GSHA Services, LTD replaced a conventional tank water heater with a Navien NPE-240A2 condensing tankless water heater for a homeowner in Crystal Lake, IL. The high-efficiency Navien unit delivers endless hot water on demand, features a built-in recirculation pump for faster hot water at every fixture, and carries an ENERGY STAR rating that cuts gas usage compared to a standard tank. Our plumbers wall-mounted the unit, installed new PVC intake and exhaust venting through the exterior wall, connected the gas line, water lines, and condensate drain, and commissioned the system. Looking for tankless water heater installation in Crystal Lake, Cary, Algonquin, or McHenry County? GSHA Services is a Navien Service Specialist providing water heater replacement across the northwest Chicago suburbs.