The present invention relates to a heat exchanger for heating a facility house, the configuration of which is located in the reservoir, the heater is located in the reservoir, the heater member for supplying energy to heat the fluid contained in the reservoir, and the vicinity of the reservoir Located in the housing, the front and rear open, and the coil member is located in the housing, the pipe through which the fluid is passed in a zigzag form, one end is coupled to the reservoir and the other end is connected to the end of the coil member A connecting pipe member for flowing the heated fluid in the reservoir to the coil member, a blowing fan member positioned at the rear of the housing, forcibly blowing air to the housing, a pump for flowing the fluid, and Is coupled to the end of the coil member is coupled to the other end of the end and the other end of the coupling pipe member is coupled Is coupled to the pump, the pump transfer pipe member for moving the fluid passing through the coil member to the pump, coupled with the pump, the fluid flowing by the pump is discharged, the end is bent upwardly curved portion And a pump discharge port positioned in the reservoir to allow the fluid flowing by the pump to flow into the reservoir and protruding upward from the uppermost surface of the fluid contained in the reservoir. As the upper end of the pump discharge port protrudes above the upper surface of the fluid contained in the reservoir, the fluid contained in the reservoir is prevented from flowing back toward the pump and heat of the fluid contained in the reservoir is transferred to the pump. It can be suppressed to be transmitted, and a plurality of vinyl houses, etc. And it is a full install greenhouses can be heated, so have a small volume, there is an effect that may be easier to install and its maintenance.본 고안은 시설하우스 난방용 열교환기에 관한 것으로, 그 구성은 유체가 수용되는 저장조와, 상기 저장조 내에 위치되며, 에너지를 공급받아 열을 제공하여 상기 저장조 내에 수용된 유체를 가열하는 히터부재와, 상기 저장조 인근에 위치되며, 전면과 후면이 개방된 하우징과, 상
