Gas vs Electric infrared heaters: which one to choose for industrial processes?

When choosing between gas-powered and electric infrared heaters for industrial processes, the decision hinges on several key factors: cost, efficiency, environmental impact, installation, control, and application requirements. Here’s a concise comparison to help you to decide.

However, the complexity of the choice cannot be resolved with a few catchy phrases or AI queries. CSI is a company that designs and manufactures gas and electric infrared ovens. CSI is therefore perfectly positioned to assist its clients with this choice. Ultimately, why choose when the two energy sources are complementary? CSI has built several infrared tunnels utilizing the advantages of both gas and electricity...

Energy cost:

Energy cost is the key factor in choosing an energy source.

·         Gas is generally much cheaper than electricity, in most cases a gas-powered infrared oven is preferable to an electric one.

·          Electric power allows for the installation of more energy-efficient emitters through more responsive and precise processes, and the ability to tailor energy consumption to specific areas.

Efficiency and heat output:

Gas infrared oven manufacturers will tell that the gas infrared is more efficient and electrical infrared oven manufacturers will tell that the electric infrared is more efficient.

There is no truth on this point. Efficiency must be calculated in the real working conditions.

·         Depending on the kind of parts (metal, plastic, textile), their quantity, their weight, size and shapes, their emissivity, their diversity, and quantity,

·         Depending on the heating curve to follow, if there are solvents, water,

·         Depending on the available space, the part thickness to heat, the environment,

The efficiency will be better with gas or electricity…

Environmental impact:

·         Gas infrared ovens emit CO₂, NOx, are not suitable for zero-emission

·         Electric infrared ovens emit no CO₂, can be powered by renewable energy.

Installation and maintenance of infrared ovens:

• Gas infrared ovens require gas lines, ventilation, and regular maintenance (burner cleaning). Risk of gas leaks, combustion byproducts, and fire hazards (need detectors and safety devices regularly checked). The installation is more complex and expensive.
• Electric infrared ovens need low maintenance (if they are well designed). The installation is easier and cheaper but the high electrical loads may require circuit upgrades.

Production conditions:

• Gas infrared has slower response time, less precise temperature control but is better for large-scale and complex parts.
• Electric infrared permits instant on/off (short IR), precise temperature control, and zoning capabilities. It is ideal for clean and controlled environments (e.g., food processing, electronics manufacturing).