... '.We are a professional heat exchanger, condenser, evaporator, heat pump,air cooler and air conditioner manufacturer in China, which has ... cost as high as 60%~80% compared with oil boiler, gas boiler, coal boiler, electricity water heater etc.Environment-friendly: ... . 3)no potential hazards of inflammable, explosive, electric shock, gas poisoning.Range of application :It is suitable for family, villa ...