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Marine Thermal Fluid Heaters Market Size, Share and Forecast 2026-2036

The global marine thermal fluid heaters market is worth USD 251 mn in 2026 and is forecast to reach USD 409 mn by 2036, growing at a 5.0% CAGR. China is the largest country market and Oil-fired is the largest by heating segment.

USD 251 mnMarket size 2026
USD 409 mnForecast 2036
5.0%CAGR 2026-2036
ChinaLargest country

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5 segmentation views25 countries2026 to 2036 yearly forecast

Market overview

The global marine thermal fluid heaters market is worth USD 251 mn in 2026 and is forecast to reach USD 409 mn by 2036, growing at a 5.0% CAGR. China is the largest country market and Oil-fired is the largest by heating segment.

ScopeHeaters that circulate hot thermal oil on ships to heat cargo, fuel and process loads, fired by oil or gas, heated by exhaust gas, or electric.
IndustryOil and Gas
Value 2025USD 240 mn
Value 2026USD 251 mn
Value 2036USD 409 mn
CAGR 2026-20365.0%
Volume 20261,133 units
Volume 20361,590 units
Average price 2026USD 221,500 per unit
Report priceStarts from USD 1,999
PublishedNovember 2026

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Marine Thermal Fluid Heaters market size and forecast, 2026-2036

Exhibit 1The global marine thermal fluid heaters market is forecast to grow from USD 251 mn in 2026 to USD 409 mn by 2036, a rise of 63%Global market value in USD: 2025 base year, 2026 estimate and forecast to 2036. CAGR 2026 to 2036: 5.0%
Marine Thermal Fluid Heaters market value, 2025 to 2036Market value by year. 2025: USD 240 mn; 2026: USD 251 mn; 2027: USD 263 mn; 2028: USD 277 mn; 2029: USD 290 mn; 2030: USD 305 mn; 2031: USD 320 mn; 2032: USD 336 mn; 2033: USD 353 mn; 2034: USD 371 mn; 2035: USD 389 mn; 2036: USD 409 mn. Compound annual growth rate 2026 to 2036: 5.0%.2025251 mn2026320 mn2031409 mn20365.0% CAGR

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

YearMarket value
2026USD 251 mn
2027USD 263 mn
2028USD 277 mn
2029USD 290 mn
2030USD 305 mn
2031USD 320 mn
2032USD 336 mn
2033USD 353 mn
2034USD 371 mn
2035USD 389 mn
2036USD 409 mn

Marine Thermal Fluid Heaters market segmentation

By heating

Exhibit 2Oil-fired is the largest segment by heating, with 46.0% of 2026 revenueEstimated share of 2026 global revenue, by heating
Marine Thermal Fluid Heaters market share by heating, 2026Share of 2026 revenue by heating. Oil-fired: 46.0%; Exhaust-gas: 28.0%; Electric: 14.0%; Gas and dual-fuel: 12.0%.Oil-fired46.0%Exhaust-gas28.0%Electric14.0%Gas and dual-fuel12.0%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Oil-fired46.0%38.2%USD 115 mn3.1%
Exhaust-gas28.0%29.6%USD 70 mn5.6%
Electric14.0%19.5%USD 35 mn8.6%
Gas and dual-fuel12.0%12.7%USD 30 mn5.6%

By vessel

Exhibit 3Tankers adds the most revenue by vessel, growing from USD 110 mn in 2026 to USD 178 mn by 2036Estimated revenue in USD by vessel, 2026 and 2036 forecast
Marine Thermal Fluid Heaters market by vessel, 2026 and 2036Revenue by vessel in 2026 and 2036. Tankers: USD 110 mn in 2026, USD 178 mn in 2036, change +61%; Chemical carriers: USD 45 mn in 2026, USD 73 mn in 2036, change +61%; LNG and gas carriers: USD 30 mn in 2026, USD 58 mn in 2036, change +94%; Offshore and other: USD 30 mn in 2026, USD 51 mn in 2036, change +69%; Bulk carriers: USD 35 mn in 2026, USD 49 mn in 2036, change +39%.20262036 forecastChangeTankers+61%110 mn178 mnChemical carriers+61%45 mn73 mnLNG and gas carriers+94%30 mn58 mnOffshore and other+69%30 mn51 mnBulk carriers+39%35 mn49 mn

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Tankers44.0%43.5%USD 110 mn4.9%
Chemical carriers18.0%17.8%USD 45 mn4.9%
Bulk carriers14.0%12.0%USD 35 mn3.4%
LNG and gas carriers12.0%14.3%USD 30 mn6.9%
Offshore and other12.0%12.4%USD 30 mn5.4%

By heat output

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Up to 500 kW22.0%20.0%USD 55 mn4.0%
500 to 2,000 kW46.0%45.0%USD 115 mn4.8%
Above 2,000 kW32.0%35.0%USD 80 mn6.0%

By buyer

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Shipyards for newbuilds62.0%58.0%USD 156 mn4.3%
Shipowners for retrofit26.0%28.0%USD 65 mn5.8%
Aftermarket service12.0%14.0%USD 30 mn6.6%

By oil temperature

SegmentShare 2026Share 2036Value 2026CAGR 2026-36
Up to 250 C28.0%26.0%USD 70 mn4.2%
250 to 300 C52.0%52.0%USD 130 mn5.0%
Above 300 C20.0%22.0%USD 50 mn6.0%

Top 25 countries for marine thermal fluid heaters by revenue

Countries are ranked by revenue earned from sales in the country, not by where the product is made. The ten largest hold 87.5% of 2026 revenue and the 25 countries below together hold 96.5%.

Exhibit 4China is the largest country market at USD 90 mn in 2026, and the three largest countries hold 68.0% of global revenueEstimated 2026 revenue in USD and share of the global market, ten largest countries
Marine Thermal Fluid Heaters market, ten largest countries in 2026Ten largest countries by 2026 revenue. China: USD 90 mn, 36.0%; South Korea: USD 55 mn, 22.0%; Japan: USD 25 mn, 10.0%; Germany: USD 7.5 mn, 3.0%; Singapore: USD 7.5 mn, 3.0%; Vietnam: USD 7.5 mn, 3.0%; Italy: USD 7.5 mn, 3.0%; Turkey: USD 6.3 mn, 2.5%; Norway: USD 6.3 mn, 2.5%; Netherlands: USD 6.3 mn, 2.5%.China90 mn 36.0%South Korea55 mn 22.0%Japan25 mn 10.0%Germany7.5 mn 3.0%Singapore7.5 mn 3.0%Vietnam7.5 mn 3.0%Italy7.5 mn 3.0%Turkey6.3 mn 2.5%Norway6.3 mn 2.5%Netherlands6.3 mn 2.5%

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

#CountryValue 2026Share 2026Value 2036CAGR 2026-36
1ChinaUSD 90 mn36.0%USD 152 mn5.4%
2South KoreaUSD 55 mn22.0%USD 85 mn4.4%
3JapanUSD 25 mn10.0%USD 37 mn3.9%
4GermanyUSD 7.5 mn3.0%USD 11 mn4.3%
5SingaporeUSD 7.5 mn3.0%USD 13 mn5.3%
6VietnamUSD 7.5 mn3.0%USD 16 mn7.5%
7ItalyUSD 7.5 mn3.0%USD 11 mn4.3%
8TurkeyUSD 6.3 mn2.5%USD 11 mn5.8%
9NorwayUSD 6.3 mn2.5%USD 9.8 mn4.6%
10NetherlandsUSD 6.3 mn2.5%USD 9.8 mn4.6%
11United StatesUSD 3.2 mn1.3%USD 5.2 mn4.9%
12IndiaUSD 2.8 mn1.1%USD 5.6 mn7.3%
13GreeceUSD 2.5 mn1.0%USD 4.0 mn4.9%
14DenmarkUSD 2.2 mn0.9%USD 3.5 mn5.0%
15BrazilUSD 1.9 mn0.8%USD 3.1 mn4.9%
16TaiwanUSD 1.7 mn0.7%USD 2.7 mn4.8%
17PolandUSD 1.5 mn0.6%USD 2.4 mn4.8%
18FranceUSD 1.3 mn0.5%USD 2.1 mn4.8%
19FinlandUSD 1.1 mn0.5%USD 1.8 mn4.8%
20PhilippinesUSD 1.0 mn0.4%USD 2.0 mn7.4%
21CroatiaUSD 0.88 mn0.3%USD 1.4 mn5.0%
22SpainUSD 0.78 mn0.3%USD 1.3 mn5.0%
23RomaniaUSD 0.68 mn0.3%USD 1.1 mn5.0%
24MalaysiaUSD 0.60 mn0.2%USD 0.98 mn5.0%
25IndonesiaUSD 0.53 mn0.2%USD 1.1 mn7.3%
Rest of worldUSD 8.8 mn3.5%USD 15 mn5.4%
Exhibit 5China and South Korea account for 58% of the USD 158 mn the market is forecast to add by 2036Forecast revenue added between 2026 and 2036 by country, in USD
Marine Thermal Fluid Heaters market, where the growth to 2036 comes fromRevenue added between 2026 and 2036. Market value 2026: USD 251 mn. China: +USD 62 mn; South Korea: +USD 29 mn; Japan: +USD 12 mn; Vietnam: +USD 8.0 mn; Singapore: +USD 5.1 mn; 20 other countries: +USD 35 mn; Rest of world: +USD 6.1 mn. Market value 2036: USD 409 mn.Market value 2026251 mnChina+62 mnSouth Korea+29 mnJapan+12 mnVietnam+8.0 mnSingapore+5.1 mn20 other countries+35 mnRest of world+6.1 mnMarket value 2036409 mn

Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.

Competitive landscape

Group 1: Global leaders

  • Alfa Laval
  • SAACKE

Group 2: Regional and specialist players

  • Danstoker
  • Parat Halvorsen
  • Thermax
  • Babcock Wanson
  • Bosch Industriekessel
  • Kangrim Heavy Industries

Group 3: Emerging and niche players

  • Fulton
  • Heatec

Research methodology

Every figure on this page comes from the research framework that we apply to all of the markets we cover. The 2025 base for the marine thermal fluid heaters market is built from the volume sold and the price that buyers pay, and is cross-checked against the size of the wider industry the market belongs to. Where a market can be sized in more than one way, the routes are compared before a figure is set.

The forecast runs year by year from the 2025 base to 2036. Growth in each year reflects demand from the industries that buy the product, adoption of new technology, pricing, regulation and replacement cycles. Volume and price are modelled together, so revenue in each year equals volume multiplied by average price. The 2026 to 2036 compound annual growth rate of 5.0% is calculated from the resulting values.

The market is divided by heating, by vessel, by heat output, by buyer, by oil temperature. The 25 largest countries are ranked by revenue earned from sales to buyers in each country, not by where the product is made. Segment values and country values add up to the market total in every year, and every report is checked for consistency before it is published.

Companies are placed in three groups: global leaders, regional and specialist players, and emerging and niche players. The groups describe how companies compete in the market. They are not a ranking and they are not market shares.

Our analysts also carry out primary research. Customized reports add interviews with key opinion leaders, such as senior executives, technical specialists and buyers, to test the assumptions behind the numbers for the question being asked.

Read the full research methodology

Frequently asked questions

How big is the marine thermal fluid heaters market?

The global marine thermal fluid heaters market is estimated at USD 240 mn in 2025 and USD 251 mn in 2026.

How fast will the marine thermal fluid heaters market grow?

It is forecast to reach USD 409 mn by 2036, a compound annual growth rate of 5.0% from 2026, an increase of USD 158 mn.

Which country is the largest market for marine thermal fluid heaters?

China is the largest market by revenue at USD 90 mn in 2026, 36.0% of the global total. The three largest countries together hold 68.0%.

Which country is growing fastest?

Among the ten largest markets, Vietnam is growing fastest at 7.5% a year from 2026 to 2036.

Which marine thermal fluid heaters segment is largest?

In the by heating split, Oil-fired is the largest segment with 46.0% of 2026 revenue.

Who are the leading marine thermal fluid heaters companies?

Global leaders include Alfa Laval, SAACKE.

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