Delivering advanced VRF & Ventilation Solutions at Cobalt, Oxford

At Cobalt, Oxford, Hartle delivered a comprehensive HVAC solution designed to meet the demands of a modern commercial space.

The project required a system that could provide:

• Flexible zoning

• Energy-efficient operation

• Reliable year-round comfort

• Compliance with current regulations


A Variable Refrigerant Flow (VRF) system was selected for its flexibility and efficiency. VRF technology allows multiple indoor units to operate independently while connected to a single outdoor system, providing precise temperature control across zones.

Mechanical ventilation systems were integrated to ensure adequate fresh air supply and indoor air quality, with heat recovery incorporated to maximise efficiency.
Despite programme pressures and coordination challenges typical of commercial projects, the installation was delivered successfully – providing the client with a high-performance, low-maintenance HVAC solution.

This project demonstrates Hartle’s ability to design, coordinate, and deliver complex mechanical services installations efficiently and professionally.