... No wait, no waste, no limit 3.Durable Tankless water heater details:1.Key Features:1) Safe, convenient, energy ... tankless water heater.2) Patent advanced heating technology.3) On-demand hot water - never runs out.4) Reduce water heating ... its service life.9) Less prone to hard water, sediment, or mineral problems.2.Specifications:Rated ... Qty/40' HQ: 2,800pcs Instant tankless water heater (DSK-G5)