Why we put our bathroom heaters through the “steam chamber”
Let’s be honest: bathrooms are a nightmare for electronics. You’ve got thick steam, random water splashes, and temperatures that swing from freezing to sauna-hot in ten minutes. Now, you’ll see an “IP65 rating” on the box. That basically means the case keeps out dust and a few splashes of water. But here’s the thing—a rating on a piece of paper doesn’t actually tell you if the heater will still be working three years from now. That’s why we don’t just trust the rating. We put every batch of our infrared lamps through a brutal damp-heat aging test.
The invisible enemy
Water droplets are one thing, but water vapor? That’s the real problem. Steam is tiny. It finds its way through the smallest gaps in seals or gaskets. Once it gets inside, it settles on the electrical contacts and the glass. Then, the heater kicks on. The moisture evaporates, then condenses, then evaporates again. It’s a cycle. And that cycle eats away at the metal terminals. If those connections start to rust or corrode, the electricity struggles to flow. Things get too hot, and eventually, the lamp just burns out way before it should.
How we break things (on purpose)
We don’t just give the units a quick spray with a hose. Instead, we lock them in a climate chamber. We crank the humidity up to 95% and keep the heat high for days on end. We’re looking for any sign of “creepage”—basically, seeing if the electricity starts jumping where it shouldn’t because the internals are saturated. If a seal leaks or a wire starts to degrade, the unit fails. Period. It’s a stress test that lets us simulate five years of steamy showers in just a few weeks.
The trade-off
There is a catch, though. To make these heaters survive the steam chamber, we have to seal them tight. Really tight. But when you seal a heater that well, the heat gets trapped inside more easily than it would in an open-air lamp. Because of that, the internals run a bit hotter. This is why you need to make sure you leave enough breathing room around the unit when you install it. If it’s too cramped, the thermal cutoff switch might trip during a cold winter snap. It’s a choice we made on purpose. We’d rather give up a little bit of “breathability” to make sure your lamp doesn’t short out after one season of steam.