At indianboilers.com, we offer two main designs:

• Indirect Fired: Uses a high-efficiency heat exchanger to ensure process air never touches the smoke or flue gases. Ideal for food and pharma.
• Direct Fired: The hot combustion gases are mixed directly with the process air, offering maximum thermal efficiency for less sensitive applications like brick or timber drying.

Our furnaces are designed for versatility. You can use firewood, biomass briquettes, coal, rice husk, or other agricultural waste products depending on local availability and cost.

The primary advantage is operating cost. Solid fuels like wood and briquettes are significantly cheaper than diesel or LPG, often reducing your daily heating bills by 50% to 70%.

Briquettes are compressed blocks made from agricultural waste (like sawdust or groundnut shells). They have a higher calorific value, lower moisture content, and provide more uniform combustion than raw wood.

Our standard solid-fuel generators provide hot air from 100°C up to 400°C. Specialized high-temperature models can reach up to 600°C for specific industrial needs.

We manufacture units starting from 1,00,000 kcal/hr up to 50,00,000 kcal/hr to suit both small-scale and large-scale industrial operations.

Our Wood / Briquette fired systems achieve an overall thermal efficiency of 80% to 85% thanks to optimized furnace designs and high-surface-area heat exchangers.

Yes. We provide PID-based control panels that regulate the air dampers and fuel feed (in automatic models) to maintain your desired temperature with high precision.

When operated correctly with high-quality fuel, emissions are minimal. We also provide Cyclonic Dust Collectors and Bag Filters to ensure that the exhaust meets environmental standards.

These units are widely used in:

• Agro-Industries: For drying grains, seeds, and pulses.
• Textiles: For fabric drying and curing.
• Chemicals: For powder and granule drying.
• Pulp & Paper: For drying large volumes of paper products.

Yes, provided you use our Indirect Fired model. The multi-pass heat exchanger ensures that 100% clean, soot-free air reaches your product.

No. Unlike steam boilers, hot air generators do not require a water supply or chemical treatment, which reduces plumbing costs and eliminates the risk of water-side scaling.

Safety is our priority at indianboilers.com. Features include:

• Over-temperature Alarms: Audio-visual alerts if the air exceeds set limits.
• FD/ID Fan Interlocks: Prevents fuel combustion if there is no airflow.
• Safety Dampers: To prevent backfire or pressure build-up.

Ash should typically be removed once or twice a day, depending on the fuel quality. Our designs feature easy-access ash pits to make this process quick and clean.

Regular maintenance involves cleaning the heat exchanger tubes, inspecting the refractory lining in the furnace, and lubricating the blower and fan motors.

With proper care and using the correct fuel, our high-quality refractory lining typically lasts 3 to 5 years before needing minor repairs.

Pricing for these systems is highly competitive but varies based on capacity. Small manual-firing units start at approximately ₹500,000.00. Large-capacity systems with automatic fuel feeding and advanced pollution control can range between ₹8,00,000 and ₹25,00,000+.

The cost is influenced by the Kcal/hr capacity, the choice between manual or automatic firing, and the inclusion of advanced dust collection systems (like Bag Filters).

Because of the massive savings on fuel compared to diesel or electricity, most customers achieve a complete Return on Investment (ROI) within 6 to 12 months of operation.