Getting Your Bathroom Heater Right (Without Blowing a Fuse)
When you’re picking out an infrared heater for the bathroom, your first instinct might be to go for the highest wattage possible. But here’s the thing: more power isn’t always better. It’s really about finding that sweet spot where the room feels cozy, but you aren’t wasting energy or overheating the space. And since we’re talking about bathrooms, we have to talk about water. That’s why we stick to IPX5-rated gear. It’s basically a fancy way of saying the heater can handle a stray spray of water without turning into a dangerous mess.
Picking the right power for your space
If you’ve got a tiny bathroom—you know, those compact ones under 4m²—you don’t need a powerhouse. A 250W to 400W shortwave lamp usually does the trick. If you go too big in a small room, the unit can actually get too hot and shut itself off. Not exactly the vibe you want when you’re stepping out of a shower. For the bigger bathrooms, anywhere from 6m² to 10m², you’ll want to bump things up to 600W or even 1000W. You’ve got two ways to do this. You can go with one big, powerful tube, or a few smaller lamps working together. I actually prefer the bank of lamps. Why? Because you can wire them in stages. That way, if it’s just a bit chilly, you only turn on one. If it’s freezing, you flip them all on.
The “Water Problem”
Water and electricity are a nightmare combination. That IPX5 rating is there to make sure that if a water jet hits the heater from any angle, it stays safe. We make this happen by using high-temp silicone gaskets to seal the housing and cabling that doesn’t mind a bit of moisture. But please, make sure your wiring is grounded. These shortwave lamps get hot—fast. If a seal ever fails and water hits that energized quartz tube, your circuit breaker is going to pop instantly.
A quick word on your electrics
The great thing about shortwave IR is that it feels instant. It hits your skin directly, so you feel that warmth the second you flip the switch. But there is a catch. High wattage means a heavier pull on your electricity. If you try to run 2000W of heat on old, tired wiring, you’re probably going to trip the breaker. Before you install a high-power setup, just double-check what your circuit can actually handle. It’ll save you a lot of headache later.