Glass walls make a sunroom feel open and bright, but comfort becomes a moving target. Heat rises and slips away fast, so the floor stays chilly even when the air feels warm. You crank the heat, watch the energy bill climb, and still end up shivering once the sun dips. Infrared electric heaters break that cycle by warming people and surfaces first, not just the air. What matters, technically Infrared electric heaters deliver radiant heat that travels outward at the speed of light, warming objects directly. Many modern units use a carbon fiber element or a quartz tube to produce short- or medium-wave infrared warmth, so you get quick response and even coverage. Size the unit to your room—typically 1,500 to 3,000 watts for sunrooms—and look for a built-in thermostat to keep temperature steady. For sunrooms, an IP rating for outdoor-rated protection against moisture is a must, and safety features like tip-over protection and overheat cut-out keep operation worry-free. Why this works in a glass-heavy space In a glass-heavy loft, the real problem is heat loss, not just cold air. Radiant heat from an infrared electric heater targets the floor, furniture, and you, so comfort hits fast. Because the warmth is directed where you feel it, you can hold a comfortable temperature without overheating air that then escapes through the glass. The payoff is a more stable feel underfoot, lower running costs compared to pushing heat that constantly leaks out, and a room that stays usable earlier in the season and later into the evening. Things to know Infrared warmth works best when the heater has a clear line of sight to the people and surfaces you want to warm, so placement matters. For best results, mount the unit high on a wall or ceiling with an unobstructed angle over the seating area, and keep it at least three feet from combustible materials. Most units plug into a standard outlet, but higher-wattage models may require a dedicated circuit. Pairing the heater with a sunroom insulating blind or curtain helps keep the warmth in after dark, and a timer or smart plug makes daily comfort effortless.