Glass Furnace - EcoMelt®
The EcoMelt® Furnace improves your bottom line while producing cutting-edge, high quality products
Glass Melting Made Easy and Repeatable

Stewart Engineers applies 36 years of experience to design, develop, and deliver superior melting furnaces and services to the glass industry. EcoMelt® furnaces are regenerative, multi-port, cross-fired, and designed for long-life. Stewart Engineers can assist customers with specifying tonnage, fuel source, tints, and automation level to suit their market needs. Stewart Engineers will design, develop, and install an EcoMelt® furnace to fit your needs.

EcoMelt® Technical Capabilities
EcoMelt® furnaces employ a high degree of automation to control pressure, temperature, and glass level with minimal operator intervention. Furnace automation results in increased yields, decreased operating expenses, and longer lifespan.
Furnace Pressure Precision +/- 0.30 mmH2O Canal Temperature Variation +/- 0.7 C Glass Level Variation +/- 0.15 mmEcoMelt® Financials
High yields and long furnace life are necessities for a float facility to reach full profit potential. Stewart Engineers achieves these objectives through:
- Robust Design
- Meticulous Refractory Selection
- User Friendly Design
- Detailed Operational Training
- Comprehensive Maintenance Training With A Low Maintenance Design
- Precise Furnace Sizing
EcoMelt® furnaces can attain 20-year melting campaigns. Long campaigns between rebuilds provide the highest return on investment. Lost sales revenue during a rebuild exceeds rebuild capital expenditures.

Stewart Engineers specializes in achieving high yields by utilizing the EcoMelt® furnace technology with expert operational and maintenance training. This combination results in up to a 10% increase in yields and millions in additional sales revenue per year. Our premium technology and expertise will serve as the foundation to ensure superior furnace performance, boost yields, and lengthen furnace life.
EcoMelt® Image Gallery






EcoMelt® Commercial Glass Applications

Coated Glass
EcoMelt® melting furnaces are designed to interface with Stewart's AcuraCoat® CVD coating systems in order to produce value-added coatings such as photovoltaic, energy saving architectural, and appliance glass.

Architectural Glass
EcoMelt® melting furnaces can yield all thicknesses within the common range used for architectural glass. Thicker glasses are often used for specialty architectural applications such as impact resistant glass.

Automotive Glass
EcoMelt® melting furnances produce high quality, low defect glass needed for automotive applications. Automotive glass is commonly tinted, laminated, and bent.

Electronics Glass
EcoMelt® melting furnaces are capable of producing ultra-thin glass, which is commonly used for electronics display screens, along with specialty glass compositions such as borosilicate and aluminosilicate.
EcoMelt® Features
- Process Automation
- 3D Part & Fully-Mated CAD Preventing Interferences
- Equipment Integration with StewartFloat® Tin Bath
- Operational and Maintenance Training
- Operational Commissioning and Assistance
- Energy Efficient Design
EcoMelt® Melting Furnace Downloads

EcoMelt® Melting Furnace
EcoMelt™ furnaces employ a high degree of automation to control pressure, temperature, and glass level with minimal operator intervention. Furnace automation results in increased yields, decreased operating expenses, and longer lifespan.

Float Glass Applications
Float glass applications include architectural, automotive, solar, electronics, appliance, and furniture. Stewart Engineers designs industry-leading equipment for each customer’s desired applications...

EcoMelt® Ultra Clear Glass
The EcoMelt® Energy Efficient Ultra Clear glass is a Low Iron float glass that is made using a very low level of iron oxide. The outcome is