Infrared outdoor heating is the most effective way to deliver real comfort on terraces, pergolas and commercial outdoor areas. Unlike convective systems, it transfers heat by radiation to people and surfaces.
Radiation vs convection: the core principle
An infrared heater emits thermal radiation absorbed by solid bodies (skin, clothing, furniture, floors). It does not “heat the air”, which is the main reason it performs well outdoors.
Short / medium / long wave: what matters outdoors
Outdoors requires enough radiant intensity to compensate for an uncontained environment (wind, infinite air volume). In practice:
- Long-wave IR: typically too diffuse for open outdoor spaces.
- Medium-wave IR: effective in sheltered or semi-sheltered areas.
- Short-wave IR: strongest option for open outdoor and professional use.
Why watts alone don’t predict comfort
Two heaters rated at 2400 W can feel completely different. Comfort depends on:
Optics & distribution
Beam angle, focus, reflector design, and uniformity over the occupied zone.
Thermal stability
Temperature hold, element quality, cycle behaviour, and performance over time.
Measured advantages and real limitations
| Criteria | Infrared | Gas / convection |
|---|---|---|
| Immediate comfort | High | Variable |
| Wind sensitivity | Low | High |
| Heats ambient air | No | Yes |
| Targeted comfort | Excellent | Average |