Half volume of heat exchanger manufacturers preferred Shandong Jintai, excellent quality and a half to lead the industry volumetric heat exchanger built-in heater, the main principle is borne by improving heat pipe and tube heated water velocity, laminar flow change for change turbulent heat transfer, give full play to the role of heat exchange tubes, the water is heated to eliminate short circuit, greatly improve the heat transfer coefficient, so as to improve the heat transfer efficiency and heat supply. Half volume of heat exchanger is the same type of heat exchanger for foreign international advanced level of technology infrastructure have made a great improvement on the introduction of new products, Shandong Plymouth Lung Group design and manufacture of new patented products, Its thermal performance at home and abroad are more than the same type of equipment, is the ideal equipment for HVAC heating and water supply and drainage. Features 1, part of the improved fast heat exchanger, the heat transfer coefficient is higher, heat capacity, heat transfer of the same product is equivalent to 5-8 times the volume of traditional volume heat exchanger, respectively; 2, where semi-displacement characteristics, making the storage part of the reservoir has a 10-20 minute amount of hot water, heating water head loss ≤0.2 meters, so it is set in the general conditions of automatic temperature control can maintain the water supply pressure, temperature stable, safe, water conservation, water and comfort features; 3, the heating part of the fast type, all of the hot water storage tank, no stagnant water, cold water area, volume utilization rate of 100%; 4, the product at little or no water rate, it can by means of hot water circulating pump pipe-line work to maintain the temperature inside the tank, part of the total heat flow of water to be heated in the state, so that the full heat, energy saving. Soda water condensation heat when the temperature is below 80 ℃; 5, pot size, light weight, fast heat transfer can be drawn horizontally, and easy maintenance.