Traditional furnaces use thick firebricks (refractory) which are prone to cracking and heat loss. Membrane panels are gas-tight, eliminate air leakage, and replace heavy bricks with water-filled tubes, making the boiler lighter, more efficient, and faster to start.

FBC is a combustion technology where fuel is burnt in a suspended state using a high-velocity bed of hot sand or ash. This "fluid-like" state ensures uniform temperature and near-complete combustion of the fuel.

Because the water wall panels provide the structural boundary and cooling for the furnace, there is no need for extensive refractory lining. This reduces annual maintenance costs significantly, as there are no bricks to repair or replace.

The tubes in a membrane panel are exposed directly to the radiant heat of the furnace. This provides a much larger heating surface area compared to conventional designs, allowing for rapid steam generation.

Our Water Wall FBC boilers consistently achieve thermal efficiencies of 80% to 85%. When equipped with an Economizer and Air Pre-Heater (APH), they can reach the upper limits of solid-fuel efficiency.

At indianboilers.com, our standard range is from 2 TPH to 10 TPH, with customized high-capacity units available up to 20 TPH in the COMBIPOWER series.

It is a true multi-fuel workhorse. It can burn:

• Coal: Indian or Imported Coal, Lignite.
• Agro-Waste: Rice Husk, Mustard Stalks, Sawdust.
• Biomass: Briquettes, Pellets, and Palm Kernels.

Standard industrial units are designed for 10.54 kg/cm² to 17.5 kg/cm², but we can engineer high-pressure models up to 21 kg/cm² or even 45 kg/cm² for specialized power applications.

FBC beds can be abrasive. We use specialized stainless steel nozzles and erosion-resistant shields on the water wall tubes and in-bed tubes to ensure a long service life.

Yes. The large water volume and the high heat storage capacity of the fluidized bed allow these boilers to respond quickly to sudden spikes in steam demand without dropping pressure.

Because there is minimal refractory to heat up, the "cold start" time is significantly shorter than brick-lined boilers—typically reaching full pressure in 45 to 60 minutes.

To comply with environmental norms, we provide Multi-cyclone Dust Collectors (MDC) as standard. For stricter pollution zones, we integrate high-efficiency Bag Filters or Electrostatic Precipitators (ESP).

Yes. All our high-capacity membrane boilers are manufactured under Indian Boiler Regulations (IBR), providing the highest level of safety and insurance compliance.

Absolutely. We offer both Under-bed (pneumatic) and Over-bed (mechanical) automated fuel feeding systems to reduce manual labor and maintain steady combustion.

These are premium, high-capacity systems. Estimated prices for 2025 are:

• 2 TPH to 4 TPH: ₹5,000,000.
• 5 TPH to 10 TPH: ₹40,00,000 – ₹65,00,000.
• 15 TPH to 20 TPH: ₹85,00,000+.
• Prices depend on the degree of automation and pollution control equipment.

The membrane panel design involves precision welding and high-grade boiler tubes (SA210) for the entire furnace. While the initial cost is higher, the fuel savings and zero refractory maintenance make it cheaper over its lifetime.

In a traditional boiler, refractory repairs can cost ₹2–5 Lakhs annually. With a membrane panel furnace, these costs are virtually zero for the first 10 years of operation.

Due to the high efficiency and low maintenance, most industrial plants achieve full ROI within 14 to 20 months of operation.

Visit indianboilers.com and click on "Request a Quote." Please provide your required TPH, fuel type, and process pressure so our engineers can design the most efficient solution for you.