Tankless water heaters, also known as on-demand water heaters, provide hot water without the need for a storage tank. These energy-efficient devices heat water directly as it flows through the device, ensuring a constant supply. They are compact and offer significant savings on energy bills over time.
The Mechanics Of On-demand Water Heating
At the heart of a tankless water heater lies a heat exchanger. This is activated by the incoming flow of water. When a hot water tap is turned on, the cold water travels through a pipe into the unit. In an electric tankless water heater, electric elements heat the water. For gas-fired units, a gas burner serves this purpose. As water flows through the exchanger, it’s heated to the desired temperature, providing a steady stream of hot water.
- Electric models: Use high-powered resistive heating coils.
- Gas models: Utilize a gas burner with exhaust.
Performance Factors: Flow Rates And Temp Controls
Performance of a tankless water heater is defined by two main factors: flow rate and temperature control. The flow rate, measured in gallons per minute (GPM), determines how much hot water the heater can deliver. Temperature controls, meanwhile, allow users to set and maintain a precise water temperature for comfort and safety.
Feature | Benefit |
---|---|
Flow Rate (GPM) | Determines quantity of hot water available |
Temperature Control | Allows precise heating settings |
- Identify needs based on water usage.
- Choose a model with suitable GPM rating.
- Adjust temperature as per preference.
Advanced models may include features like energy-saving modes and self-modulating power control to further enhance efficiency and performance.
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