With the rising environmental awareness and new government laws and regulations focused on cutting carbon emissions, cleantech solutions are becoming very relevant. At the same time, customers and industries continuously pursue cost-effective solutions, whether for their homes or businesses. In that sense, the PIRANHA™ T10 HC wastewater heat recovery system was installed in a multi-family building pilot plant in North Vancouver in order to assess its performance when it comes to GHG emissions, energy reduction and cost savings. The results showed the PIRANHA™ T10 HC system was able to provide up to 100% of the domestic hot water and space conditioning to the building, with an energy and cost savings of over 60%. The system can fully offset the natural gas consumption and, consequently, the GHG emissions.