The internal components of the old gas continuous flow unit showed heavy corrosion across the heat exchanger and burner assembly. Attempting repairs on a unit in that condition would have been a short-term fix with ongoing reliability concerns. Our gas fitter isolated supply, disconnected the failed unit, and mounted a new Thermann continuous flow system in the same location. Pipework alterations included new 15mm copper sections and a 20mm ball valve isolation kit. The gas line was tested and a certificate of compliance issued. Maroochydore homeowners relying on ageing continuous flow units may find replacement more practical than repeated repairs. Contact Sunshine Coast Plumbing and Hot Water for gas installation assessment when your system stops firing reliably.