Outdoor Heater carbon infrared heating tube

May 23, 2026

Carbon Infrared Heating Tubes for Outdoor Heaters: Power, Materials, and Installation

We built these carbon infrared heating tubes for one reason: to make outdoor warmth actually feel like warmth. Forget those convection heaters that just push around air. These tubes send heat straight where you need it—onto people and surfaces—so you stay cozy even when the wind won’t quit or you’re in a wide-open space.

Power, Voltage, and Size: The Real-World Details

Here’s the thing about these tubes: they’re all about pairing wattage with the right voltage. That combo is what decides how much heat you get and whether the wiring stays simple. Take the high-wattage models, like the 2500W units. They run on 400V, which keeps the current down. That means the wiring stays manageable, and you don’t have to worry about voltage dropping off over longer cable runs. And the length? It’s matched to the heater’s reflector, usually around 300mm. That size helps focus the beam, so you get intense heat right where you aim it.

What They’re Made Of: Halogen, Coating, and a Smart Connection

Inside, the tube uses a quartz envelope filled with halogen gas. That gas does the quiet work of stabilizing the carbon filament and preventing hot spots, so the tube lasts longer. On the outside, a reflective coating directs infrared energy downward. It boosts usable heat and shields nearby parts from getting scorched. Then there’s the R7s connector. It’s built to handle high heat, installs quickly, and holds steady even when the heater housing is vibrating. No fuss, just a solid connection.

Why They Work So Well Outdoors

When you use these tubes in outdoor heaters, you feel the difference fast. They crank out high heat density and respond quickly, so you warm a specific zone without wasting energy heating the whole air around you. They’re a straightforward drop-in replacement for standard tube lengths. But keep in mind, high power density means you need to plan for airflow and heat shielding around the reflector. Give it space to breathe, and it’ll keep doing its job—keeping you warm, right where you stand.