Waterproof heater for pergola

Mon, 27 Jul 2026 12:03:24 +0800

Getting Your Bathroom Heater Wattage Right

I see it all the time. An engineer specs the exact same heater for a tiny powder room and a massive master bath. It’s a classic mistake. You end up either throwing money away on electricity or standing in a room that just won’t get warm. The trick is to look at the actual size of the room and what it’s made of before picking your lamp.

The Volume Problem

Here is the thing about infrared: it doesn’t actually warm up the air. It warms you and the things around you. In a small bathroom, a 400W to 600W lamp is usually plenty to get you feeling cozy fast. If you try to cram a 1200W lamp into a tiny space, you’ll hit the temperature limit almost instantly. The thermostat will just keep clicking on and off. It’s called “short-cycling,” and it’s a great way to kill your relays and spike your power bill. For the bigger bathrooms, don’t just buy one giant 2000W lamp. That’s a recipe for “hot spots”—where you’re roasting in one corner but freezing in the other. Instead, spread the load. Three 600W units scattered around the room work way better.

Pergola on Outdoor Infrared Heating

Waterproof heater for pergola

Getting Your Bathroom Heater Wattage Right

The Volume Problem