Hot Water Generator
Solid Fuel Fired

Salient Features of This Model
Our vertical three / four-pass hot water generator is ideally suited for a wide range of industries in India and abroad, especially in today’s dynamic and unpredictable energy environment. Thermotech’s innovative vertical heaters with a Box design, combined with an integral furnace, guarantee optimized output with any type of solid fuel.
The Watertherm Principle
In the Watertherm system, we replace the thermic fluid with water within a closed-loop pressurized system. Water reaches its boiling point when its vapour pressure equals atmospheric pressure. But when pressurized, water can boil at temperatures exceeding
100° C. The watertherm uses this principle to heat water to temperatures as high as 250° C and beyond, all while maintaining its liquid state. This pressurized closed-loop system efficiently transfers water to the point of application
Water, being eco-friendly with a specific heat of one, outperforms other industrial heat transfer media like thermic fluids with certain applications.
Safety Assurance
- No Fire Hazard – Water is the safest heat exchange medium. This provides the assurance of no fire hazard, unlike other heat transfer fluids.
- Food-Grade Assurance – In the food processing industry, the Watertherm technology ensures that the end product maintains food-grade standards, making it an ideal heat exchange medium.
- Zero-Contamination Risk –In industries such as Pharma, Tea, Food Processing, Chemical, and Edible oils, the leakage of thermic fluid can lead to contamination and significant losses in product, time, and money. Watertherm eliminates this risk as water, the
heat exchange medium, prevents contamination and ensures zero wastage of the end product.
Advanced Combustion Technology
Achieving complete combustion of solid fuel is vital, and our system accomplishes this through thorough mixing of fuel and air, creating a self sustainable combustion temperature with ample oxygen for every fuel particle. This results in reduced operational costs and lower maintenance requirements.
Benefits
- Versatile Industrial Application – This hot-water generator is well-suited for a diverse range of industries, making it adaptable to various operational environments and needs.
- Optimized Output – Thermotech’s innovative design, featuring a vertical configuration and integral furnace, ensures consistent and efficient performance. The system maximizes output even when using different types of solid fuels, enhancing productivity.
- Fuel Flexibility – The generator’s ability to function with various solid fuels provides businesses with the flexibility to choose cost-effective and readily available fuel sources, reducing operational expenses.
- Adaptability to Market Dynamics – In today’s dynamic and unpredictable energy environment, this generator provides a reliable and adaptable solution, ensuring uninterrupted operations despite changing fuel availability or prices.
- Easy Integration – The generator’s design allows for seamless integration into existing industrial setups, minimizing disruptions and installation complexities.
- Environmental Considerations – Efficient combustion and reduced emissions contribute to a more environmentally friendly operation.
Capacity
Thermotech offers a comprehensive selection of hot water generator models designed to cater to diverse customer requirements. These models come in capacities spanning from 1,00,000 KCal/hr to 50,00,000 KCal/hr with standard outlet temperatures reaching 140° C. Upon request, we also offer customized systems with outlet temperatures extending up to 225° C.
Applications
The Thermotech Hot Water Generators are meticulously designed to accommodate a wide range of commercial and special fuels available in the market. They find their utility across diverse industries.
- Industries We Serve – Tea industries, Hotels/ Resorts/ Ashrams, Malt industries, Dairy and Confectionery, Edible Oil industries, Garment and Laundry, Swimming Pools, Guar gum industries, Electroplating, Steel Plants, Laminate Industries, and more.
- Fuel Flexibility – Our hot water generators are designed to handle a range of fuels, offering remarkable adaptability. These include wood waste, rice husk, sawdust, mustard straw, petroleum coke, groundnut shell, coffee husk, bagasse, cotton stalk, rice straw, coal, lignite, palm waste, coconut waste, and more.
- Unwavering Quality Assurance – We take pride in our commitment to quality, holding an ISO 9001, 14001 & 45001 certificate since decade. Through this commitment to quality, we provide top-notch heating solutions to our customers.
Oil/Gas Fired

Salient Features of This Model
Backed by our well structured infrastructure unit, we are affianced in providing precision engineered Oil/Gas Fired Hot Water Generator. This generator is a safer and economical system which delivers hot water much faster than any other system. It’s most ideal usage includes hotels, hospitals, residential complex, laundry, dairy industries, etc., where continuous hot water supply is essentially required. The offered generator is efficiently manufactured using standard quality components and advanced machines in complete sync with defined industry standards. Additionally, the offered Oil/Gas Fired Hot Water Generator is stringently tested on certain parameters under the direction of our deft quality controllers.
Features
- Energy efficient
- Trouble free functioning
- Easy to operate
- Longer service life
The Watertherm is a very compact fully automatic packaged hot water generator in ready to install condition and can be installed where ever space is available. It does not require any special room like boiler house. It falls outside the purview of Indian Boiler Regulations. Watertherm is a safer and economical system which delivers hot water much faster than any other conventional system.
It’s most ideal usage includes Hotels, Hospitals, Residential Complex, Laundry, Dairy Industries, etc. where continuous hot water supply is essentially required. Watertherm system is available in wide range of heat output from 0.1 Mkcals/hr. to 15 Mkcal/hr.
A New Perception In Quality
Thermotech Established Back In 1988, Is Today A Leading Industry In Process Heating Systems. The Great Impetus Lies In The Hard Work, No Quality Compromise, Implementing Latest
Technologies And Above All Incredibly Environmental Compliance.
A Large Network In India Provides Prompt And Assured Quality Service To Our Valued Clients Within No Time.
Watertherm – A New Concept In Hot Water Boilers Heat Exchanger Of Hot Water Generator Are Fabricated Out Of Boiler Tube Bs 3059 Of Adequate Size, Accurately Designed With Concentric Multi Start – Three Flue Gas Passes To Ensure Optimum Heat Transfer With Low Flue Gas Exit Temperature Operates Watertherm At A Constant Efficiency Of 88 % (on Ncv @ Mrc). Small Capacity Models Wt-30 & Wt-50 Are Sleek, Compact And Instant Hot Water Generator Exclusively Designed For Hotels, Resorts, Dairies & Hospitals.
Benefits
- Fully Automatic
- No Extra Man Power Is Required
- Single Button Start / Stop With Automatic Controls
- Easy To Operate
- Economical
- Low Installation Cost
- Minimum Space Required
- High Operational Savings Of Over 50 % Against Electrical Heating
- Low Maintenance Cost
- Front Door Access For Cleaning And Inspecting Flue Gas Port Without
- Removing The Burner
- Exempted From Indian Boiler Regulation Act
- Eco Friendly A Space Saver
- Smokeless Emission
- Less Floor Space Required
- Highly Compact
- Noise Less Operation
- Can Be Installed On Terrace, Basement Or Anywhere
Applications
- Hotels / Resorts
- Ashram / Dharmshala
- Dairy
- Garments / Laundry
- Swimming Pools
- Guar Gum Industry
- Electroplating
- Steel Plants