2021 Model; Heating Output: 2.42 - 1.93 kW; Heating Standard: Wood, up to 13.5 sq ft (7 tatami mats), Uses 4 x AA batteries (sold separately); Tank Capacity: 1.2 gal (4 L); Odor cut; Refiling sign; Black mesh guard; Burner with combustion ring; Color ignition / extinguisher / extinguisher button Fire extinguishing; Power supply (approx. 100 V) No need for a heater. Prepare for power outages and disaster preparedness. Comes with 1 year manufacturer warranty