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Concern about utility bills is increasing; With constant price increases, it is advisable to reduce energy consumption as much as possible. In times of energy crisis, electric instantaneous water heaters are a cheap and sustainable way for large consumers. Powered by photovoltaic energy, they can also increase the self-consumption quota and, therefore, reduce costs even further.
What are electric instantaneous water heaters?
Electric instantaneous water heaters are electrically operated devices with a power of 3.5 to 6.5 kilowatts, the smallest, used to heat water efficiently.
Usually they are built into the closed water supply system. Tap water is rapidly electrically heated through a system of tubes (up to 60 degrees Celsius) and delivered to the consumer. The required tap water is heated almost directly as it flows through the heater. Hot water flows unhindered and a cold flow is no longer necessary, which has often contributed to water waste.
Advantages.
The clear advantage of instantaneous water heaters is that only the amount of water that is actually needed is heated .
The heat output is regulated by special electronics. This saves money, as raw material consumption and heating costs are significantly reduced .
Many manufacturers can individually adjust the temperature and flow rate. Therefore, there is always enough water available for use.
Instant electric water heaters: saving resources.
Instant electric water heaters are an alternative to conventional gas boilers. The only thing that is needed is an electrical connection in the vicinity of the socket point. The water is heated to the exact degree as it circulates through the instantaneous water heater.
Direct heating by electricity reduces heat losses through circulation, distribution and storage of water .
Increase your own photovoltaic consumption by heating water.
With a solar installation on your roof, you are already saving costs and emissions on your own energy supply. By electrifying your hot water supply with instant electric heaters, you increase the self-consumption rate of your solar energy. On the one Buy Email Database hand, this improves the economic efficiency of the photovoltaic installation and, on the other, the use of gas or oil for hot water supply can be reduced.
Separating heating and hot water reduces heat losses.
The lower the heating demand, for example, of renovated buildings and new efficient buildings, the greater the heat losses in the coupled systems. The energy loss of a coupled central hot water supply is around 40%. This is due to losses in circulation, distribution, start-up, storage and technical system.
Hydraulic vs electronic instantaneous water heaters.
Hydraulic instantaneous water heaters are characterized by mechanical control of hot water preparation. Classic appliances regulate the water temperature using predefined temperature levels (rotary selector or controls on the appliance) or via the mixer tap at the intake point.
In both cases, a certain amount of water must first pass through for the mechanical control to react. This means that water and heat energy are always lost. Electronic instantaneous water heaters are more expensive, but efficient, demand-oriented hot water supply saves electricity and water, making the additional costs quickly worth it.
What can instant water heaters be used for?
Small instantaneous water heaters are especially suitable for supplying water to sinks. Since no standby current is drawn compared to conventional small storage tanks, up to 85% energy can be saved with small instantaneous water heaters . Many manufacturers also offer small instantaneous water heaters specially designed for retrofitting.
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发表于 2024-2-19 13:46:07