Industrial Boilers Market

Industrial steam is one of the hardest things to decarbonise, because the temperature a process needs does not care what fuel provides it. Douglas Insights values the industrial boilers market at USD 16.9 billion in 2025 and expects USD 28.7 billion by 2035, compounding at 5.47%. The estimate is built from the bottom up: roughly 124,000 industrial boilers shipped in 2025 across gas and oil fired boilers, solid fuel boilers including coal and biomass, electric and electrode boilers, and waste heat and heat recovery boilers, at an average realised price of USD 136,000 per boiler, triangulated against industrial steam demand, installed base replacement and manufacturer disclosures. Boilers shipped grow 2.6% a year with industrial activity and fleet replacement, while price per boiler rises 2.8% a year as low emission, electric and high efficiency designs take share. Industrial heat pumps are excluded here and covered in our Industrial Heat Pump Systems Market report. This study sits within our thermal power equipment and services coverage and follows the published Douglas Insights methodology.

How is industrial heat being decarbonised?

Industrial heat is being decarbonised slowly and unevenly: combustion boilers burning gas, oil, coal and biomass still hold 78% of 2025 industrial boiler value, while electric and electrode boilers hold 12% and grow fastest of the four categories.

Industrial steam and hot water are overwhelmingly produced by burning fossil fuels in boilers, and the alternatives each fit only part of the need. Industry uses heat for cooking, drying, sterilising, distilling, chemical reactions and countless other processes, and boilers burning natural gas, oil or coal supply much of it, making industrial heat one of the largest sources of emissions. Several routes to decarbonise it are emerging. Industrial heat pumps can supply low and medium temperature heat very efficiently and are covered in our separate heat pump coverage. Electric boilers, including electrode boilers, convert electricity directly into steam at high temperatures and can switch on when renewable electricity is cheap and plentiful, providing flexibility to power grids. Biomass boilers burn wood and agricultural residues, and some boilers are being adapted to burn hydrogen. Meanwhile, tighter air pollution rules are forcing replacement of old, dirty boilers, particularly small coal boilers. The result is a market where total boiler numbers grow modestly but the mix shifts toward cleaner and electric boilers. The exclusive chapter of this report compares the cost of steam by technology and region, since relative fuel and power prices decide the choice.

What is an industrial boiler, and which of the 124,000 units shipped in 2025 are counted?

An industrial boiler produces steam and hot water for industrial processes and facilities; this study counts the roughly 124,000 industrial boilers shipped in 2025, worth USD 16.9 billion at an average realised price of USD 136,000 each.

Gas and oil fired boilers cover fire tube and water tube boilers burning natural gas, oil and similar fuels, the largest category. Solid fuel boilers cover boilers burning coal, biomass, and waste, including fluidised bed designs. Electric and electrode boilers cover boilers heated by electric elements or by passing current directly through water, able to produce high pressure steam. Waste heat and heat recovery boilers cover boilers that capture heat from exhaust gases of engines, turbines and industrial processes. Utility power station boilers, residential and small commercial heating boilers, industrial heat pumps, and gas turbines sit outside the boundary. Value is measured at the price industrial buyers pay.

Why are electric and electrode industrial boilers gaining ground?

Electric and electrode boilers hold 12% of 2025 industrial boiler value, USD 2.02 billion, and grow fastest of the four categories. They gain ground because they emit nothing at the site, can run on renewable electricity and help balance grids that rely on wind and solar.

An electric boiler converts nearly all the electricity it uses into heat, but because electricity is usually more expensive than gas per unit of energy, electric boilers historically made sense only where electricity was cheap. That is changing. In regions with large amounts of wind and solar, electricity prices at times fall very low or even negative when generation is plentiful, and industrial sites can run electric boilers during these periods, often alongside a conventional boiler or heat storage, cutting both costs and emissions. Carbon pricing raises the cost of burning gas, improving the comparison. Grid operators also value large electric boilers as flexible demand that can absorb surplus power. The main constraints are grid connection capacity, since large electric boilers need substantial power, and electricity costs in regions without cheap renewables. The model reflects electric boilers as the fastest growing category, concentrated in regions with abundant renewable power and carbon pricing.

What drives demand for industrial boilers as coal boiler bans and carbon prices bite?

Industrial boiler revenue grows 5.47% a year to 2035 on four drivers. Shipments rise from about 124,000 in 2025 to roughly 160,000 by 2035, 2.6% a year, and the shift to low emission, electric and high efficiency designs adds 2.8% a year to price per boiler.

The first driver is industrial activity. Manufacturing, food processing, chemicals, pulp and paper, textiles and other industries require steam, and industrial growth sets the base rate of boiler demand. The effect is largest in Asia Pacific, where China’s industrial base and growth in India and Southeast Asia account for 46% of 2025 industrial boiler value, USD 7.76 billion, growing 5.8% a year.

The second driver is emissions regulation. Air quality rules tracked in our Air Quality Market report, limiting nitrogen oxides, sulphur dioxide and particulates force replacement of old boilers with cleaner designs, and bans on small coal boilers in some regions accelerate replacement. Solid fuel boilers, 30% of 2025 value or USD 5.06 billion, feel this most directly: coal units are declining while biomass units grow within the same category.

The third driver is decarbonisation. Carbon pricing and corporate emissions targets push buyers toward electric, biomass and high efficiency boilers. Electric and electrode boilers, worth USD 2.02 billion or 12% of 2025 value, grow fastest of the four categories, and in the rapid-replacement scenario, where carbon pricing and emissions rules speed up replacement, shipments grow 3.6% a year and the market passes USD 34.4 billion by 2035.

The fourth driver is energy efficiency. High fuel costs encourage replacement of inefficient boilers and installation of heat recovery boilers. Waste heat and heat recovery boilers, which capture heat from engine, turbine and process exhaust, contribute 10% of 2025 industrial boiler value, USD 1.69 billion.

What could stop industrial boiler sales growing as heat pumps take low temperature heat?

Industrial cyclicality, heat pump competition and long equipment life hold down industrial boiler demand; in the heat-pump-substitution scenario, shipments grow only 1.2% a year and the 2035 market lands near USD 22.6 billion rather than USD 28.7 billion.

Three restraints are modelled. Industrial cyclicality is the first: boiler purchases follow industrial investment and can be deferred in downturns. Competition from heat pumps is second: for low and medium temperature heat, industrial heat pumps can displace boilers entirely, reducing boiler demand in those applications. Long equipment life is third: industrial boilers last decades, so replacement demand in mature markets is gradual.

Which industrial boiler segment carries the value, gas and oil fired at 48% or electric boilers at 12%?

Gas and oil fired boilers lead the industrial boilers market with 48% of 2025 value, USD 8.09 billion, because they remain the dominant industrial steam source.

Solid fuel boilers, including coal and biomass, hold 30%, USD 5.06 billion, with coal declining and biomass growing. Electric and electrode boilers account for 12%, USD 2.02 billion, and grow fastest with decarbonisation and cheap renewable power. Waste heat and heat recovery boilers contribute 10%, USD 1.69 billion, supported by efficiency goals. Each category is modelled through 2035 by industry and region.

Combustion boilers burning gas, oil, coal and biomass together account for 78% of 2025 value, USD 13.2 billion; electric and waste heat recovery boilers make up the other 22%, USD 3.71 billion, and that share widens as cleaner designs take over replacements.

Where are industrial boilers installed, from China’s coal boiler replacement to the fast-growing Middle East?

Asia Pacific leads with 46% of 2025 industrial boiler value, USD 7.76 billion, growing 5.8% a year, driven by China’s large industrial base and its replacement of small coal boilers, and industrial growth in India and Southeast Asia.

Europe holds 20%, USD 3.37 billion, at 5.0%, where carbon pricing and emissions rules drive electric and biomass boilers. North America also holds 20%, USD 3.37 billion, at 4.8%, with replacement of ageing boilers and emissions rules. The Middle East contributes USD 1.01 billion at 6.2%, Latin America USD 843.2 million at 5.4% and Africa USD 505.9 million at 6.0%. Six regional models sum to the global figure, with country tables in the Excel model.

The Middle East is the fastest growing region for industrial boilers at 6.2% a year, reaching USD 1.85 billion by 2035, with Africa close behind at 6.0%. Asia Pacific grows to USD 13.7 billion and still holds close to half the market. Europe and North America start level at USD 3.37 billion each, but Europe’s carbon-pricing-led shift to electric and biomass boilers lifts it to USD 5.49 billion by 2035, ahead of North America at USD 5.39 billion.

Who makes industrial boilers, from Babcock and Wilcox and Thermax to electrode specialists such as Parat?

A mix of global and regional manufacturers compete for the roughly 124,000 industrial boilers shipped each year, which sell at an average realised price of USD 136,000 and range from small packaged units to large biomass and recovery boilers.

Babcock and Wilcox, Thermax, Cleaver-Brooks, Bosch Industriekessel, Viessmann, Miura, Hurst and Fulton supply industrial boilers across fuel types and regions, and Valmet and Andritz supply large biomass and recovery boilers. Parat, Vapec and others specialise in electrode boilers. Chinese manufacturers including Taishan Group and Zhengzhou Boiler supply large domestic volumes, and Indian manufacturers serve South Asia. The competitive chapter profiles each manufacturer’s product range, fuel and electric capability, service network and regional presence. The field is fragmented: no industrial boiler maker reports boiler-only revenue on a basis that can be set against the USD 16.9 billion market, so Douglas Insights does not publish a leader share rather than estimate one without a filing behind it.

Two dated industrial boiler orders show where the work is going. On 18 December 2025 Babcock and Wilcox announced that its Canadian unit had been awarded the second portion of a USD 20 million boiler refurbishment project for a Canadian pulp and paper mill, the kind of life-extension spend that keeps North America’s ageing fleet running. On 26 November 2025 Thermax told the National Stock Exchange of India that its boiler subsidiary Thermax Babcock and Wilcox Energy Solutions had signed an order with Dangote in Nigeria (exchange filing), a sign of the industrial build-out behind Africa’s 6.0% annual growth.

How much does an industrial boiler cost, from packaged fire tube units to large biomass boilers?

An industrial boiler costs USD 136,000 on average in 2025, and that realised price rises 2.8% a year through 2035. The range runs from small packaged fire tube boilers costing tens of thousands of dollars to large water tube and biomass boilers costing millions.

Low emission burners, advanced controls and heat recovery add cost, and electric boilers vary with capacity and voltage. Installation, fuel handling for solid fuel boilers, and emissions control equipment can add substantially to project cost. The shift toward low emission, electric and high efficiency designs raises average price, which is the reason for the positive price leg. The pricing chapter publishes price bands by category and capacity.

How far apart do the industrial boiler forecast scenarios land by 2035, between heat pump substitution and rapid replacement?

The base case carries 2.6% growth in boilers and 2.8% growth in price per boiler for a 5.47% revenue CAGR, taking the industrial boilers market to USD 28.7 billion in 2035.

The heat-pump-substitution scenario, in which industrial heat pumps displace more boilers and industrial investment slows, sets the legs at 1.2% and 1.8%, landing near USD 22.6 billion. The rapid-replacement scenario, in which emissions rules and carbon pricing accelerate replacement with electric and low emission boilers, sets them at 3.6% and 3.8%, carrying the market past USD 34.4 billion. Each 1-point change in boiler growth moves the 2035 figure by roughly USD 2.72 billion.

Which emissions, pressure equipment and carbon rules decide which industrial boilers get bought?

Three layers of rules shape industrial boiler demand: air emissions limits that force old boilers out, pressure equipment safety regulation for every boiler sold, and carbon and energy policy that tilts the choice between fuel, biomass and electric boilers.

Air emissions regulation comes first: limits on nitrogen oxides, sulphur dioxide and particulates for combustion plants, including Europe’s Medium Combustion Plant Directive (EU) 2015/2193, which covers plants of 1 to 50 megawatts thermal input, and coal boiler restrictions in China, drive replacement and cleaner designs. Pressure equipment and safety regulation is second: boilers are pressure vessels subject to strict design, manufacturing, inspection and certification requirements. Carbon and energy policy is third: carbon pricing, efficiency standards and incentives for renewable heat shape the choice between fuel, biomass and electric boilers. The regulatory chapter maps these requirements by jurisdiction.

Where will boilers lose ground to heat pumps?

Industrial boilers will lose ground to heat pumps mainly below around 100 to 150 degrees Celsius, in food and beverage, pulp and paper drying and some chemical processes; above that range, boilers stay essential and electric and low emission designs grow within it.

Industrial heat pumps are becoming a serious competitor to boilers, but mainly for lower temperature heat, which defines where boilers remain essential. Heat pumps are very efficient at supplying heat up to around 100 to 150 degrees Celsius, which covers many applications in food and beverage, pulp and paper drying, and some chemical processes, and in these uses they can replace gas boilers with much lower energy use and emissions. For higher temperature steam, however, required by many chemical, refining and industrial processes, heat pumps are less mature or unsuitable, and boilers, whether gas, biomass or electric, remain necessary. The likely outcome is that heat pumps take a growing share of low temperature heat while boilers remain dominant at higher temperatures, with electric and low emission boilers growing within that space. The model reflects this split, with boiler demand growing modestly overall.

Douglas Exclusive: the cost of steam by technology model

The cost of steam by technology model compares, by region and temperature range, the cost of producing steam and hot water from gas, coal, biomass, electric boilers and heat pumps, including fuel and electricity prices, carbon costs and equipment costs, identifying which technology is cheapest where and converting industrial heat demand into boiler demand by category and region. Licence holders receive it as a maintained tab in the Excel model. The model is a Douglas Insights model, an estimate rather than an official register, built from 30 modelled cost-of-steam cells (5 heat technologies, gas, coal, biomass, electric boilers and heat pumps, in each of 6 regions), set against about 124,000 industrial boiler shipments in 2025 in 4 categories. Its finding: the cheapest steam source differs by region, which is why electric and electrode boilers, 12% of 2025 value, grow fastest where wind and solar power is cheap and carbon is priced.

Methodology and receipts

The industrial boilers model starts from about 124,000 boilers shipped in 2025 at an average realised price of USD 136,000, split into four categories and six regional models that sum to the USD 16.9 billion global figure. In the model’s own units that is USD 16,864.0 million in 2025 and USD 28,731.2 million in 2035, with gas and oil fired boilers at USD 8,094.7 million. It is built bottom-up from boilers: industrial steam demand by industry and region, installed base and replacement cycles, emissions driven replacement, fuel and technology mix, and realised prices from manufacturer disclosures, with utility boilers, residential and small commercial boilers, industrial heat pumps and gas turbines excluded. Every figure carries a numbered source and a confidence grade in the fact sheet above, and the working model ships with every licence. The next scheduled review of this study is September 2027. Automated checks test every figure on this page against the model and AI tools assist with drafting; the Douglas Insights research desk chooses the sources, builds the model and approves publication, as set out in our editorial standards.