50 Years Of Trust | Engineering The Next Energy ERA
50 Years Of Trust | Engineering The Next Energy ERA
92%+ Thermal Efficiency | Multi-Fuel Flexibility | Modular Skid-Mounted | SMARTWIZ IoT Ready
Available in two distinct configurations — Oil & Gas Fired LDO, FO / HFO Low Sulphur Heavy Stock (LSHS), High Speed Diesel (HSD) Natural Gas (NG) Piped Natural Gas (PNG) clean, fully-automatic combustion, and Solid Fuel Fired biomass, coal, and agro-waste fuels — ISOTEX Hot Water Generators offer unmatched fuel flexibility for every industrial requirement and budget profile.
Whether your application requires large volumes of hot water for textile dyeing, HVAC district heating, hospital sterilisation, hotel hot water supply, dairy pasteurisation, or food processing — ISOTEX Hot Water Generators deliver consistent, precise temperature output with industry-leading reliability and comprehensive after-sales support through our pan-India service network.
The ISOTEX Hot Water Generator is a fully automatic, high-efficiency industrial hot water system engineered for precision temperature control across a wide range of industrial and commercial applications. Designed with nearly 50 years of thermal engineering expertise and backed by over 10,000+ global installations, the HWP Series delivers reliable hot water at controlled temperatures from 50°C to 180°C using multi-pass shell & tube heat exchanger technology.
| Parameter | Value / Range |
|---|---|
|
Thermal Capacity Range |
4,00,000 to 1,50,00,000 kcal/hr |
|
Fuel Options |
Oil & Gas Fired LDO, FO / HFO Low Sulphur Heavy Stock (LSHS), High Speed Diesel (HSD) Natural Gas (NG) Piped Natural Gas (PNG) & many more
Solid Fuel Fired biomass, coal, and agro-waste fuels ,wood & many more |
|
Hot Water Outlet Temperature |
Up to 180°C |
The ISOTEX Unitherm Thermosyphon Boiler is available in multiple firing configurations, offering unmatched fuel flexibility across solid, liquid, and gaseous fuels to match every industry’s availability, cost, and emission requirements.
4,000–4,500 kCal/kg
Uniform-density pellets with consistent calorific value. Suitable for automated feeding systems. Ideal for industries requiring precise heat output with low ash content.
High-calorific fuel
3,500–4,000 kcal/kg
Compressed agro-waste or sawdust blocks; consistent sizing enables automated feeding
Cotton stalks, groundnut shells, mustard husk, sugarcane bagasse, bamboo chips — any locally available agro-waste
Light Diesel Oil
Clean liquid fuel with low viscosity, ideal for quick start-up and applications requiring minimal emissions. Widely available across India with consistent quality.
Furnace Oil
Cost-effective heavy fuel for continuous industrial operation. Requires fuel pre-heating system for proper atomisation. Most economical liquid fuel option for high-capacity applications.
High Speed Diesel
Premium diesel fuel for standby, peak demand, and backup applications. Cleanest liquid fuel option with excellent combustion characteristics.
Low Sulphur Heavy Stock
Low emission heavy fuel for environmental compliance zones. Reduced SOx emissions compared to standard furnace oil while maintaining cost advantages of heavy fuels.
Bituminous / Sub-Bituminous
Clean liquid fuel with low viscosity, ideal for quick start-up and applications requiring minimal emissions. Widely available across India with consistent quality.
2,500–3,500 kcal/kg
Lower-grade coal with higher moisture content (20–40%). Fluidised Bed Combustion (FBC) technology preferred for efficient combustion.
Fluid Bed Combustion (FBC)
Advanced FBC technology enables combustion of high-ash coal (40%+ ash), high-moisture biomass, and mixed fuel combinations at lower temperatures (800–900°C), reducing NOx formation and enabling in-bed sulphur capture with limestone injection.
The Ecobloc introduces patented inbed heat recovery technology and advanced FBC combustion engineering that surpasses every conventional alternative in efficiency, fuel flexibility, and long-term reliability.
The ISOTEX Oil & Gas Fired Hot Water Generator is a fully automatic, high-efficiency industrial hot water system engineered for precision temperature control across a wide range of industrial and commercial applications.
Hot Water Generator in Power Plant in Andhra Pradesh
50 Lakh kCal/hr
Natural gas
Hot Water Generator in Food Industry (Ice Cream Plant) in Telangana
25 Lakh * 2 kCal/hr
Biomass Pallets
Hot Water Generator in Industry in Andhra Pradesh
10 Lakh kCal/hr
Wood
Hot Water Generator in CBG Industry in Gujarat
15 Lakh kCal/hr
Biomass -Agro Waste
Our engineering team responds within 24 hours. Share your capacity requirements and fuel preference. We’ll engineer the right solution.
