Burner Fuel Filter for Diesel Burners | Wisdo Merchants
Technical Specifications
| Property | Value |
|---|---|
| Type | Burner fuel (oil line) filter |
| Function | Removes dirt, rust and sludge from diesel before the burner pump |
| Position | In the oil line, between the tank and the burner pump |
| Fuels | Diesel (light fuel oil) and kerosene |
| Uses | Oil burners on boilers, ovens, dryers and heaters |
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Burner Fuel Filter for Diesel and Oil Burners
Diesel tanks collect dirt, rust, sludge and water over time. Without a filter, that debris travels straight into the burner. It wears the pump gears, blocks the nozzle and spoils the spray, causing smoky flames, lockouts and costly repairs. A burner fuel filter catches the dirt before it reaches the pump. At Wisdo Merchants, we supply burner fuel filters to boiler technicians, bakeries, hotels, laundries and factories across Nairobi and Kenya.
A fuel filter sits in the oil line between the tank and the burner pump. Diesel flows through a fine filter element, which traps particles and sludge while clean fuel passes through. As a result, the pump and nozzle stay clean, the spray stays even, and the burner keeps firing reliably between services.
Features and Benefits of the Burner Fuel Filter
- Protects the pump. It stops grit and rust from wearing the fuel pump gears.
- Protects the nozzle. Clean fuel keeps the tiny nozzle orifice clear for a fine, even spray.
- Fewer lockouts. A clean fuel supply reduces flame failures and nuisance shutdowns.
- Lower repair costs. A cheap filter saves expensive pump and nozzle replacements.
- See-through bowl. You can check for dirt and water at a glance, without opening the filter.
- Easy servicing. Unscrew the bowl to replace the filter element in minutes.
For technicians, this means fewer breakdowns between services. Meanwhile, owners get reliable heat and lower maintenance bills.
Technical Specifications
| Property | Value |
|---|---|
| Type | Burner fuel (oil line) filter |
| Housing | Metal head with a clear see-through bowl |
| Element | Replaceable internal filter element |
| Connections | Threaded inlet and outlet ports in the head |
| Function | Removes dirt, rust and sludge from diesel before the burner pump |
| Position | In the oil line, between the tank and the burner pump |
| Fuels | Diesel (light fuel oil) and kerosene |
| Uses | Oil burners on boilers, ovens, dryers and heaters |
Applications of the Burner Fuel Filter and How to Use It
- New burner installations between the tank and the burner
- Annual burner servicing to replace a clogged filter element
- Fixing low pump pressure caused by a blocked filter
- Protecting new pumps and nozzles after a repair
- Sites with old or dirty fuel tanks
Fitting a Burner Fuel Filter
Picture a technician servicing a laundry boiler whose burner pressure keeps dropping. First, they switch off the burner and close the fuel valve at the tank. Next, they place a tray under the filter, open the housing and find the element clogged with sludge. After that, they fit a new element or a new burner fuel filter, checking the flow arrow points towards the burner. Finally, they open the fuel valve, bleed the air from the line and pump, and fire the burner to confirm steady pressure.
Protecting the Rest of the Fuel System
A filter works alongside the other fuel-system parts. Connect it to the burner with our braided hose for burner fuel lines. It protects the pump, so a worn pump that has already suffered can be replaced with our Suntec AS47 and AS67 pumps. A blocked nozzle downstream needs our 60° solid cone nozzles.
Safety and Handling
- Close the fuel valve first. Isolate the fuel supply and switch off the burner before opening the filter.
- Catch spills. Use a drip tray and clean up any diesel straight away.
- Check the flow direction. Fit the filter with its arrow pointing towards the burner.
- Bleed the air. Air left in the line after a filter change causes lockouts.
- No naked flames. Keep sparks and flames away from fuel lines and spills.
Frequently Asked Questions
How often should I change the burner fuel filter?
Most technicians change the element at every annual service. Change it sooner if the fuel is dirty or the pump pressure drops.
What happens if I don’t use a filter?
Dirt and rust reach the pump and nozzle. That wears the pump, blocks the nozzle and causes smoky flames and lockouts.
Where should the filter be fitted?
In the oil line between the tank and the burner pump, usually close to the burner so it’s easy to service.
Can a blocked filter cause lockouts?
Yes. A clogged filter starves the pump of fuel, which lowers pressure and can make the flame fail.
Do you deliver outside Nairobi?
We offer same-day delivery once your order is confirmed, subject to stock availability. Call or email our sales team to confirm stock and arrange delivery to your site.
Order a Burner Fuel Filter from Wisdo Merchants
Clean fuel means a healthy pump, a clear nozzle and a reliable flame. Our burner fuel filter protects your burner from dirty diesel. Furthermore, you can browse our burners range for burners and spares.
Visit us: Dar es Salaam Road, Off Enterprise Road, Industrial Area, Nairobi
Call: +254 795 938305
Email: sales@wisdomerchants.com









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