Abstract: There is disclosed a system and method including to provide consumer products and services for sale. The system includes a computer readable database and a computer processor coupled to the computer readable database. The computer readable database is configured to store account data. The account data can be, for example customer needs, types of product preferences or service preferences of the customer, addresses, phone numbers, consumer product specifications, etc. The computer processor is coupled to the computer readable database. The computer processor is configured to receive an order from a customer, input the order into an item catalog, and market the order.

Abstract: A vapor generator vaporizes a motive fluid which is used to drive a multivaned rotary expander. The expander is the prime mover for an electric generator which may be an alternator. Exhausted vapor from the expander (or if the expander is not being operated, vapor from the vapor generator) is passed through a heat exchanger where a fluid, e.g. air or water, is heated. This heated fluid is used for space heating. The expander may also be connected to drive the compressor for an air conditioning system. Alternatively, an electric motor may be employed for this purpose.