The Kelvin was also one of the few commercially available space heaters I’d found that uses far infrared heat, which penetrates the skin more deeply and directly than the heat from the space ...

Nobody likes a chilly shower. Here's how heat lamps can keep your bathroom warm and toasty no matter what time of year it is.

[Michael Skrepsky] wanted an infrared rework station ... an Arduino. An old bathroom heater, along with a 600W and 100W halogen bulb work as heaters. The Arduino runs two PIDs.