Mastering the Spectrum: Convection, Infrared, and the Physics of Gas Ranges

Update on Jan. 14, 2026, 9:02 a.m.

Cooking is, at its fundamental level, physics. It is the transfer of energy from a heat source to food to induce chemical changes—protein denaturation, sugar caramelization, and fat rendering. The quality of the final dish is often determined not by the chef’s hand, but by the precision and variety of energy transfer methods available. This is why the gas range remains the preferred tool of professionals. It offers immediate, visual control over thermal energy.

However, modern “pro-style” ranges like the SIMOE AMSE313GRE have evolved beyond simple flames. They have become complex thermal systems that utilize the full spectrum of heat transfer: conduction, convection, and radiation.

Knobs and Burner Control Details

The Power of Radiation: The Infrared Burner

Most home cooks are familiar with conduction (heat moving from the grate to the pan) and convection (hot air moving around food). But radiation is the secret weapon of the steakhouse, and it is increasingly finding its way into high-end residential units via the infrared burner.

Unlike a standard gas burner that heats the air and the grate (which then heats the food), an infrared burner uses a ceramic tile or metal mesh to convert gas energy directly into infrared radiation. * The Physics: According to a 2021 study in the Journal of Food Engineering, infrared radiation transfers energy at the speed of light, bypassing the air entirely. * The Result: This allows the burner to reach surface temperatures significantly higher than standard flames, often exceeding 1600°F in commercial applications. On the SIMOE AMSE313GRE, this technology is utilized to provide intense, directional heat. * The Application: This is critical for searing. The intense radiation instantly vaporizes surface moisture and triggers the Maillard reaction (browning) before the interior of the meat can overcook. It creates the “crust” that standard burners struggle to achieve.

The Dynamics of Convection: Moving Air

While the stovetop handles conduction and radiation, the oven’s primary domain is convection. A standard “thermal” oven relies on natural convection—hot air rises, cool air sinks. This often leads to stratification, where the top rack is hotter than the bottom.

The commercial convection fan integrated into the SIMOE’s main oven changes this fluid dynamic. By actively forcing air circulation, the fan disrupts the “boundary layer” of cool air that naturally insulates food. * Efficiency: This accelerates heat transfer, reducing cooking times by up to 25%. * Uniformity: It ensures that the temperature is consistent throughout the 4.8 cu. ft. cavity. Whether you are baking three racks of cookies or roasting a chicken, the heat exposure is identical.

BTU: The Measure of Potential

The versatility of a gas range is defined by its bandwidth—the difference between its highest and lowest output. This is measured in BTUs (British Thermal Units).

The SIMOE AMSE313GRE features a spectrum of burners ranging from 12,000 to 18,000 BTU. * High End (18,000 BTU): This is brute force. It is required to rapidly boil large pots of water or to recover heat quickly when cold ingredients are added to a wok. Without high BTUs, the pan temperature drops, and food “steams” instead of frying. * Low End: Equally important is the ability to sustain a low flame without extinguishing. This is necessary for simmering sauces or melting chocolate, processes that require gentle, sustained thermal input to prevent scorching.

The Thermal Mass of Cast Iron

Finally, the material science of the cooking surface plays a vital role. Heavy-duty cast iron grates act as a thermal battery. Because cast iron has a high volumetric heat capacity, it absorbs and holds energy. When you place a cold pan on the grate, the iron helps maintain the temperature, smoothing out the fluctuations of the gas flame. This provides a stable, conductive platform that is essential for consistent stovetop performance.

Conclusion: The Integrated Thermal Machine

A modern 48-inch range is more than just a stove; it is a machine that allows the home cook to manipulate physics. By combining the immediate responsiveness of gas, the searing power of infrared radiation, and the uniform efficiency of convection, appliances like the SIMOE AMSE313GRE bridge the gap between residential constraints and professional capabilities. It empowers the cook to choose the exact mode of heat transfer required for the perfect dish.

Harness the full power of physics in your cooking. Explore the thermal versatility of the SIMOE professional gas range.