Industrial Hot Water Generators are vented systems provide temperatures up to 98°C. Pressurized systems are essentially closed loop required for indirect heating and provide temperatures up to 150°C without boiling or steam formation. The system is suitable to heat water up to 250°C with combustion of any solid fuels like wood, coal, bagasse, corn cobs, agrowaste, lignite, petcoke, etc. System is designed with all safeties & controls well defined for safe operation without lesser maintenance.