When you’re picking out an infrared heater for your bathroom, your first instinct might be to just grab the most powerful one on the shelf. But honestly? That’s usually a mistake. It’s more about finding the right fit for your space. If you overdo it, you’re just throwing money away on your electric bill. If you underdo it, you’re still shivering while you dry off. Getting the size right Think about your room. If you’ve got a tiny powder room—something under 4 square meters—a small 250W to 400W lamp is plenty. Here’s the thing: if you cram an 800W unit into a tiny closet-sized bathroom, the air gets saturated with heat way too fast. Your thermostat will start flipping on and off every few seconds. It’s called short-cycling, and it’s a great way to burn out your lamp’s filament long before it should. For those bigger bathrooms (around 6 to 10 square meters), you’ll want to step up to something in the 600W to 1000W range. You need that extra punch to push through the cold air gap between your ceiling and where you’re actually standing. Where to put it Remember, infrared is different. It doesn’t heat the air; it heats you. Because of that, placement is everything. If you mount a weak lamp too high up, the heat just vanishes before it ever reaches your skin. You want a clear, direct line of sight from the lamp to where you’ll be standing. And since we’re talking about bathrooms, moisture is the enemy. We use sealed quartz envelopes to keep steam away from the electrodes. If that seal isn’t tight, the lamp will likely pop the second it gets hot. Not a sound you want to hear in a quiet bathroom. The hidden catch Higher wattage feels great because the heat is instant. But it puts a lot of stress on your circuit breaker. If you’re planning to install a few 800W units in one area, please check your wiring. If the wires are too thin, they’ll actually heat up under the load. This causes a voltage drop, meaning you might be paying for a high-wattage lamp on paper, but you’re not actually feeling that heat on the floor.