Very lightly used. This rugged heater from Dyna-Glo cranks out heat where you need it. Offering variable heat settings from a lower backround warmth to up to 80,000 BTUs for really warming up an outdoor worksite or large indoor space, this heater keeps the chill at bay. The automatic shutoff and sturdy base ensure safe operation while the internal windshield helps direct heat outwards. Simply connect the included hose and regulator to your propane tank and ignite with the piezo ignition - no electricity needed.