摘要 |
<p>The invention is a portable electrical heater including a portable housing defining an air inlet, an air outlet, and an air flow path therebetween; a blower for circulating air through the air flow path; an electrically powered heater element disposed in the air flow path; and a control board including a selector for effecting operation of the heater, and display means including a digital display. Also included are an ambient temperature sensor and an electronic controller for controlling energization of the display and heater element in response to inputs from the selector and temperature sensor.</p> |