The Challenge

The Gym Group was a pioneer of the low-cost gym model opening its first gym in Hounslow in 2008 and now operates 230 high quality sites across the UK. These gyms offer 24/7 opening and flexible, no-contract membership. As of 30 June 2023, there were 867,000 members nationwide.

To heat all of these gyms demands a huge amount of energy and produces a large amount of carbon meaning a new way of delivering low carbon hot water was required.

The Gym Group 2 1

The Solution

The solution was a Mitsubishi Electric Ecodan QAHV heat-pump working with an Oventrop Regumaq X-80 potable hot water station. This delivers instantaneous hot water without the need for stored water, making it the perfect way to deliver the high temperature, low carbon hot water needed.

Gas fired water heating would have produced 4 times as much carbon as the heat pump solution - 9.25kg CO2e for gas boiler hot water compared with 2.325kg for the heat pump system. Gas fired water heating would have cost 18% more each day than the heat pump solution.

The Gym Group 2

Products Used

QAHV

Ecodan QAHV Commercial Monobloc Air Source Heat Pump

Specifically designed for commercial sanitary hot water application, the Ecodan QAHV CO2 system delivers hot water up to 90 degrees Centigrade to provide a low carbon solution for hospitals, hotels, leisure centres and student accommodation.

Customer Testimony

We are always looking for innovative ways to reduce our carbon footprint in our gym operations - and this water heating system for our showers is the perfect example of a sustainable solution which delivers for our members and reduces costs in a time of higher energy bills

David Melhuish
Chief Development and Sustainability Officer,
The Gym Group

View & download the full case study