Most problems with kerosene heaters are caused by the kerosene. Here are some guidelines to follow:

• Use only perfectly clear K-1 kerosene. Take a glass jar with you to test for clarity, it should be as clear as water. Any yellowish or cloudy kerosene will ruin the wick quickly. After 30 days storage kerosene will begin to decompose and should not be used. When installing a new wick, always refill the heater with fresh K-1 kerosene.
• Small amounts of water can ruin the wick. Water that is trapped in the wick will block the flow of kerosene. This causes low, unevern flames and possibly odor. Also, water condensation can occur in the heater's fuel tank or the kerosene storage can (especially metal ones). The use of proven fuel additives such as WickCleaner and American Wick brand will eliminate any problems caused by water.
• Use only plastic storage cans which have been made specifically for kerosene. The use of other types of containers (i.e. plastic milk jugs, cooking oil bottles, gasoline cans, etc.) will contaminate your kerosene. Small amounts of gasoline or other flammable liquids mixed with kerosene can cause fires, flare-ups and soot. Never use your storage can for anything except pure K-1 kerosene.
• Always follow the rules for safety outlined in your kerosene heater owners manual.