How to Actually Size Infrared Heat Lamps for Your Bathroom
When it comes to picking a heat lamp, the instinct is usually to just buy the biggest, most powerful one on the shelf. But that’s a mistake. I’ve seen too many people overdo it. They end up wasting a ton of electricity and creating these annoying “hot spots” where you feel like you’re being grilled in one spot while your toes are still freezing. It’s all about the balance between the room’s size and how high your ceilings are. Finding the right power If you’ve got a small bathroom—think under 4m²—a 400W to 600W shortwave lamp is usually plenty. The best part? They hit you instantly. You don’t have to turn them on twenty minutes before you jump in the shower to “warm up the room.” For those medium-sized spaces (4m² to 8m²), you’ll probably want to bump that up to 800W or 1000W. Now, if you’re dealing with a massive luxury bathroom or those trendy high ceilings, things get a bit trickier. Heat fades fast as it travels through the air. Instead of slapping in one giant 2000W monster, we usually go with a grid of smaller 600W lamps. It spreads the warmth around better and keeps you from getting scorched if you stand too close to the one big unit. The stuff people forget Here’s the thing about high wattage: it’s a heavy lift for your electrics. If you try to run three 1000W lamps on a thin wire, you’re probably going to trip a breaker or deal with voltage drops. Not a great way to start your morning. Then there’s the steam. Bathrooms are wet, obviously. You need lamps with a proper IP rating so they don’t fry the moment they hit some humidity. We stick with quartz glass because it handles the “thermal shock”—that sudden jump from a cold room to intense heat—without cracking. Saving a bit of cash Since infrared heat warms objects (like you) rather than the air, you can be smart about it. Don’t just heat the whole room. Position the lamp exactly where you stand. Pair it with a motion sensor or a simple timer, and you’re done. You stop paying to heat the walls and start focusing all that warmth right where it belongs. Your power bill will thank you.