Ltpgtthis zibro lc dx320 heater can heat up a volume up to 120 mampsup3 which makes it an ideal highly efficient and economical space heater it features a 24 hour programmable timer and integrated thermostat controller to maintain desired room temperature it offers 5 cycle burning mode high med high med med low low the lcd display allows you to monitor and keep track of all important heater functions once the heater has run 2 hours consecutively the automatic cleaning mod