With the growing awareness of the need to improve energy efficiency of buildings, not just for cost savings but also for reduction of carbon footprint, asset owners and tenants are increasingly scrutinising the energy consumption of circulation pumps in their buildings. This is with good reason. Pumping systems account for nearly 20% of the worlds electrical energy demand. A 7.5kw pump will consume 65,700kWh per annum running at full speed at all times, and 90% energy consu

We often get asked by our clients to identify why a booster set doesn't turn off. Cold water booster sets are designed to only run when there is demand for water, and switch off automatically. This can be hard to verify in normal hours, as most buildings have a reasonably constant demand for water throughout the day, and demand often only stops overnight. However, a simple way to test whether a booster set turns off is to close the valve on the outlet (discharge) of the boo