Hot Water Generators

Pressurised water heaters connected between the cold water mains and the tap and/or shower. With these devices, when hot water is needed the tap is opened and the cold water arriving at mains pressure is heated as it is used. Because nothing is stored, radiation losses are low and they achieve energy efficiency class A. They are smaller than storage models. Depending on capacity, they run on single-phase or three-phase electricity.

These devices keep hot domestic water ready in a storage tank. They work at mains pressure. When the hot water in the tank starts to run out, the single-phase electric heaters inside the device switch on. Because these products store water, low-capacity (1.2–2.0 kW) single-phase heaters are generally used. Depending on the manufacturer, models from 5 to 15 litres are available.

These devices keep hot domestic water ready in a storage tank. They work at mains pressure. When the hot water in the tank starts to run out, the single-phase electric heaters inside the device switch on. Depending on the manufacturer, models from 30 to 200 litres are available. Again depending on the manufacturer, there are single-phase or three-phase models in the range of 1.2 kW to 6.0 kW.

These devices keep hot domestic water ready in a storage tank. They work at mains pressure. When the hot water in the tank starts to run out, the single-phase electric heaters inside the device switch on. Depending on the manufacturer, models from 120 to 500 litres are available. Again depending on the manufacturer, there are single-phase or three-phase models in the range of 2.0 kW to 54.0 kW.

Compact devices that heat cold mains water using natural gas. They work according to the mains pressure. Models from 18 kW to 50 kW are available.

These devices produce both heating and hot water. Unlike sealed gas water heaters, they can also provide heating. Depending on the desired hot water comfort and quantity, models with a plate heat exchanger and models with a cylinder are available. In models with a heat exchanger, hot water is heated instantly when needed. In storage models it is also kept ready in a tank.

Devices that produce hot water in a comfortable, high-capacity way. They use gas as fuel. They are generally preferred where consumption is high. Thanks to their compact design they are easy to install anywhere. The devices also have storage tanks on top, so they can respond quickly to sudden and high demand. Storage volumes range from 217 to 480 litres and capacities from 30 kW to 120 kW, depending on the model. They can produce from 1300 l/h up to 4300 l/h of hot water. They can also be operated in cascade and, if desired, used in industrial applications. The unit can raise the domestic hot water temperature up to 80 °C, depending on demand.

Hot water stations are preferred where there is a high demand for domestic hot water, in boiler rooms with limited space, in projects where the growth of legionella bacteria is not wanted and in projects that call for easy installation. The primary circuit circulation pumps, recirculation pumps, stainless steel heat exchanger, control unit, installation accessories and sensors are all factory-assembled inside the device and delivered to the site in a box. The control unit offers every kind of function. Models from 30 kW to 432 kW are available and can be cascaded if desired. As with cylinders, there is no risk of perforation.

These products take their energy from the air, so their efficiency is much higher than that of electric water heaters. On average they work with a COP of 3 and therefore consume much less energy than electricity alone. If the heat pump on the device cannot meet the hot water demand, the electric heater on the device switches on to cover it. Two models of 100 and 150 litres are available.

These products take their energy from the air, so their efficiency is much higher than that of electric water heaters. On average they work with a COP of 3 and therefore consume much less energy than electricity alone. If the heat pump on the device cannot meet the hot water demand, the electric heater on the device switches on to cover it. A model of 450 litres is available. The storage section of the device also contains a coil. This coil can, if desired, be fed with solar thermal energy, gas or solid-fuel boilers or other heat generators.