Infrared panel 400 W for targeted heat
A 400 W infrared panel is a compact solution for local heating. The panel radiates heat towards people, furniture, and walls, without fan noise. This makes it suitable for a small bedroom, hallway, hobby room, bathroom, or workspace. Warmteshop helps customers in Belgium and the Netherlands choose the right power output, size, and appropriate control system.
Four hundred watts is particularly suitable when you want to heat a single zone rather than an entire home. The exact application depends on insulation, ceiling height, windows, and the desired temperature. Therefore, read below how to realistically assess the capacity.

The choice in brief: first, measure the room. Next, check the insulation. Additionally, determine whether the panel will serve as primary or supplementary heating. Furthermore, choose wall or ceiling mounting. Next, configure the thermostat. The unobstructed line of sight also plays a role. Finally, check the electrical connection. This ensures a 400 W infrared panel suits your needs. This prevents unnecessary consumption. Moreover, the heat remains comfortable. That is why a quick calculation is worthwhile. Then you can fairly compare models.
How does a 400 W infrared panel work?
The electric element heats the panel as soon as the thermostat calls for heat. The surface emits long-wave infrared radiation. This radiation is absorbed by people and surfaces in the zone. Subsequently, walls and furniture return a portion of the heat to the room. As a result, the sensation of heat is different from that of a heater that primarily moves air.
An unobstructed view of the zone to be heated is important. Therefore, do not place the panel behind a cupboard or thick curtain. Furthermore, the thermostat sensor must be mounted in a prominent location, away from direct sunlight and drafts.
How much space does 400 watts heat?
A fixed number of square meters does not apply to every home. A well-insulated room with a low ceiling requires less power than a poorly insulated room with a lot of glass. Use an estimate of approximately 4 to 8 m² only as a starting point. Have a heat loss calculation performed for primary heating or if in doubt.
- measure the length, width, and height of the room;
- note exterior walls, windows and doors;
- Map ventilation and drafts;
- include existing heating and heat sources;
- determine the desired temperature and operating hours.
If 400 watts is insufficient, you can consider a second panel or a larger 700 W model . Multiple smaller panels sometimes distribute the heat more evenly and offer more flexibility.
Home and workplace applications
Workplace and home office
A compact panel heats a work zone without heating the entire floor. Combine it with an infrared panel at the desk or additional desk heating. This ensures the solution remains focused during your working hours.
Bathroom and toilet
In a small bathroom, a 400 W panel can provide extra comfort. However, always check the IP rating, safety zones, and local regulations. Use only a model that is specifically suitable for damp environments.
Bedroom, hallway and hobby room
In these rooms, temporary or targeted heat is often sufficient. Set a schedule and choose a location where the panel can radiate freely. Do not hang it directly above the bed and keep textiles at a distance.
Wall or ceiling mounting
Wall mounting is practical when you want to keep the floor clear. A ceiling installation can distribute the radiation evenly over a compact zone. First, measure the load capacity and plan the cable route. Use the original brackets and observe the clearances specified in the manual.
For mains voltage, a qualified electrician must carry out the connection. A plug solution may be possible with some models, but always check the maximum power and regulations. Switch off the power before performing any work.
Thermostat and controls
A thermostat switches the panel on when the measured temperature drops below the setpoint. With a simple model, you control manually; with a programmable thermostat, you create a daily or weekly schedule. A version of an infrared panel with a thermostat can be interesting if you desire more control over zones. For a second control loop, you can again use a thermostat for infrared panels . You can find a panel with integrated lighting under infrared panels with lighting.
Place the sensor at eye level on an interior wall. Avoid a location directly next to the panel, a window, or a door. Furthermore, the thermostat must be electrically compatible with the type of receiver.
Energy consumption of 400 watts
A 400 W infrared panel consumes a maximum of 0.4 kWh per hour when operating continuously at full power. At a rate of €0.30 per kWh, this amounts to €0.12 per full hour. In practice, the thermostat switches off as soon as the desired temperature is reached. The actual cost therefore depends on insulation, outside temperature, settings, and operating time.
- heat only the zone you are using;
- program a limited reduction during absence;
- limit drafts and heat loss;
- keep the radiating surface clear;
- monitor consumption and adjust the system.
A correctly sized panel prevents the thermostat from constantly calling for maximum heat. Therefore, combine electric heating with insulation and proper control.
Materials and appearance
A 400 W infrared panel is available in various colors and finishes. White is less noticeable against a light wall, while black provides a graphic accent. Glass looks smooth and modern. Choose the finish based on maintenance, interior, and the location where the panel will be installed.
Check the exact dimensions, surface temperature, protection class, and mounting method for each product. This way, you know in advance whether the panel fits in your space.
Maintenance and safety
Dust the panel with a dry, soft cloth. Do not use abrasive cleaners or harsh sprays. Check the mounting, cable, and thermostat annually. Never cover the panel with clothing or other materials. Keep flammable objects and curtains at the prescribed distance.
Do you smell a burning odor, see damage, or does the safety system switch off? If so, switch off the system and have an installer investigate the cause.
Would you like to compare models and service? Read reviews on Trustprofile and then view the full range of infrared panels.
When do you choose a larger panel?
A 400 W model is not the best choice for every room. For high ceilings, lots of glass, or a large living area, a 700 W panel or a combination might be a better fit. A 1000 W panel may be suitable for a larger area. Ceiling, wall, or freestanding mounting also affects the distribution. Therefore, review options for ceiling, wall , and freestanding placement.
Frequently Asked Questions
Is 400 watts suitable as primary heating?
Only in a small, well-insulated zone with sufficient calculated capacity. For an entire home, multiple panels are usually required.
Can I connect the panel to a standard power outlet?
That depends on the model and the installation. Follow the wiring diagram and have mains voltage work performed by a qualified electrician.
Does a 400 W infrared panel make noise?
The panel itself operates silently because it does not use a fan. A thermostat, however, can switch audibly.
How quickly do I feel warmth?
The radiation is felt relatively quickly in the immediate zone. The entire space heats up according to power, insulation, and ventilation.
Choose a 400 W infrared panel at Warmteshop
Warmteshop advises customers in Belgium and the Netherlands on wattage, size, installation, and thermostat. This way, you choose a 400 W infrared panel that suits your space, usage, and interior.