Rinnai lowers costs and environmental impact for launderette group

Rinnai has recently provided a high-efficiency water heating solution to a South Wales launderette which needed to replace its old gas boiler as the property wanted to lower operational costs and drive down emissions.

The new owner wanted to install new coin-activated washing machines and increase its capacity for more customers, resulting in an increase in peak demand loading for the hot water delivery system. The launderette planned to have 10 washing machines in total, with two different models differing in size and hot water consumption.

The site currently employs a low kW rating gas boiler with 144 litres of built-in internal storage, with the system only able to provide 154 litres of peak demand. The new coin-operated washing machines would see peak demand increase the loading of hot water delivery requirement to 276 litres. It also needed to be able to recover from peak demand conditions within 40 minutes – the average cycle of a coin operated commercial washing machine.

Rinnai UK proposed a system consisting of an N1300 continuous flow water heater with an additional 300-litre storage buffer to hold the peak demand for the washing machines. This system can recover the entire buffer in as little as 23 minutes.

www.rinnai-uk.co.uk