How to Actually Size Infrared Lamps for Your Bathroom
Let’s be honest: there is nothing worse than stepping out of a hot shower into a bathroom that feels like a walk-in freezer. You want that instant warmth, but you don’t want your electric bill to skyrocket. The trick is finding the right balance. We stick with short-wave infrared lamps for this. Why? Because they don’t waste energy trying to heat up damp, heavy air. They go straight for the target—you.
Picking the Right Power
You can’t just grab any lamp and hope for the best. If you go too small, you’re just staring at a lukewarm lightbulb. If you go too big, you’ll bake the ceiling while your toes stay freezing. Here is a rough guide to get you started: For those tiny powder rooms (under 4m²), a250W to 400Wlamp usually does the trick. It keeps the chill away without overheating the space. If you’re dealing with a medium bathroom (4m² to 8m²), you’ll want to bump that up to600W or 800W. Now, for the big master baths or rooms with those soaring ceilings, you’re looking at**1000W+**or maybe a few lamps working together. Just a heads-up: don’t undersize your lamp. If it has to run 24/7 just to try and hit a decent temperature, you’re going to burn out the filament way faster than you should.
The Moisture Problem
Bathrooms are wet. It’s in the name. That’s why the housing has to be IP-rated. We use quartz glass tubes with tight seals to keep moisture away from the electrical guts. It’s the only way to make sure things stay safe. But here’s the catch: those waterproof seals can trap heat inside the fixture. A high-wattage lamp in a tight box runs much hotter than one in an open fitting. Just make sure your wiring and the materials you’re using can actually handle the heat of the lamp you picked.
Making it Work
To get your money’s worth, think about where you’re mounting the lamp. Infrared heat travels in a straight line. If you mount the lamp too high, that warmth disappears before it ever reaches you. You want the “throw” of the beam to hit exactly where you stand. And a pro tip? Hook it up to a timer or a humidity sensor. There’s no point in heating an empty room. It saves power and keeps the lamps lasting longer. Simple as that.