My favorite kerosene lamp is the Dietz Original lamp. This classic lamp works indoors and outdoors, through wind and rain. At less than a foot tall, this little lamp’s 8 ounce fuel capacity gives you an 11 hour burn time. The heat output is around 900 BTU’s per hour, and it puts out an average of 7 Candle Power with ½ inch of burning wick exposed. Approved fuels for oil lamps include non-dyed (clear) kerosene, Klean-Heat kerosene substitute, standard clear lamp oil and citronella oil (for outdoor use only). You may also want to burn paraffin oil (Wax Oil, Nowell's, Ultra-Pure, Tropical Lights, etc.), but keep in mind that it may only burn half as bright of any of the approved fuels listed above. Paraffin oil is thicker; and its flash point is 100 degrees higher than kerosene. This inhibits the capillary action of the wick, and will cause lanterns with 7/8" or larger wick to burner improperly and erratic. Once a wick is contaminated with paraffin, it must be replaced in order to burn properly on a different fuel.