Retro-fit energy exchange system for transparent incorporation into a plurality of existing energy transfer systems

1. A retrofit energy exchange system comprising:

a first connection to a self-contained pre-existing first energy transfer sub-system for removing energy from a living space; said first energy transfer sub-system having a potential excess supply of energy available at said first connection as a result of removing energy;

a second connection to a self-contained pre-existing second energy transfer sub-system for providing energy to a living space; said second energy transfer sub-system having a potential demand for energy;

an energy exchange unit connectable to said first connection to receive said potential excess supply of energy;

said energy exchange unit connectable to said second connection to supply said potential excess supply of energy, wherein said energy exchange unit pumps said potential excess supply of energy from said first connection to said second connection;

an energy exchange unit controller connectable to receive an input from at least one of said first energy transfer sub-system and said second energy transfer sub-system;

said energy exchange unit controller configured to activate said energy exchange unit when said energy exchange unit controller determines from said input, that a present excess supply of energy from said first energy transfer sub-system is available to satisfy at least a portion of a present demand for energy at said second energy transfer sub-system such that any removal of energy or any supply of energy is provided, at least in part, via said energy exchange unit;

said energy exchange unit controller configured to deactivate said energy exchange unit when said energy exchange unit controller determines from said input, said energy exchange unit is unable to satisfy at least a portion of a present demand for energy at said second energy transfer sub-system such that any removal of energy is performed solely by said pre-existing first energy transfer sub-system and any supply of energy is performed solely by said pre-existing second energy transfer sub-system.

2. The system of claim 1 wherein said first energy transfer sub-system is an air conditioning system.

3. The system of claim 1 wherein said second energy transfer sub-system is a hot water heating system.

4. The system of claim 1 , wherein said energy exchange controller is additionally configured to dynamically adjust determinations for activating or deactivating said energy exchange unit based on different types of said input.

5. The system of claim 1 , wherein said input comprises a temperature sensor connected to said first connection and for receiving a temperature of coolant associated with said first energy transfer sub-system.

6. The system of claim 1 , wherein said input additionally comprises a temperature sensor connected to said second connection and for receiving a temperature of hot water associated with said second energy transfer sub-system.

7. The system of claim 3 , wherein said input additionally comprises a temperature sensor connected to a tank of said hot water heating system.

8. The system of claim 2 , wherein said first connection comprises a first valve connected to a coolant line of said air conditioning system and a second valve connected to said coolant line of said air conditioning system.

9. The system of claim 8 further comprising a pump or a pressure regulator in said first connection such that a pressure in said coolant line is substantially the same as if said first connection did not exist.

10. The system of claim 3 , comprising a three-way valve connected between a preexisting heating unit in said hot water heating system and a hot water tank; said three-way valve controllable to either direct hot water from said heating unit to said hot water tank or to direct hot water from said energy exchange unit to said hot water tank.

11. The system of claim 10 wherein said three-way valve is a variable valve such that a first portion of hot water can be directed from said heating unit to said hot water tank and a second portion of hot water can be directed from said energy exchange unit to said hot water tank.

12. The system of claim 3 , comprising wherein a hot water heating pathway of said energy exchange unit is positioned between a cold water supply and a hot water tank of said hot water heating system in order to preheat said cold water before was cold water reaches said hot water tank.

13. The system of claim 3 , wherein said hot water tank supplies at least one hot water demand and wherein an output of said hot water tank feeds back into a cold water supply in order to provide substantially instantaneous hot water to said at least one hot water demand.

14. An energy exchange unit controller encoded with codes for directing a processor to:

receive an input from a first energy transfer sub-system and a second energy transfer sub-system;

to activate an energy exchange unit when said processor determines from said input, that a present excess supply of energy from said first energy transfer sub-system is available to satisfy at least a portion of a present demand for energy at said second energy transfer sub-system such that any removal of energy or any supply of energy is provided, at least in part, via said energy exchange unit, wherein said energy exchange unit pumps said potential excess supply of energy from said first connection to said second connection; and

deactivate said energy exchange unit when said energy exchange unit controller determines from said input, said energy exchange unit is unable to satisfy at least a portion of a present demand for energy at said second energy transfer sub-system such that any removal of energy is performed solely by said pre-existing first energy transfer sub-system and any supply of energy is performed solely by said pre-existing second energy transfer sub-system.