SZS Series

A. large furnace
High quality European manufactured Oilon
burners offer superior control and efficiency
to minimise fuel costs.

Tube wallS

Tube walls are manufactured using
a CNC welding and bending process
to ensure superior quality.

triple layer insulation

Triple layer insulation system providing
surface temperatures under 50°C.


Large heating surface to maximise heat

Furnace access

Furnace access and explosion proof door.


Durable outer steel casing.


Superior design:

Our SZS series boilers offer innovative design maximising efficiency. These Water Tube boilers incorporate a furnace with a large surface area to maximise thermal heat transfer. The standard boiler design allows for a super heater to be fitted easily should super-heated steam be required for your process.

Quality manufacturing process:

The SZS range of boilers are designed and manufactured to an accepted standard in New Zealand (ASME) under an ISO9000 quality management system. In addition, third party inspection, by a Department of Labour approved body, is also carried out to independently verify quality during the manufacturing process.

Extraordinary performance:

Energy Plant Solutions' SZS series Water Tube Steam boilers provide efficiency of 84 - 87% gross efficiency to minimise your fuel consumption. A large combustion space with increased surface area provides superior energy transfer from the combustion gas into the water.

Superior insulation:

The superior triple layer insulation system on the SZS series boilers comprises a ceramic fibre layer attached to the shell of the boiler and covered by a thick silver reflective blanket to reflect lost heat back inward, encompassed by a thick layer of fibre glass insulation and then clad in an outer steel casing. This insulation reduces radiant and conductive losses to atmosphere, achieving optimal efficiency and exterior boiler surface temperatures of below 50°C.


Each model of boiler is designed to incorporate a large steam space and steam scrubber, providing high quality steam even under varying loads. This high quality steam eliminates unnecessary condensate in the steam, ensuring superior heat exchange in the process equipment, reducing overall fuel consumption and scaling.

Easy maintenance:

Removable man doors on each end of the steam drum, water drum and furnace allow easy access to the water and fire sides of the boiler for inspection, cleaning and maintenance.

Environmentally friendly:

Optimal boiler efficiency provides superior boiler performance over our competitors' products, reducing the amount of fuel required to achieve the same boiler output. This reduces the impact on the environment and the overall ongoing operational costs associated with the boiler. Flue gas economisers and condenser options are available to further enhance the performance of our package boilers reducing fuel consumption, operating costs and CO2 emissions even more.

High quality ancillaries:

EPS use high quality European equipment on our package boilers. These include Spirax Sarco valving and control equipment, Oilon burners, complete with Siemens' LMV control system and multistage feedwater pumps. The quality of this equipment ensures superior control and ongoing reliability.

Advanced control system:

Our market leading package boiler control system is modeled around the Siemens' LMV combustion control system and our PLC, providing accurate and repeatable burner control and excellent overall boiler control. Our Oilon burner range provides high combustion efficiency operating at low excess air levels. In addition, EPS can offer variable speed combustion fan control and automated oxygen trim to further optimise electricity and fuel savings for the life of the boiler. Our control system comprises a 10" colour touch screen operator interface with PLC control, animated to indicate current boiler control status, boiler fault descriptions, trending and testing functions. A cellular modem provides the ability to contact responsible persons assigned to the boiler via cell phone or pager, with a description of the actual fault should it occur.

Premium service:

The quality of our installations is second to none. Commissioning is carried out to a high standard with an emphasis on precise control and superior efficiency. Boiler training is provided to ensure those responsible for the ongoing supervision of the boiler are trained to protect your investment and ensure it is operated safely and efficiently. EPS follow this up with market leading after sales technical and service support to our customers.