Why Your Infrared Heaters Actually Die
Ever wonder why bathroom heaters just… stop working? Most people assume the heating element burned out. But that’s rarely the case. The real culprit is usually the lead wire. Here’s the thing: where that wire enters the quartz tube, you’ve got a major heat problem. If the seal isn’t perfect, heat starts creeping up the wire. It basically slow-cooks the insulation until it gets brittle, cracks, and eventually shorts out. The problem with the “cheap” way A lot of budget heaters use basic glue or loose gaskets. They just can’t handle the stress of turning on and off all day. When the heater warms up, different materials expand at different speeds. That creates tiny, microscopic gaps. Since this is a bathroom, moisture gets in. It hits the oxidized wire, sparks an arc, and boom—the insulation melts in a heartbeat. How we do it differently We stopped guessing and started using a multi-stage sealing process. We use high-temp glass-to-metal seals or specialized silicone potting that expands and contracts at the same rate as the quartz. We also crimp and seal the wires in a vacuum. This kills those annoying air pockets and stops the “wicking” effect, which is just a fancy way of saying we stop the heat from traveling up the core to melt the outer jacket. The result? Your wires stay flexible, even after thousands of uses. A quick heads-up on the design There is one catch. Because these seals are so tight and sturdy, the wire is a bit stiffer right at the joint. If you bend these wires at a sharp angle too close to the seal, you might actually crack the quartz tube. You’ve got to give the wiring some room to breathe in your chassis. Don’t cram them into a tiny housing. We suggest leaving at least 20mm of clearance before your first hard bend. Give it a little space, and the seal will do its job.