Why you should ditch resistance wires for IR heating tubes
Most convection ovens are still stuck using those old-school resistance wires. The way they work is pretty inefficient: the wires heat the air, and then the air eventually heats your part. It’s slow. Honestly, you’re spending a ton of money just heating up the empty space inside the oven rather than actually working on the product. Switching to infrared (IR) heating tubes flips the script. Instead of waiting for the air to warm up, IR tubes send heat straight to the target. It’s direct. It’s fast. Let’s talk about your power bill. Resistance wires take forever to warm up. You’re basically paying for electricity while you sit around waiting for the oven to hit the right temperature. IR tubes, on the other hand, hit their peak in seconds. Think about it this way: if you can shave your heating window down from 20 minutes to 12, you’re using way less power per part. In a high-volume shop, that adds up to a massive difference in your monthly costs. But, there is a catch. Because IR tubes pack so much heat into a small space, they’re a bit more aggressive. You can’t just swap the tubes and call it a day. You’ll need a PID controller that can keep up with that speed. If your sensors are sluggish, you’ll blow right past your target temperature and end up scorching your materials. Not a great look. The maintenance side of things is where this really wins. If you’ve ever dealt with old resistance coils, you know the drill. They sag, they snap, and when one goes, you usually have to tear down the whole heating bank. It’s a nightmare. IR tubes are modular. If one burns out, you just pull it and pop in a new one. No need to strip the entire oven. Your downtime stays low, and your stress levels stay even lower. One quick tip before you dive in: check your power draw. High-wattage IR tubes can create a bit of a surge when they kick in. Just make sure your existing wiring and breakers can handle the load. If you match the tube length and voltage to what you already have, the install is pretty painless.