Picking the Right Infrared heater for Your Bathroom
If you don’t match your heater’s wattage to the size of your room, you’re basically just throwing money at the electric company. Bathrooms are tricky. You’ve got steam everywhere and water splashing around, which is why we stick with IPX4 splash-proof housings. They keep the guts of the heater safe from the spray, but the housing itself won’t keep you warm. For that, you need the right wattage.
Getting the Power Right
If you’re dealing with a tiny powder room—anything under 4m²—keep it simple. A 400W to 600W shortwave lamp usually does the trick. Be careful not to go overboard here. If you put too much power in a tiny space, the unit can overheat and just shut itself off. Not exactly the vibe you want when you’re stepping out of the shower. For the bigger bathrooms (6m² to 10m²), you’ll want to bump it up to 800W or 1200W. Here’s the cool part about shortwave radiation: it doesn’t waste time heating up the air. It goes straight for your skin and the surfaces around you. It’s fast. Really fast. But remember, tiled walls and cold floors act like heat sponges, so you need enough power to fight that chill.
The “Hot Spot” Problem
More wattage doesn’t always mean more comfort. A 1200W lamp hits hard. It’s an intense punch of heat, but it creates a “hot spot”—meaning you’re roasting if you stand right under it, but freezing if you move two feet to the left. If you want the whole room to feel cozy, try two 600W lamps spaced apart instead of one giant unit. It spreads the warmth around and feels way more natural.
A Few Real-World Tips
Do yourself a favor and put these on a dedicated circuit. High-wattage lamps pull a lot of juice the second you flip the switch. If your cabling isn’t up to the task, you’ll deal with voltage drops, and that’s a headache you don’t need. And while the IPX4 rating means you can mount them near the shower, don’t get lazy with the junction boxes. Keep them sealed tight. Moisture loves to creep into connections, and that’s the fastest way to burn out your system.