Abstract: A gas heat pump system powered by natural gas, propane or similar gaseous fuel is disclosed. The system uses heat recovery and heat addition to manage efficient heating and cooling cycles. In a cooling cycle excess heat is vented to the atmosphere while in a heating cycle, excess heat is used to heat a subject structure and to prevent frost from forming on outdoor heat exchangers. A control system monitors the system's operation and corrects abnormal operational conditions or shuts down the system until the system can be manually inspected. The costs of system operation are less than electric systems because of the efficiencies and use of natural gas or propane.

Abstract: A gas heat pump system powered by natural gas, propane or similar gaseous fuel is disclosed. The system uses heat recovery and heat addition to manage efficient heating and cooling cycles. In a cooling cycle excess heat is vented to the atmosphere while in a heating cycle, excess heat is used to heat a subject structure and to prevent frost from forming on outdoor heat exchangers. A control system monitors the system's operation and corrects abnormal operational conditions or shuts down the system until the system can be manually inspected. The costs of system operation are less than electric systems because of the efficiencies and use of natural gas or propane.

Abstract: A gas heat pump system powered by natural gas, propane or similar gaseous fuel is disclosed. The system uses heat recovery and heat addition to manage efficient heating and cooling cycles. In a cooling cycle excess heat is vented to the atmosphere while in a heating cycle, excess heat is used to heat a subject structure and to prevent frost from forming on outdoor heat exchangers. A control system monitors the system's operation and corrects abnormal operational conditions or shuts down the system until the system can be manually inspected. The costs of system operation are less than electric systems because of the efficiencies and use of natural gas or propane.

Abstract: A heat transfer system for a building and the building's appurtenances utilizes a heat transfer medium that obtains heat from environmental panels. The heat transfer medium flows in a unidirectional mode through the system. The heat transfer medium is passed through heat exchangers where the heat values in the medium are exchanged or transferred to water to raise the temperature of the water which is then subsequently used as hot water for appurtenant building uses. The heat transfer system, independently from the ambient heat obtainable from the environmental panels, can also utilize heat drawn from air conditioning units to both cool the air passing through the air conditioners and to heat the heat transfer medium. This heat is then exchanged or transferred to the various water sources for use in the appurtenant building uses. An electrical control system selectively transfers the available heat values to those appurtenant building uses, giving preference to those uses as determined by the operator.