Showersave , part of The Keystone Group , which provides drain water heat recovery solutions, has collaborated with Currie Community High School  to install Waste Water Heat Recovery Systems (WWHRS)  as part of the school’s journey to Passivhaus  certification.    Built as part of the Scottish Government’s Learning Estate Investment Programme (LEIP) , the £65 million facility in south-west Edinburgh accommodates 1,000 students and includes a swimming pool, theatre, café and e