate from the vehicle engine electrical system either with its own power supply or with a connection for an external source, or both, or a liquified petroleum system and supply.