Automatic steam boilers 50 kg/hr to 850 kg/hr in non-IBR, upto 10 TPH in IBR range. Steam boilers are oil, wood or gas fired. Automatic hot water systems - both recircularion & storage type-oil, gas or wood fired. Automatic hot air generators-indirectly heated - hot air upto 400 deg c. Thermic fluid heaters - 0.50 kcal/hr to 10 lac kcal/hr. Water treatment plants, effluent treatment plants, minreal water plants