Riello RL 34 MZ Two-Stage Diesel Burner | Wisdo Merchants

Description

Riello RL 34 MZ Diesel Burner for Large Hot Water and Steam Boilers

Factories, large hotels, hospitals and laundries run boilers that face big swings in demand. In the early morning, everyone needs hot water or steam at once. Later in the day, the load drops sharply. A single-stage burner handles this poorly, switching on and off constantly. The Riello RL 34 MZ diesel burner solves this with two-stage firing. At Wisdo Merchants, we supply it to boiler contractors, plant engineers and facility managers across Nairobi and Kenya.

The RL 34 MZ belongs to Riello’s RL MZ series of light oil burners. It delivers up to 395 kW at full output, and it can run on a low flame or a high flame to follow the building’s demand. As a result, it suits larger hot water boilers, steam boilers and other industrial heating equipment.

Features and Benefits of the Riello RL 34 MZ Diesel Burner

• Two-stage firing. It runs on a low flame for light loads and switches to a high flame at peak demand, which means fewer starts and steadier temperatures.
• High output. It reaches up to 395 kW in second stage, enough for large commercial and light industrial boilers.
• Flexible operation. It can also be set up to work as a single-stage burner if the installation requires it.
• Smart control panel. A microprocessor control panel continuously shows the burner’s status and the cause of any fault, which speeds up diagnosis.
• Certified quality. The RL MZ series is certified to the European burner standard EN 267.

For plant owners, this means efficient fuel use and fewer breakdowns. Meanwhile, technicians can find and fix faults faster.

Technical Specifications

Applications of the Riello RL 34 MZ Diesel Burner and How to Use It

• Hot water and superheated water boilers in hotels, hospitals and institutions
• Steam boilers and steam generators in factories, laundries and food processing
• Thermal oil heaters for industrial process heating
• Air heaters in workshops and industrial buildings
• Replacing older burners on existing large boilers

Commissioning a Two-Stage Burner

Picture a laundry fitting a new burner to its steam boiler. First, the technician mounts the RL 34 MZ to the boiler plate and connects the diesel supply and return lines. Next, they fit two nozzles, one for the first stage and one for the second, sized to the boiler’s low and high demand. After that, they wire the burner to the two-stage boiler controls. Finally, they fire the burner, set the air for each stage, and tune both flames with a combustion analyser, checking the flue gas readings at low and high fire.

Single-Stage or Two-Stage?

Two-stage burners suit boilers whose demand rises and falls during the day. For smaller hot water boilers with steady demand, a single-stage burner is often enough, such as our single-stage 95–213 kW model.

Safety and Handling

• Use qualified technicians. Only trained burner and boiler technicians should install, commission and service the burner.
• Ensure good ventilation. The boiler room needs enough fresh air for complete combustion at full output.
• Check the flue. A sound, correctly sized chimney keeps flue gases safely out of the building.
• Keep fuel lines tight. Leaks let air into the pump and create a fire risk.
• Isolate power before work. Switch off and lock out the electrical supply before servicing.
• Service regularly. Clean the combustion head, replace both nozzles and check both flames at each service.

Frequently Asked Questions

What does two-stage firing mean?

The burner has a low flame and a high flame. It runs on the low flame when demand is light and adds the high flame when more heat is needed.

What output does the RL 34 MZ cover?

It delivers 154 to 395 kW in second stage, depending on the nozzles and settings chosen.

Can it run as a single-stage burner?

Yes. The RL 34 MZ can work in either single-stage or two-stage mode.

What does the control panel show?

The microprocessor panel continuously displays the burner’s operating status and the cause of any fault, helping technicians diagnose problems quickly.

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 the Riello RL 34 MZ Diesel Burner from Wisdo Merchants

Large boilers need a burner that adapts to demand. Our Riello RL 34 MZ diesel burner gives hot water and steam boilers efficient, two-stage firing with smart diagnostics. Furthermore, you can browse our full product range for your other maintenance needs.

Visit us: Dar es Salaam Road, Off Enterprise Road, Industrial Area, Nairobi
Call: +254 795 938305
Email: sales@wisdomerchants.com