The moment the air bites and you just want to linger on the patio a little longer, your heater can’t waffle. Infrared space heaters give you that direct, directional warmth, but the real decider for long-term reliability is something most people never see: how the power leads are sealed. What matters under the hood With infrared, the element sits close to the output, so internal temps climb fast. If the lead seal isn’t built in at the factory, it dries, cracks, and starts letting moisture in. We make the seal part of the assembly, not an add-on, using materials rated for high heat and a repeatable compression method that keeps the joint stable through repeated heat cycles. That keeps hot spots down at the termination points and maintains solid electrical integrity, even after hundreds of hours. Why this matters in the real world Evenings on the patio, covered porches, drafty garages—all of them throw the same curveballs: temperature swings and humidity that test every seam. With a properly sealed lead system, the heater stays steady and quiet, so you get infrared warmth without the nagging worry of intermittent faults. For you, that translates to fewer surprise shutdowns, longer service life, and a heating experience that feels dependable—warmth where you want it, when you want it. A few field-tested notes Even the best seal only performs if the installation is right. Keep the unit on a stable, level surface and follow the wiring instructions for the correct plug and circuit rating. If you’re running the heater in fully exposed conditions, pick a model with the appropriate IP rating and always leave clearance around air intakes and where the cord enters the unit. And treat the cord with respect—kinks and repeated yanking will work the seal over time.