Stop Burning Profits: Maximize Fired Heater Efficiency with Proven Solutions

Patented technology • Measurable ROI • Trusted by top refineries

Furnace Improvements Services (FIS) has been helping refineries improve the efficiency, reliability, and performance of fired heaters for over 29 years. With a focus on solving complex design and operational challenges in the oil and gas industry, our team brings deep engineering expertise backed by proven, patented technologies.

Our Services

  • Fired Heater Revamp

  • Boiler Revamp

  • New Heater and Boiler Design

  • Peep Doors and Spare Parts

  • In-person and Virtual Training

  • Decarbonization Solutions

  • Engineering Studies

  • Troubleshooting

Our Scope

  • Process Engineering

  • Mechanical Engineering

  • Structural Engineering

  • 3D Modeling

  • CFD Modeling

  • Project Management


By the Numbers

500+

Heater Projects Completed

29

Years in Business

15

Countries Served

4

Patented Technologies

2

Global Offices

Our Services

Since 1996, FIS has specialized in engineering solutions that improve the reliability, efficiency, and lifespan of fired heaters and boilers in the oil and gas industry. We execute turnkey projects covering the engineering, procurement, supply, and construction of fired heaters.

All design and engineering work—including process, mechanical, structural, CFD analysis, 3D modeling, and detailed drawings—is performed in-house. Our services include engineering studies, revamps, equipment supply, troubleshooting, and training. FIS delivers technically sound, cost-effective solutions tailored to the full lifecycle of fired heater systems.

Our Engineering Capabilities includes:

Our Clients

FIS has served clients such as Citgo, Valero, Phillips 66, Alon USA, Frontier, and Total Energies and many more

FIS Patented Technologies

Inclined Firing SystemReduces flame impingement and high tube metal temperatures...

Inclined Firing System

Reduces flame impingement and
high tube metal temperatures

Split Flow TechnologyIncreases capacity with limited process side pressure drop...

Split Flow Technology

Increases capacity with limited
process side pressure drop

Flue Gas InjectionReduces coking & tube metal temperatures...

Flue Gas Injection

Reduces coking & tube
metal temperatures

Smart Stack DamperSafe & Reliable Draft Control System...

Efficiency Improvement Damper

Safe & Reliable Draft
Control System

Testimonials

  • First of all I would like to congratulate you on the job you did at Alon for the ULSD Heater. Jeff Brorman could not stop complimenting the performance of the heater two weeks ago when Cameron and I were in Big Spring.

    Bill Lozada - Commonwealth

  • I’m glad to report that our #4 Platformer Heater is doing very well. It runs well and it looks great. It’s right outside my window as you know so every day I’m reminded of you and the fine job you did for us. There’s no doubt that the idea has many benefits.

    Ed De la Cruz - Citgo

  • The performance of the VF4 H28 heater since startup has been fantastic! The stack temperature is 370-380 F and the fuel gas usage has dropped about 40% from the old heater. This is one of the most efficient heaters in the refinery. Great job!!!

    Site Engineer - ConocoPhillips WRB Refinery

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