Surface offers a diverse line of industry-leading heat treat and thermal processing equipment built on 110 years of engineering expertise, industry knowledge, and technical support. From aerospace and automotive to fasteners, gears, and powder metals, we serve the industries that depend on precision heat treating every day. Talk to our team about your objectives and we can custom design a solution for you today.
Furnace Selection Guide
Let’s find an innovative, efficient heat treat furnace solution for your thermal process needs. Our furnace selection guide is a great place to start.




Customer Service
As your heat treatment furnace manufacturer, Surface has a top-notch customer service department, backed by decades of experience and historical documentation.
Learn MoreAftermarket Parts
Surface genuine replacements parts are backed by 110 years of knowledge and experience that only an OEM can provide.
Learn MoreRebuild/Retrofit
Surface provides maintenance and upgrades by offering retrofit packages. Our technicians have the expertise to complete Machine Repair Overhaul (MRO) and furnace overhaul.
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Your partner for new ideas, technical expertise, and aftermarket service.
Since 1915, Surface Combustion has been solving thermal processing challenges for a wide range of industries. That’s 110 years of moving our customers forward with trusted experience and expertise. How can we help you?

Built to Perform
Why choose Surface?
We are the standard heat treat leaders have trusted for 110 years. When your operations demand consistent metallurgical results, Surface Combustion delivers industry leading solutions, reliable service, and family-driven values, all built into equipment manufactured right here in the USA.
Over 675 Patents
Over 300,000 Installations
Over 75 Industry Recognized Trademarks
Installed in 50 Countries Worldwide
Surface Solutions
Insights & Expertise
We’re a Proud Corporate Sponsor of Heat Treat Mexico 2026
Optimize Energy Use With Surface Combustion
Surface Gas Heated Vacuum Technology Leads the Industry
Get to Know Heat Treatment!
