
Apen LKN Condensing Warm Air Unit Heater

Apen LKN Condensing Warm Air Unit Heater

Apen LKN Condensing Warm Air Unit Heater

Apen LKN Condensing Warm Air Unit Heater
Apen LKN
Condensing Warm Air Unit Heater
The Apen LKN is a condensing gas warm air unit heater delivering efficiencies of up to 108% with outputs from 19 kW to 100 kW. Featuring a premix burner with continuous microprocessor-controlled modulation, very low NOx emissions, and flexible flue options, it provides high-efficiency heating that exceeds ErP 2021 requirements.
KEY FEATURES
Up to 108% efficiency
19kW to 100kW output
Microprocessor controlled modulation
Very low NOx emissions
Proven premix burner technology
Flexible rear or top flue exit
PRODUCT OVERVIEW
Condensing Efficiency up to 108%
The Apen LKN is a condensing gas warm air unit heater designed with advanced technology to provide very high efficiency. Achieving efficiency levels of up to 108%, it maximises energy use and minimises waste, translating directly into significant energy savings and lower operating costs compared to non-condensing alternatives.
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With outputs from 19 kW to 100 kW (full fire), the LKN caters to different heating needs and space sizes, from smaller commercial units to larger industrial areas. The unit exceeds the requirements of the Energy-related Products Directive (ErP) 2021, meeting stringent energy efficiency and emission standards.
Each unit features a proven premix burner with continuous microprocessor-controlled modulation, ensuring consistent and efficient heat delivery. The modulating capability adjusts output to match demand precisely, avoiding the energy waste of fixed on/off cycling.

INSTALLATION & CONTROLS
Flexible Flue Options & Smart Controls

The Apen LKN offers flexible installation with standard rear flue and combustion air connections that can be relocated to the top panel if required. This adaptability accommodates various installation constraints and building layouts.
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Outputs from 19 kW to 100 kW (full fire) to suit various building sizes and heating demands
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Condensing efficiency up to 108%, maximising energy use and minimising waste
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Premix burner with continuous microprocessor-controlled modulation for consistent, efficient heat delivery
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Very low NOx emissions for reduced environmental impact and improved air quality
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Standard rear flue and combustion air connections, relocatable to the top panel for installation flexibility
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User-friendly LED display clearly indicates heater status for easy monitoring and maintenance
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Smart Easy and Smart Web controls available for intelligent system management
KEY BENEFITS
Why Choose the Apen LKN?
The LKN combines condensing efficiency, modulating premix burner technology, and flexible installation in a compact unit heater that delivers maximum heat from minimum gas.
Up to 108% Efficiency
Fully condensing operation extracts maximum heat from every unit of gas consumed, delivering efficiencies of up to 108%. This translates directly into significant energy savings and lower gas bills compared to non-condensing alternatives.
19kW to 100kW Output
A range of outputs from 19 kW to 100 kW (full fire) caters to different heating needs and space sizes. From smaller commercial spaces to larger industrial areas, there is an LKN model to match your requirements.
Microprocessor-Controlled Modulation
The proven premix burner features continuous microprocessor-controlled modulation that adjusts output to match demand precisely. This avoids the energy waste of fixed on/off cycling and ensures consistent, efficient heat delivery.
Very Low NOx Emissions
Designed to produce very low nitrogen oxide (NOx) emissions, contributing to reduced environmental impact and improved indoor air quality. Meets and exceeds current emission standards for responsible, sustainable heating.
Proven Premix Burner Technology
A proven premix burner delivers reliable, consistent combustion for efficient heat output. Combined with continuous microprocessor-controlled modulation, it adjusts output to match demand precisely for dependable performance day after day.
Flexible Rear or Top Flue Exit
Standard rear flue and combustion air connections can be relocated to the top panel if required. This flexibility accommodates various installation constraints and building layouts, simplifying installation in tight spaces.
APPLICATIONS
Ideal For These Environments
The Apen LKN is designed for commercial and industrial buildings that need high-efficiency condensing warm air heating with low emissions and low running costs.
Warehouses
Large storage & distribution spaces
Factories
Production floors & manufacturing
Workshops
Vehicle & industrial workshops
Sports Halls
Gyms, leisure centres, & arenas
Retail & Showrooms
Large display & commercial spaces
Garden Centres
Open-plan retail & growing spaces


