The client, a UK manufacturer of respiratory and safety products including masks, helmets, and PPE, required a heating solution for a new warehouse facility in Oxford. Reznor worked alongside a local HVAC contractor to deliver a commercial heat pump system aligned with the client's sustainability and carbon reduction objectives.

The Challenge

The warehouse was a new building at the time of design, requiring a full heating strategy to be developed from the ground up. The client initially considered a traditional gas-fired warm air heating system, but a site survey found the site's gas capacity was insufficient to support this option. At the same time, the client was working toward emissions reduction and future-proofing targets for the building, with heating and cooling efficiency identified as a priority.

The Solution

Following heat loss calculations and floor plan analysis, Reznor specified a Lira air-to-air heat pump system for the warehouse. This was combined with upgraded insulation and solar panels, contributing to the building's EPC rating and long-term energy performance. The design zoned the warehouse to direct heating and cooling to the areas where it was needed, and the system supports both heating and cooling through a single setup, allowing year-round temperature control.

Project Delivery

Reznor and the appointed contractor managed the project from initial enquiry through to aftercare, including:

  • Communication during the enquiry stage

  • A site survey to confirm product suitability

  • System design and technical compliance

  • Design and product sign-off

  • Installation by a local HVAC contractor

  • Commissioning by the Reznor service team

  • Ongoing aftercare and support

Products Installed

  • 2 × Lira Air Plus Outdoor Air to Air Heat Pumps

  • 2 × Lira Air Indoor Heat Pump Units

  • 2 × Reznor Destratification Fans

Performance & Sustainability Benefits

The combination of air-to-air heat pumps and destratification fans distributes warm air throughout the warehouse by returning heat that collects at high level back to the occupied zone. This contributes to more consistent thermal comfort and reduced energy demand.

The system has delivered savings through reduced energy consumption and lower CO2 emissions since installation. The client, a Gold member of the Supply Chain Sustainability School, has stated its ongoing commitment to reducing emissions across its products, packaging, and operations. The system is also designed to allow future integration with solar battery storage, to further reduce dependence on grid electricity.

Why Air to Air Heat Pumps for Warehouse Heating

Reznor's air-to-air heat pumps use R32 refrigerant and are rated with a Coefficient of Performance (COP) of up to 4.36. They provide both heating and cooling from a single system, allowing temperature control across the year while reducing associated carbon emissions.

Can a Heat Pump Be Used for Cooling?

Air-to-air heat pumps can operate in cooling mode during warmer conditions, in addition to providing warm air heating in colder weather.