Power: 0.3~30tons/hr Heat efficiency is high up to 91%, An economizer can save 10% fuel and less noise 1 year free warranty Functions Industry users: pharmacy mills, paper mills, tobacco factories, printing and dyeing, textile mills and so on.Civil users: laundry, hospitals (disinfection), saunas, restaurants, etcRecreation: together with water-water exchanger, provide hot water for swimming pool ...