How to actually pick the right wattage for your bathroom heater
When you’re shopping for an infrared bathroom heater, your first instinct might be to go for the biggest number on the box. But here’s the thing: bigger isn’t always better. It’s more about the vibe of your room. We’re talking about the size of the space and what your walls are made of. These heaters don’t just blow hot air around; they send heat directly to you and the surfaces around you. It’s that instant, cozy warmth you feel the second you flip the switch. Finding the sweet spot for your space If you’ve got a tiny bathroom—say, under 4 square meters—stick with something between 400W and 600W. If you go too high in a small room, it gets oppressive. You’ll end up with these weird heat spikes that make the room feel like a sauna, and you’re just throwing money away on electricity. For the larger bathrooms (around 6 to 10 square meters), you’ll want to bump that up to 800W or 1200W. But wait, there’s a catch. Think about your windows and how well your walls are insulated. If you have high ceilings or a drafty window, a weak lamp will just struggle. It’ll run non-stop trying to get the room warm, which wears out the filament way faster. Dealing with the damp Bathrooms are wet. We get it. That’s why we use sealed quartz glass and heavy-duty gaskets. It keeps the moisture far away from the electrical bits where it doesn’t belong. We also use short-wave infrared. Why? Because it cuts through the steam and humidity much better than other systems. You actually feel the heat even when the room is foggy. One quick tip: check your wiring. A 1200W lamp pulls a lot more power than a 400W one. If your wires are too thin, you’ll get a voltage drop. That means your heater won’t actually hit the temperature it’s supposed to. Speed vs. Your Electric Bill Higher wattage means you get warm faster. Period. The downside is that initial surge of power. A 1200W unit can be a bit hard on your circuit breaker when it first kicks in. If you want to keep your energy bills down, try using a few medium-power lamps instead of one giant one. Pair them with a decent thermostat that cuts the power the moment the room hits a comfortable 24°C. It’s a much smoother way to stay warm.