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Plate heat exchangers’ major impact

St George’s Hospital, Tooting, is saving £45,000 annually after upgrading the heating and hot water systems in one of its plant rooms to Spirax EasiHeat plate heat exchanger packages.

Five EasiHeat systems now serve the 1,000-bed hospital’s Lanesborough wing. Three provide heating, and two deliver domestic hot water in a duty/standby arrangement. Heating was previously provided by three shell-and-tube calorifiers, while four more provided hot water. The subsequent £45,000 savings are a combination of improved energy efficiency and reduced maintenance.

EasiHeat systems use compact steam-to-hot-water plate heat exchangers which deliver heating and hot water on demand, and include a second pass condensate cooler, which helps condense the steam and encourage more efficient heat transfer. Spirax Sarco said: “Maintenance cost savings are also being achieved. EasiHeats are exempt from insurance inspections.”

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