Electric outdoor heaters commonly use infrared radiation to transfer heat directly towards people and surfaces rather than relying primarily on warming a large volume of surrounding air. This makes radiant heating particularly useful for outdoor seating areas where heated air would quickly disperse.

The perceived warmth still depends on the complete installation. Distance from the heater, orientation, mounting height, wind exposure and whether people are positioned within the radiation field all influence the result.

The first selection step is usually the installation type. Wall-mounted heaters provide fixed directional heat without using floor space, ceiling heaters direct radiant heat from above, while pedestal heaters can be repositioned when the seating arrangement changes.

Choose the basic design before comparing individual models. The available wall or ceiling structure, required heating zone, access to the power supply and need for flexible positioning all influence which type is most suitable.

A wall-mounted infrared heater can direct radiant heat towards a defined seating or standing area while keeping the floor clear. This makes wall installation useful for balconies, terraces and covered outdoor areas where a suitable mounting surface is available.

The permitted mounting height, angle, wall construction and minimum distances vary by model. A wall-mounted heater should only be installed with the brackets and orientation approved for the selected appliance.

Ceiling heaters are designed for overhead installation on suitable covered terraces, balconies, pavilions and similar structures. They keep walls and floor areas free and can direct radiant heat towards a fixed seating area from above.

Mounting height is an important part of the selection. Increasing the distance from the occupied area changes the radiation field and the intensity of the heat that reaches it. Follow the model-specific installation height, suspension method and minimum clearances.

Freestanding and pedestal outdoor heaters are useful where permanent wall or ceiling installation is not required or where the seating arrangement changes regularly. Depending on the model, radiant heat can be directed towards one side, two sides or around a wider surrounding area.

Place freestanding heaters only on a stable, level surface and consider the power-cable route, required clearances and exposure to weather. A mobile design does not automatically mean that the heater may remain permanently outdoors in every weather condition.

Outdoor infrared heaters can produce very different levels of visible light. Conventional short-wave heating elements can create a clearly visible orange-red glow, while selected Low Glare models reduce the amount of visible light emitted into the surrounding area.

Dark infrared heaters provide radiant heat without visible light emission and can be useful where an existing lighting concept should remain visually unchanged. However, light emission is only one selection criterion; heating output, radiation characteristics, wind exposure and installation conditions must also suit the application.

Outdoor heaters are available with different IP protection ratings. These ratings describe defined protection against contact, foreign objects and water, but they do not by themselves define every condition in which an appliance may be installed or left outdoors.

Check the IP rating together with the manufacturer's intended-use and installation instructions. A heater intended for a covered terrace can have different limits from a model approved for a more exposed location, even when both products are marketed for outdoor use.

Infrared radiation does not depend on heating the surrounding air first, but wind can still reduce the warmth perceived by people outdoors. Moving cold air increases heat loss from the body and can therefore reduce comfort even when the radiant heater itself continues to operate normally.

Where possible, plan the heated seating area in a wind-protected position and direct the radiation towards the occupied zone. One well-positioned heater can be more useful than a higher-output appliance whose radiation does not reach the people you want to warm.

Depending on the model, outdoor heaters can offer one or several heating levels as well as functions such as remote control, oscillation, timers or integrated lighting. These features make it easier to adapt the heater to the current seating arrangement and required heat level.

Do not assume that every outdoor heater provides the same controls. Compare the exact model specification and consider which functions are genuinely useful for a fixed wall or ceiling installation and which are more relevant to a movable pedestal heater.

Start with the outdoor area and decide where the radiant heat needs to reach. Then choose the installation type and compare the technical requirements of the available models.

• Choose between wall-mounted, ceiling-mounted and freestanding designs according to the available installation space;
• Match the heating output and stated effective area to the occupied zone and actual outdoor conditions;
• Consider mounting height, distance, orientation and wind exposure when planning the radiation field;
• Compare conventional, Low Glare and dark infrared technologies where visible light is an important selection factor;
• Check the IP rating together with the permitted level of weather exposure for the exact model;
• Observe all specified minimum distances from people, ceilings, walls, furniture and combustible materials;
• Compare heating levels, remote controls, oscillation and lighting only where these functions are provided by the selected heater;
• Use the manufacturer-approved mounting hardware and electrical supply for the intended outdoor location.