Specialist service
Calorex Delta range
Installation, maintenance and responsive technical support across London and Greater London.
About Calorex Delta range
Maintaining optimal humidity levels in indoor swimming pools is crucial for preventing condensation, protecting structures from corrosion and mould, and ensuring a comfortable environment for users.
Swimming pool dehumidifiers, particularly advanced models like the Calorex Delta air handling unit, are engineered to tackle these challenges head-on.
The Calorex Delta series stands out as a sophisticated hybrid solution, combining heat pump technology with fresh air dehumidification to efficiently remove excess moisture from the air while recovering heat to warm both the pool water and the surrounding space.
Ideal for commercial, public, and domestic indoor pools in the UK, these units dynamically adjust to varying conditions — such as pool size, water temperature, and bathing activity — delivering energy-efficient performance that minimises running costs and environmental impact.
Whether you're managing a leisure centre or a private facility, investing in a Calorex Delta dehumidifier ensures year-round reliability and superior air quality.
As authorised Dantherm/Calorex agents, we specialise in the full lifecycle of Calorex Delta air handling units, from seamless installation tailored to your venue's layout to comprehensive maintenance and prompt repair services.
Our certified technicians handle everything, including custom ducting designs, filter replacements, and performance diagnostics, to keep your swimming pool dehumidifier operating at peak efficiency. With our local expertise in London, we respond quickly to service calls, helping you avoid downtime and extend the lifespan of your equipment.
Contact us today for a consultation on Calorex Delta solutions — we're committed to delivering hassle-free humidity control that enhances your indoor swimming pool experience.
Technical insight
Efficiency and performance
The Calorex Delta series of air handling unit excels in energy efficiency through its innovative hybrid design, which integrates heat pump technology with fresh air dehumidification and dynamic heat recovery systems.
At the core of its performance is a high-efficiency heat exchanger that achieves up to 95% heat recovery from extracted moisture-laden air, redirecting this energy to heat both the pool water and the surrounding air, significantly reducing the need for auxiliary heating sources.
Complementing this, the unit employs low-energy EC (Electronically Commutated) fan motors, which consume up to 50% less power than traditional AC motors, and an optimized compressor that enhances overall thermodynamic efficiency. This combination results in one of the lowest possible operating costs for indoor swimming pool environments, making the Delta ideal for commercial, public, and domestic applications in the UK, where energy savings directly impact long-term sustainability.
In terms of quantifiable metrics, the Calorex Delta's Coefficient of Performance (COP) typically ranges from 3.5 to 5.0, depending on the model (such as Delta 2 to Delta 16) and operating conditions like pool size, water temperature, and humidity levels—far surpassing conventional dehumidifiers that often hover around a COP of 2.0. Users can expect energy savings of 30-50% compared to standalone systems, thanks to variable recirculation and fresh air rates (up to 50% of total airflow), intelligent controls that adjust to occupancy modes, and compatibility with renewable sources like ground or air-source heat pumps for low-pressure hot water (LPHW) integration.
As Dantherm/Calorex approved agents, we ensure these efficiency benefits are maximized through expert installation, maintenance, and repairs, helping you achieve optimal performance while minimizing your carbon footprint.
Talk to an engineer
Need support with calorex delta range?
Tell us what you need. Our London-based team will come back to you with practical next steps.