HEMx Lx & SLx Gas Fired Heat Exchange Module

The new ErP 2021 ready HEMx SLx gas-fired heat exchange module benefits from lower NOx levels and a new easy-access control panel. Its compact design and flexible configuration are able to provide designers with efficient and cost-effective solutions for a wide variety of air heating and drying applications including new and refurbished air handling units, duct heaters and dryers. The HEMx range is available in two differing configurations: HEM-Lx 15- 200 and HEM-SLx 30 – 200. Where higher duties are required modules may be installed in either parallel or in series. Depending on model and size such multiple modules may be supplied factory pre-assembled.

  • KW OUTPUTLx 15-200 / SLx 30-200

The heat exchanger assembly has a ten year time related warranty

  • Benefits

    ErP Ready.

    • ErP 2021 Ready
    • Reduced NOx levels
    • Redesigned control panel access
    • Customisable configuration
    • Capacity range from 30kW to 200kW
    • Reduced air stratification
    • Replacement unit matching from other suppliers
    • Proven durability and long operational life
    • Only the best high-grade stainless-steel materials
  • Features

    ErP 2021 Ready

    Fuel usage and emissions are a key consideration within the HEMx design with all modules offering efficiencies compliant with the latest ErP legislation.

  • Features

    Customisable & Adaptive

    Each Powrmatic HEMx unit is custom made with a wide range of kW and size configurations and has been adapted to suit the needs of the OEM and AHU industry by the provision of its slot-in casing arrangement. A four-pass tubular heat exchanger assembly manufactured from aluminised steel formed, swaged and expanded without recourse to stress-inducing welding. AISI T 409 grade stainless steel option is standard with T316 an additional upgrade option

  • Features

    Air handling & rooftop applications

    Each Powrmatic HEMx unit is custom to suit the needs of the OEM and AHU industry by the provision of its slot-in casing arrangement for heating and heat integration within air handling units and rooftops.

  • Features

    External & Plant-room enclosures

    The HEMx range is available for weatherproofed external and internal plant room applications. Fully galvanized steel construction in either self finish or durable epoxy powder coated paint finish to BS 10-A-05 as standard. Other colours are available priced upon application.

  • Features

    Easy Access Control Panel

    The HEMx range now has a unique pull-down easy access control panel for easy onsite installation and maintenance.


All of Powrmatic’s documents are available as PDFs. Simply click on the links below to download them.

Installation Manuals and Technical Bulletins are available for Gas Safe registered engineers via our Trade Club here


How to Buy

In order to purchase our products, we only sell directly via Gas Safe Registered installers and distribution partners throughout the UK. Depending on your requirements, simply select the most appropriate option below.

Need product advice?

Contact The Team

Our OEM team can offer product selection and application advice for your project. The team can recommend the best size and type of heater you will require and provide you GA drawings to assist you with your project.

Contact Us

Need a full turnkey solution?

Design & Installation

As manufacturers of OEM equipment, we work in partnership with the UK’s leading AHU specialists in the design, supply, installation and maintenance of air handling systems offering the complete package for your project.

Contact Partner