Who can benefit from buffer storage?
Basically everyone, as buffer storage increases the value of any heating system, improves efficiency and reduces running costs.
Buffer for uneven demand: the fire produces a certain minimum amount of energy. The combustion process cannot be held back indefinitely. If a very small amount of energy is required, this demand can only be handled with a buffer store. If, for example, the heating demand is less than the boiler produces, the buffer will store the excess heat and then slowly release it. The boiler starts less often, so it does not waste energy. However, if a large amount of energy is needed suddenly, for example if a lot of hot water is needed at once, the boiler cannot react as quickly. But the buffer storage solves this problem.
ETA has developed a unique stratified charging concept with buffer charge management at its core. This knows exactly when and at what capacity the tank can be ideally filled and when heat is again provided to the consumer. The entire buffer management can be regulated and controlled via the boiler’s touch screen or the meinETA web platform.
Heat rises, cold sinks: this is a physical law that also applies to the water in the buffer. If water were always introduced into the buffer at the same point, regardless of temperature, it would cause significant mixing in the buffer. This would lead to a loss of energy. Instead, heating return water, for example from a solar thermal system, is fed into the buffer exactly where it should be – colder water downstream, warmer water upstream.
The better the temperature stratification works, the better and more energy efficient the buffer works. This is why it is important to move the water slowly. The water is introduced through special ETA gaps in the buffer to the correct stratification.