Tankless water heaters provide hot water only as it is needed. There is not stand by heat losses associated with tank water heaters. Tankless water heaters heat water directly, without storage tank. When a hot water tap is turned on any where in the house, cold water is heated directly as it passes through either gas or electric heat exchanger. As a result, a tankless water heater can deliver constant, endless supply of hot water using less energy. Most tankless water heaters last up to 20 or more years. Pacific Tankless offers free onsite consultations and estimates, fast and professional installations, and extremely competitive pricing.