How to Pick the Right Power for Your Bathroom Infrared Heater
Choosing the right wattage for a ceiling heater isn’t some rigid science. It really just comes down to how big your bathroom is and how high your ceilings go. There’s no “perfect” number for everyone. You just want to feel that cozy warmth the moment you step out of the shower without turning your bathroom into a sauna or wasting money on your electric bill. Matching the heat to your space If you’ve got a small bathroom—maybe a guest bath or a tiny powder room—you don’t need a powerhouse. A single 400W to 600W shortwave lamp usually does the trick. But if you’re dealing with a big master bath or one of those open-concept wet rooms, you’ll need more muscle. I’d suggest jumping up to 800W or 1200W. Or, better yet, put in a few lower-wattage lamps. Here’s the thing: you want the heat spread out. If you cram a 1500W lamp into a tiny stall, you’ll feel like you’re standing under a heat lamp at a buffet—scorching in one spot while your toes stay freezing. Not a great feeling. The trade-offs High-wattage lamps are great because they’re fast. Like, really fast. They hit their peak temperature in seconds. But there’s a catch. More power means more pull from your electrical system. You’ll want to make sure your wiring and breakers can handle the load so you aren’t tripping the power every time you want to get warm. One cool thing about shortwave infrared is that it doesn’t bother heating the air. Since heat rises, heating the air is basically a waste of time—it just floats up to the ceiling. Instead, these lamps heat you directly. It’s a much more immediate, comforting sensation. Getting the installation right To get the most out of your heater, you have to think about the angle. If the lamp is mounted too high, the heat loses its punch before it even reaches you. If your ceilings are higher than 2.7 meters, you’ll probably need to bump up the wattage to make up for that extra distance. And a pro tip: use a dedicated controller. A simple timer or a dimmable switch is a lifesaver. It keeps the lamp from running longer than it needs to, which saves your quartz tube from burning out too fast and keeps your power bills in check.