Abstract: A system for producing maple syrup or birch syrup from maple or birch water, comprising an evaporating pan under controlled pressure, a condenser immersed in maple or birch water in the evaporating pan, and a compressor, pressurizing vapor generated by evaporation of maple or birch water in the evaporating pan, the condenser directing the pressurized vapor provided by the compressor to the maple or birch water within the evaporating pan, thereby further evaporating the maple or birch water and further generating vapor.

Abstract: A method and a system comprising pressurizing the vapor generated by evaporation, and circulating the pressurized vapor through the maple water above boiling temperature, so as to evaporate water from the maple water. As a result, once the steady state is reached, the main source of energy for water maple evaporation is the pressurized vapor, produced by a compressor. The compressor may be powered by an electrical or an internal combustion engine for example. The initial heating stage, needed to first get vapor from the maple water, is performed by an auxiliary heating unit, such as direct acting electrical heating elements, or a indirect heat source such as wood, oil, etc. for example.

Abstract: A method and a system for regulating fluid levels in an evaporator comprising fluid communicating pans, the system comprising a tube in fluid communication with at least a first pan of the evaporator and exterior to the first pan, a level sensor immersed in the fluid in the tube; an air pump unit; and a pressure monitoring unit; the air pump unit providing a constant air airflow to the tube; the level sensor detecting variations of the fluid level in the tube, and the pressure monitoring unit controlling input of fluid into the first pan in response to the variations detected by the level sensor.

Abstract: A method and a system for regulating fluid levels in an evaporator comprising fluid communicating pans, the system comprising a tube in fluid communication with at least a first pan of the evaporator and exterior to the first pan, a level sensor immersed in the fluid in the tube; an air pump unit; and a pressure monitoring unit; the air pump unit providing a constant air airflow to the tube; the level sensor detecting variations of the fluid level in the tube, and the pressure monitoring unit controlling input of fluid into the first pan in response to the variations detected by the level sensor.