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Apen AX

LPHW Unit Heater

The Apen AX is an LPHW unit heater that connects to a central boiler or heat pump to distribute heated water as warm air. With outputs from 7 kW to 125 kW, heating and cooling modes, horizontal or vertical mounting, and an optional EC fan for enhanced efficiency, it delivers versatile year-round climate control for commercial and industrial buildings.

KEY FEATURES

7kW to 125kW output range

7kW to 125kW output range

heating & cooling modes

Heating & cooling modes

horizontal or vertical mounting

Horizontal or vertical mounting 

optional EC fan for efficiency

Optional EC fan for efficiency

conects to boiler or heat pump

Connects to boiler or heat pump

attractive, modern styling

Attractive, modern styling

PRODUCT OVERVIEW

Versatile LPHW Heating and Cooling

The Apen AX is an LPHW (low pressure hot water) unit heater that connects to either a central boiler or heat pump system to distribute heated water as warm air throughout the building. With outputs ranging from 7 kW to 125 kW, it is suitable for a wide variety of applications from small commercial spaces to larger industrial areas.

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In addition to heating, the Apen AX can also operate in cooling mode, making it a versatile year-round climate control solution. This dual functionality means the same unit provides warmth in winter and cooling in summer, eliminating the need for separate systems for each season.

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The AX features attractive styling with good all-round aesthetic qualities, ensuring it blends seamlessly into any environment. Its design is both functional and visually appealing, making it a strong choice for commercial spaces where appearance matters alongside heating performance.

Apen AX LPHW Unit Heater

INSTALLATION & OPTIONS

Apen AX LPHW Unit Heater

Flexible Mounting with Optional EC Fan Upgrade

The Apen AX offers versatile installation options with horizontal or vertical mounting to suit different building layouts. A purpose-made mounting bracket simplifies the setup process and ensures secure positioning in any orientation.

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  • Outputs from 7 kW to 125 kW to suit spaces of all sizes, from small commercial units to larger industrial areas

  • Horizontal or vertical mounting with a purpose-made bracket for flexible, secure installation

  • Heating and cooling modes for year-round climate control from a single unit

  • Connects to a central boiler or heat pump system via LPHW pipework

  • Optional EC fan version for superior efficiency, precise airflow control, quiet operation, and longer lifespan

  • Attractive modern styling that blends into commercial environments where appearance matters

  • Smart Easy and Smart Web controls available for intelligent system management

KEY BENEFITS

Why Choose the Apen AX?

The AX combines LPHW compatibility, heating and cooling modes, flexible mounting, and optional EC fan technology in a well-designed unit heater for year-round comfort.

7kW to 125kW output range

7kW to 125kW Output

A wide output range from 7 kW to 125 kW makes the AX suitable for everything from small commercial spaces to larger industrial areas. Choose the right capacity for your specific space and heating demand.

heating & cooling modes

Heating and Cooling Modes

The AX operates in both heating and cooling modes, providing year-round climate control from a single unit. Warmth in winter and cooling in summer without the need for separate systems for each season.

connects to boiler or heat pump

Connects to Boiler or Heat Pump

Uses your existing central boiler or heat pump system to distribute heated or chilled water as conditioned air throughout the building. No separate gas supply or flue required at the unit itself.

optional EC fan for efficiency

Optional EC Fan

An EC fan version is available offering superior efficiency, precise control over airflow, quiet operation, and a longer lifespan. EC fans reduce energy consumption and noise levels compared to standard fan motors.

horizontal or vertical installation

Horizontal or Vertical Mounting

Flexible installation in either horizontal or vertical orientation to suit your building layout. A purpose-made mounting bracket simplifies setup and ensures secure positioning in any configuration.

attractive modern styling

Attractive Modern Styling

Good all-round aesthetic qualities ensure the AX blends seamlessly into any commercial environment. A visually appealing design that works in spaces where appearance matters alongside heating performance.

APPLICATIONS

Ideal For These Environments

The recessed ELiS B is designed for premium commercial and public spaces where visible equipment is undesirable.

warehouse heating

Warehouses

Large Storage & distribution spaces

factory heating

Factories

Production floors & manufacturing

Retail Units heating

Retail & Showrooms

Large display & commercial spaces

Workshops heating

Workshops

Vehicle & industrial workshops

Garden Centres heating

Garden Centres

Open-plan retail & growing spaces

Sports Halls heating

Sports Halls

Gyms, leisure centres, & arenas

TECHNICAL DATA

Specifications

Model

Apen AX

Heat Source

Boiler or Heat Pump

Type

LPHW Unit Heater

Fan Options

Standard / EC

Output Range

7kW to 125kW

Bracket

Purpose-Made Mounting Bracket

Mounting

Horizontal or Vertical

Function

Heating + Cooling

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Reventon S-3S Series LPHW Unit Heater

Reventon S-3S Series

LPHW warm air unit heater range for industrial and commercial applications. Alternative LPHW option. 

Apen LRN

Apen LRN Warm Air Unit Heater

Gas-fired warm air unit heater. An alternative option for buildings without a central LPHW system. 

Hadar DSF

Hadar DSf Destrat Fan

Pair with the Apen AX for a high-efficiency heating solution. Recirculated warm air from ceiling back down to occupied zones. 

Need LPHW Warm Air Heating?

Book a free site survey and our team will assess your building and existing LPHW system to recommend the right Apen AX configuration, output, and mounting for your space.

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