- A vacuum cleaner with a hose and attachments
- A wire brush
- A screwdriver
- A cup
- A rag
- Kerosene or diesel fuel
- A funnel
- A pair of gloves
- Turn off the power to the furnace.
- Disconnect the fuel line.
- Remove the access panel.
- Use your vacuum cleaner to remove all dust, dirt, and debris from the burner chamber.
- Use your wire brush to clean any stubborn deposits.
- Wipe the burner chamber with a rag soaked in kerosene or diesel fuel.
- Remove the nozzle from the burner.
- Use your wire brush to clean the nozzle.
- Wipe the nozzle with a rag soaked in kerosene or diesel fuel.
- Reinstall the nozzle in the burner.
- Tighten the nozzle using your screwdriver.
- Reinstall the access panel.
- Connect the fuel line to the furnace.
- Open the fuel supply.
- Turn on the power to the furnace.
- Check for leaks.
- Remove the filter from the furnace.
- Clean the filter according to the manufacturer's instructions.
- Reinstall the filter.
- Turn on the furnace and let it run for a few minutes.
- Check that the furnace is working properly by adjusting the thermostat and checking for airflow.