uncooled

/ʌnˈkuld/
adjective
  1. Not cooled; not having been made cooler, especially in reference to engines, electronics, or other equipment that normally require cooling.
    • Many infrared cameras use uncooled sensors to reduce cost and size.
    • The uncooled laser diode failed during the test because of excessive heat.
    • The uncooled engine overheated after running for an hour.