Rendamax R3456 EVO Boiler
Rendamax R3456 EVO Boiler
Rendamax R3456 EVO Boiler
Rendamax R3456 EVO Boiler

Rendamax R3456 EVO Boiler

Commercial Floor-Standing Boiler

650 – 2.000 kW

The R3456 EVO is an industry-leading boiler range designed for large commercial applications, delivering outputs of up to 2 MW. The range includes four models: R3400, R3500, R3600 and R3610.

  • Engineered for high-demand commercial sites
  • Up to 2 MW performance from a single premix boiler
  • High efficiencies reaching up to 109.7%
Get a Quote

Rendamax R3456 EVO Boiler:

  • Floor Standing
  • 29 models (650 – 2.000 kW)
  • Pre-mix modulating
  • Highly efficient (up to 109,7 %)
  • Ideal for integration with complex systems: solar, CHP units, heat pumps
  • Up to 2 MW performance from a single premix boiler
  • If cascaded a total output of 32 MW can be achieved (up to 16 boilers)
  • Modular configuration with 2 - 4 heat exchanger sections
  • Water-cooled cold flame burner with advanced geometry for ultra-low NOx and CO
  • Heat up time from cold condition to standby temperature is just 30 seconds
  • Compact dimensions and low operating weight
  • Can be disassembled for transport and includes height-adjustable cargo wheels
  • Stainless steel heat exchangers
R3400 EVO RangeR3401 EVOR3402 EVOR3403 EVOR3404 EVOR3405 EVOR3406 EVOR3407 EVOR3408 EVOR3409 EVOR3410 EVO
Efficiency at full load (%)92,6 92,6 92,692,692,692,692,692,692,692,6
Annual efficiency (%)103,3103,3103,3103,3103,3103,3103,3103,3103,3103,3
Nominal heat output at 80/60°C (kW)650 726 849 961 1073 1184 1296 1481 1666 1851
Nominal heat output at 50/30°C (kW)650 726 849 961 107411851297 1482 1667 1853
Water content (L)50 53 70 7580 85 97 109 116 123
NOx level (mg/kWh)23232323232323232323
Height (mm)1555155515551555155515551555157515751575
Width (mm)1370137011701170137013701570137015701570
Weight when empty (kg)7708449581084122113691380174018991991
R3500 EVO RangeR3501 EVOR3502 EVOR3503 EVOR3504 EVOR3505 EVOR3506 EVOR3507 EVOR3508 EVOR3509 EVO
Annual efficiency (%)103,7103,7103,7103,7103,7103,7103,7103,7103,7
Efficiency at full load (%)94,194,194,194,194,194,194,194,194,1
Height (mm)155515551555155515551555157515751575
Nominal heat output at 50/30°C (kW)62072582191710111106126514221581
Nominal heat output at 80/60°C (kW)61571981490910031097125514111568
NOx level (mg/kWh)222222222222222222
Water content (L)5370 75808597109116123
Weight when empty (kg)8449581084122113691380174018991991
Width (mm)137011701170137013701570137015701570
R3600 EVO RangeR3601 EVOR3602 EVOR3603 EVOR3604 EVOR3605 EVOR3606 EVOR3607 EVOR3608 EVOR3609 EVOR3610 EVO
Efficiency at full load (%)97,897,897,897,897,897,897,897,897,897,7
Annual efficiency (%)109,1109,1109,1109,1109,1109,1109,1109,1109,1109,1
Nominal heat output at 80/60°C (kW)639 747846 945 1043 1141 1304146716301953
Nominal heat output at 50/30°C (kW)676791896 1001 1104 12081381 1553 1726 2069
Water content (L)7397104110117 131 147157166209
NOx level (mg/kWh)22222222222222222223
Height (mm)1555155515551555155515551575157515751665
Width (mm)1370117011701370137015701370157015701570
Weight when empty (kg)1136 1328 1468 1634 1800 1900 20002100 22012500
Download Full Technical Specifications

Downloadable Literature:

R3456 boiler drawing
  1. Top plate
  2. Water flow switch
  3. Flow water connection
  4. Filling/draining valve
  5. Burner
  6. 1st Heat exchanger
  7. 2nd Heat exchanger
  8. Gastrain
  9. Pilot mixing channel
  10. Frame
  11. Main gas valve
  12. Pilot gas valve
  13. Main mixing channel
  14. Butterfly valve
  15. Air inlet box
  16. Casing
  17. Control panel
  18. Electrical box
  19. Fan
  20. Pressure sensor
  21. Flue gas temperature sensor (on condense tray)
  22. Flow & Return temperature sensors (on water pipes)
  23. Compensator
  24. Flue gas connection
  25. Condensate receptacle
  26. Combustion chamber
  27. Return water connection
  28. Entry electrical connections
  29. Syphon
  30. 3rd Heat exchanger (only EVO models)
  31. Air
  32. Gas
  33. Flue gasses
  34. Condensate

Suitable for High-Demand Commercial Applications:

  • Hospitality
  • Healthcare
  • Medical Facilities
  • Education
  • Manufacturing
  • Food Processing
  • Commercial Buildings
  • Leisure Facilities
  • Laundry Services

We Supply a Full Range of Rendamax Components for All Rendamax Equipment Models

Our most popular components:

  • Ionization Electrode
  • Ignition Electrode + Gasket R3XXX
  • Sensor (Flow-Return)
  • Electrode Ignition Cable
  • Pressure Sensor
Shop Parts Online

Purchase parts directly online by clicking here, or contact our spares department at [email protected].

Need Technical Support? We’re Happy to Help.

Contact Us

Class-Leading Outputs

Featuring a fully modulating, water-cooled cold flame, the R3456 EVO series uses unique in-house burner technology to deliver reliable performance and outputs of up to 2 MW. Renowned for optimised efficiency and ultra-low emissions, it ensures robust, high-performance operation.

Built for Complex Systems

Engineered for complex systems, the R3456 EVO series uses low water content technology to deliver compact dimensions and reduced weight. This enables rapid response to changing demands, reaching standby temperature from cold in just 30 seconds.

The Complete Range

The R3456 EVO range comprises four models that all offer powerful performance, topped by an industry first 2 MW version. With extremely flexible configurations, clever design and a wide range of models available, this series of boilers is perfect for a variety of demanding commercial applications.

Replace Your Boiler in 4 Simple Steps

Request a Quote  |  Receive Tailored Quotation  |  Access to Free Technical Support  |  Quick Delivery & Installation

Request a Quote​

Comprising the R3400, R3500 and R3600 models, the Rendamax R3456 EVO range is engineered for high-demand commercial sites, with outputs reaching 2MW. Contact our team today for a tailored quotation.

Request a Quote
Set your categories menu in Header builder -> Mobile -> Mobile menu element -> Show/Hide -> Choose menu
Sidebar
Start typing to see posts you are looking for.